Toughness-improved geopolymer thermal insulation composite wall and construction method

Abstract

The invention relates to a composite wall and a construction method thereof, in particular to a geopolymer heat-preservation composite wall with improved toughness and a construction method of the geopolymer heat-preservation composite wall. The problems that an existing building outer wall heat preservation system is on fire, hollow, cracked and disengaged, solid waste pollution is serious, and emission of environmental pollutants such as nitric oxide and formaldehyde is high are solved. The composite wall body is composed of an inner thermal insulation system, a concrete layer and an outer thermal insulation system. The outer heat preservation system is sequentially composed of a coating layer, a second photocatalysis layer, a second outer side protection layer, a heat preservation transition layer, a second heat preservation layer, a second inner side protection layer and a second roughening layer from outside to inside. The inner heat preservation system is sequentially composed of a first roughening layer, a first inner side protection layer, a first heat preservation layer, a first outer side protection layer and a first photocatalysis layer from outside to inside. The composite wall can effectively improve the toughness of a building external wall insulation system, the service life of the composite wall is the same as that of a reinforced concrete wall, and long-term stability is guaranteed. And the photocatalytic layer can effectively reduce environmental and building pollution.

Description

Technical Field

[0001] The invention relates to a composite wall and a construction method thereof. Background Art

[0002] The construction industry is a major contributor to energy consumption and carbon emissions. Data shows that building energy consumption accounts for over 40% of global energy consumption. As a crucial component of a building's envelope, heat loss from exterior walls is crucial. Therefore, installing insulation systems on building exterior walls is crucial for energy conservation and emission reduction, and their importance is becoming increasingly prominent.

[0003] However, traditional building exterior wall insulation systems have significant shortcomings in terms of safety and disaster resilience. The core of disaster resilience lies in the system's ability to withstand disasters, control losses, and recover from disasters. Organic insulation materials such as polystyrene and polyurethane, commonly used in traditional building exterior wall insulation systems, have low ignition points and poor flame retardancy. They burn rapidly when exposed to open flames and release large amounts of toxic fumes, posing a significant fire risk. Furthermore, under the combined forces of deadweight, earthquakes, strong winds, temperature fluctuations, and freeze-thaw cycles, traditional exterior wall insulation systems are susceptible to insulation failure due to bond failure and loose anchors. During an earthquake, large areas of detached insulation could directly injure evacuees or block emergency exits, hindering escape. In strong winds, loose insulation can be completely lifted off by air currents, threatening the safety of vehicles and pedestrians on surrounding roads. Furthermore, damaged exterior walls can directly expose the building's main structure, exacerbating damage from wind and rain erosion. Drastic temperature fluctuations and freeze-thaw cycles cause the insulation material to repeatedly expand and contract, frost heave, and crack, accelerating the aging and failure of the bonding layer, ultimately leading to a chain reaction of hollowing, cracking, and shedding of the insulation layer. Therefore, it is necessary to promote iterative technological upgrades or develop a new generation of alternative solutions.

[0004] Furthermore, with the advancement of industrialization, solid waste pollution is becoming increasingly serious. For example, blast furnace slag, a major byproduct of ironmaking, produces 0.3-1 ton of slag for every ton of pig iron produced. Currently, its comprehensive utilization rate is less than 30%. Large-scale accumulation not only occupies land, but also contains heavy metals and other hazardous substances that leach into the soil, polluting water and air. Waste glass powder, derived from glass manufacturing, processing, and household waste, is chemically stable and difficult to degrade naturally. Long-term accumulation encroaches on ecological space, damages soil structure, and complicates landfill disposal. If this type of solid waste is not properly handled, it will not only increase environmental burdens but also create a vicious cycle of "waste of resources, ecological damage, and rising remediation costs," severely hindering sustainable development. Therefore, it is urgent to reduce, recycle, and harmlessly treat solid waste through technological innovation and the exploration of recycling models, thus forging new paths for green development.

[0005] With the acceleration of industrial production and urbanization, emissions of environmental pollutants such as rhodamine B, nitrogen oxides, and formaldehyde continue to rise. These pollutants not only harm human health but also cause long-term damage to ecosystems. Traditional treatment methods are limited by high costs and low efficiency. Summary of the Invention

[0006] In order to solve the problems of fire, hollowing, cracking and falling in the existing building exterior wall insulation system, as well as the serious solid waste pollution and high emissions of environmental pollutants such as nitrogen oxides and formaldehyde, the present invention proposes a geopolymer insulation composite wall with improved toughness and a construction method.

[0007] The geopolymer thermal insulation composite wall with improved toughness of the present invention is composed of an inner thermal insulation system, a reinforced concrete layer (13) and an outer thermal insulation system; the reinforced concrete layer (13) is arranged between the inner thermal insulation system and the outer thermal insulation system;

[0008] The outer thermal insulation system is composed of, from the outside to the inside, a coating layer (1), a second photocatalytic layer (2), a second outer protective layer (3), a thermal insulation transition layer (5), a second thermal insulation layer (7), a second inner protective layer (9), and a second roughening layer (12); and the inner thermal insulation system is composed of, from the outside to the inside, a first roughening layer (17), a first inner protective layer (18), a first thermal insulation layer (20), a first outer protective layer (21), and a first photocatalytic layer (22).

[0009] The first inner protective layer (18) and the second inner protective layer (9) are both provided with reserved holes, and the first embedded steel bar (10) and the second embedded steel bar (11) are provided in the reserved holes; the first embedded steel bar (10) and the second embedded steel bar (11) are parallel to the first inner protective layer (18) and the second inner protective layer (9); the first embedded steel bar (10) and the second embedded steel bar (11) are perpendicular to each other; the inner surface and the outer surface of the second thermal insulation layer (7) are provided with grooves; the outer surface of the thermal insulation transition layer (5) is provided with a groove, the first embedded part (4) is vertically provided in the second outer protective layer (3) and the end portion is provided in the groove on the outer surface of the thermal insulation transition layer (5), and the first embedded part (4) is an internal threaded sleeve; a bolt is provided in the second photocatalytic layer (2), and the threaded end of the bolt is screwed into the first embedded part (4); a second embedded part (8) is provided in the second inner protective layer (9), and the second embedded part (8) is an embedded nut with a pull ring; the pull ring of the second embedded part (8) is provided in the through hole on the second roughened layer (12); a second embedded part (8) is provided in the first inner protective layer (18), and is an embedded nut with a pull ring; the pull ring of the second embedded part (8) is provided in the through hole on the first roughened layer (17); the function of the pull ring in the second embedded part (8) is to pull the inner thermal insulation system and the outer thermal insulation system together to avoid expansion of the mold when pouring the reinforced concrete layer (13);

[0010] In the inner thermal insulation system, the first thermal insulation layer (20) and the first outer protective layer (21) are connected by a first thermal insulation nail (19), and the threaded end of the first thermal insulation nail (19) sequentially passes through the first outer protective layer (21) and the first thermal insulation layer (20) and is screwed into the second embedded part (8) provided in the first inner protective layer (18); in the outer thermal insulation system, the second outer protective layer (3), the thermal insulation transition layer (5) and the second thermal insulation layer (7) are connected by a second thermal insulation nail (6), and the threaded end of the second thermal insulation nail (6) sequentially passes through the second outer protective layer (3), the thermal insulation transition layer (5) and the second thermal insulation layer (7) and is screwed into the second embedded part (8) provided in the second inner protective layer (9); the first thermal insulation nail (19) plays an auxiliary connection role;

[0011] A tie bar (14), a steel cage and a template tie piece (16) are provided in the reinforced concrete layer (13); the two ends of the tie bar (14) are respectively connected to the tie rings of the second embedded part (8) provided in the second inner protective layer (9) and the first inner protective layer (18); through holes are provided at both ends of the template tie piece (16); the through hole at one end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the first inner protective layer (18), and the through hole at the other end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the second inner protective layer (9); the steel cage is composed of a plurality of steel meshes (15) connected by mesh tie bars, and the steel meshes (15) are perpendicular to the tie bars (14);

[0012] The mixing ratio of the second photocatalytic layer (2) is: blast furnace slag: 757.27-757.37 kg / m 3 Waste glass powder: 252.39~252.49kg / m 3 ; Quartz sand: 454.34~454.44kg / m 3 ; Barium chloride: 5.00~5.10kg / m 3 Sodium gluconate: 10.05-10.15 kg / m 3 Polyacrylamide: 10.05~10.15kg / m 3 ; NaOH particles: 35.11~35.21kg / m 3 ; Sodium silicate solution: 242.37~242.47kg / m 3 Fiber: 19.55~19.65kg / m 3 Water: 267.47~267.57kg / m 3 ; Water reducing agent: 10.05~10.15kg / m 3 ;Nano TiO2: 1.97~2.07kg / m 3 ;

[0013] The mixing ratio of the second outer protective layer (3) and the second inner protective layer (9) is: blast furnace slag: 841.66-841.76 kg / m 3 Waste glass powder: 205.42~205.52kg / m 3 ; Quartz sand: 416.92~417.02kg / m 3 ; Barium chloride: 5.19~5.29kg / m 3 Sodium gluconate: 10.42-10.52 kg / m 3 Polyacrylamide: 10.42~10.52kg / m 3 ; NaOH particles: 36.42~36.52kg / m 3 ; Sodium silicate solution: 251.36~251.46kg / m 3 Fiber: 19.55~19.65kg / m 3 Water: 277.38~277.48kg / m 3 ; Water reducing agent: 10.43~10.53kg / m 3 ;

[0014] The mixing ratio of the thermal insulation transition layer (5) materials is calculated by mass ratio as follows: blast furnace slag: waste glass powder: NaOH particles: sodium silicate solution: water: hydrogen peroxide: calcium stearate: waterproofing agent: sodium gluconate: barium chloride: 150 mesh hollow glass microspheres: 200-300 mesh hollow glass microspheres: PP fiber: 1: 0.333: 0.053: 0.498: 0.185: 0.08: 0.013: 0.003: 0.013: 0.007: 0.043: 0.011: 0.012;

[0015] The mixing ratio of the first thermal insulation layer (20) and the second thermal insulation layer (7) is as follows: blast furnace slag: waste glass powder: rice husk ash: calcium stearate: hydrogen peroxide: barium chloride: sodium gluconate: polyacrylamide: NaOH particles: sodium silicate solution: water: EPS foam particles = 1: 0.333: 0.07: 0.014: 0.14: 0.007: 0.014: 0.014: 0.056: 0.524: 0.366: 0.042 by mass; the heat transfer coefficient of the first thermal insulation layer (20) and the second thermal insulation layer (7) is 0.04077 W / (m·K);

[0016] The mixing ratio of the first inner protective layer (18) and the first outer protective layer (21) is: blast furnace slag: 841.66-841.76 kg / m 3 Waste glass powder: 205.42~205.52kg / m 3 ; Quartz sand: 416.92~417.02kg / m3 ; Barium chloride: 5.19~5.29kg / m 3 Sodium gluconate: 10.42-10.52 kg / m 3 Polyacrylamide: 10.42~10.52kg / m 3 ; NaOH particles: 36.42~36.52kg / m 3 ; Sodium silicate solution: 251.36~251.46kg / m 3 Fiber: 19.55~19.65kg / m 3 Water: 277.38~277.48kg / m 3 ; Water reducing agent: 10.43~10.53kg / m 3 ;

[0017] The mixing ratio of the first photocatalytic layer (22) is: blast furnace slag: 669.28-669.38 kg / m 3 Waste glass powder: 167.29~167.39kg / m 3 ; Quartz sand: 836.61~836.71kg / m 3 ; Barium chloride: 4.13~4.23kg / m 3 Sodium gluconate: 8.32-8.42 kg / m 3 Polyacrylamide: 8.32~8.42kg / m 3 ; NaOH particles: 29.74~29.84kg / m 3 ; Sodium silicate solution: 200.75~200.85kg / m 3 Water: 263.00~263.10kg / m 3 ; Water reducing agent: 12.50~12.60kg / m 3 ; Nano-TiO2: 1.62~1.72kg / m 3 .

[0018] The construction method of the geopolymer thermal insulation composite wall with improved toughness of the present invention is carried out according to the following steps:

[0019] 1. Prefabricate the second thermal insulation layer (7) and the first thermal insulation layer (20), and make grooves on both surfaces of the second thermal insulation layer (7) and the first thermal insulation layer (20), with the groove depth being 10 mm and the groove width being 10 mm;

[0020] The second thermal insulation layer (7) and the first thermal insulation layer (20) have a length of 1200 mm and a width of 600 mm;

[0021] 2. Casting a thermal insulation transition layer (5) on the surface of the second thermal insulation layer (7); and grooving the surface of the thermal insulation transition layer (5) after solidification;

[0022] 3. Install the second insulation nail (6) and the first insulation nail (19), and install the second embedded part (8) at the end of the second insulation nail (6) and the first insulation nail (19);

[0023] Fourth, a second outer protective layer (3) is applied to the surface of the thermal insulation transition layer (5), and during the application process, a first embedded part (4) is installed, with one end of the first embedded part (4) being placed in a groove on the surface of the thermal insulation transition layer (5); 24 hours later, a second inner protective layer (9) is applied to the surface of a second embedded part (8) arranged in the second thermal insulation layer (7), and during the application process, a first embedded steel bar (10) and a second embedded steel bar (11) are embedded in the second inner protective layer (9);

[0024] The first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged in the second inner protective layer (9), and the first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged outside the second inner protective layer (9);

[0025] 5. Applying a first outer protective layer (21) on the surface of the first thermal insulation layer (20), and 24 hours later applying a first inner protective layer (18) on the surface of the second embedded part (8) provided on the first thermal insulation layer (20), and pre-embedding a first embedded steel bar (10) and a second embedded steel bar (11) in the first inner protective layer (18) during the application process;

[0026] The first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged in the first inner protective layer (18), and the first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged outside the first inner protective layer (18);

[0027] 6. After the first inner protective layer (18) and the second inner protective layer (9) are applied for 24 hours, the surface of the second inner protective layer (9) is sandblasted to form a second roughened layer (12), thereby obtaining an outer thermal insulation template;

[0028] Sandblasting is performed on the surface of the first inner protective layer (18) to form a first roughened layer (17) to obtain an inner thermal insulation template; the roughened layer is used to improve the bonding performance between the inner protective layer and the reinforced concrete layer (13);

[0029] During the sand blasting process, river sand with a particle size of 20 to 30 mesh was used, and the sand blasting rate was 0.95 kg / m 2 ;

[0030] 7. Splicing a plurality of inner insulation templates into a plane, inserting the first pre-embedded steel bars (10) and the second pre-embedded steel bars (11) arranged on the outside of the first inner protective layer (18) of the outer insulation template into the reserved holes in the adjacent first inner protective layer (18);

[0031] A plurality of outer insulation templates are spliced into a plane, and a second inner protective layer (9) in the inner insulation template is provided with a first pre-embedded steel bar (10) and a second pre-embedded steel bar (11) on the outside, and inserted into a reserved hole in an adjacent second inner protective layer (9);

[0032] At the same time, the two ends of the tie bar (14) are respectively connected and fixed to the pull rings of the second embedded part (8) provided in the second inner protective layer (9) and the first inner protective layer (18); one end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the first inner protective layer (18), and the other end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the second inner protective layer (9); a plurality of steel meshes (15) are placed between the outer thermal insulation system and the inner thermal insulation system and connected through the mesh tie bars to form a steel cage;

[0033] 8. pouring concrete between the second roughened layer (12) and the first roughened layer (17) to form a reinforced concrete layer (13);

[0034] 9. Prefabricate the second photocatalytic layer (2), and fix the prefabricated second photocatalytic layer (2) to the surface of the second outer protective layer (3) with bolts; the bolts are made of stainless steel;

[0035] Then, a coating layer (1) is sprayed on the surface of the second photocatalytic layer (2); and a first photocatalytic layer (22) is applied on the surface of the first outer protective layer (21).

[0036] The principles and beneficial effects of the present invention are:

[0037] 1. In the geopolymer insulated composite wall with enhanced toughness of the present invention, embedded components are provided within both the outer and inner protective layers of the external insulation system. The embedded components in the inner protective layer of the external insulation system are tied to the embedded components in the inner protective layer of the internal insulation system to prevent mold expansion during pouring. Insulation nails are provided through the insulation layers of the internal and external insulation systems to prevent the insulation layers from falling off during service. The inner protective layers of the internal and external insulation systems are equipped with horizontal and vertical embedded steel bars and pre-reserved holes to ensure that the formwork forms a cohesive whole and can jointly bear construction loads.

[0038] 2. The multiple structural layers of the external insulation system and the internal insulation system of the present invention are prepared using solid waste, thereby reducing environmental pollution, saving resources, lowering costs, and promoting green and sustainable development of the construction industry.

[0039] 3. The photocatalytic layer provided in the present invention has a self-purification function, which can not only decompose indoor pollutants such as formaldehyde to purify the air, but also degrade outdoor atmospheric pollutants and wall stains, effectively reducing environmental and building pollution.

[0040] 4. The new geopolymer insulation composite wall proposed in the present invention can effectively improve the toughness of the building exterior wall insulation system under its own weight, earthquake load, wind load, temperature load, and freeze-thaw environment, achieve the same lifespan as reinforced concrete walls, and ensure long-term stable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 Schematic diagram of the structure of the geopolymer insulation composite wall (cross section) with improved toughness in Example 1;

[0042] Figure 2 Schematic diagram of the structure of the first inner protective layer (18) and the second inner protective layer (9) in Example 1;

[0043] Figure 3 This is a schematic structural diagram of the second embedded part (8) in Example 1, where a is a pull ring.

[0044] Figure 4 Schematic diagram of the distribution of the second photocatalytic layer (2) in Example 1, a is a bolt; DETAILED DESCRIPTION

[0045] The technical solution of the present invention is not limited to the specific implementation methods listed below, but also includes any reasonable combination of the specific implementation methods.

[0046] Specific embodiment 1: The geopolymer thermal insulation composite wall with improved toughness in this embodiment is composed of an inner thermal insulation system, a reinforced concrete layer (13) and an outer thermal insulation system; the reinforced concrete layer (13) is arranged between the inner thermal insulation system and the outer thermal insulation system;

[0047] The outer thermal insulation system is composed of, from the outside to the inside, a coating layer (1), a second photocatalytic layer (2), a second outer protective layer (3), a thermal insulation transition layer (5), a second thermal insulation layer (7), a second inner protective layer (9), and a second roughening layer (12); and the inner thermal insulation system is composed of, from the outside to the inside, a first roughening layer (17), a first inner protective layer (18), a first thermal insulation layer (20), a first outer protective layer (21), and a first photocatalytic layer (22).

[0048] The first inner protective layer (18) and the second inner protective layer (9) are both provided with reserved holes, and the first embedded steel bar (10) and the second embedded steel bar (11) are provided in the reserved holes; the first embedded steel bar (10) and the second embedded steel bar (11) are parallel to the first inner protective layer (18) and the second inner protective layer (9); the first embedded steel bar (10) and the second embedded steel bar (11) are perpendicular to each other; the inner surface and the outer surface of the second thermal insulation layer (7) are provided with grooves; the outer surface of the thermal insulation transition layer (5) is provided with a groove, the first embedded part (4) is vertically provided in the second outer protective layer (3) and the end portion is provided in the groove on the outer surface of the thermal insulation transition layer (5), and the first embedded part (4) is an internal threaded sleeve; a bolt is provided in the second photocatalytic layer (2), and the threaded end of the bolt is screwed into the first embedded part (4); a second embedded part (8) is provided in the second inner protective layer (9), and the second embedded part (8) is an embedded nut with a pull ring; the pull ring of the second embedded part (8) is provided in the through hole on the second roughened layer (12); a second embedded part (8) is provided in the first inner protective layer (18), and is an embedded nut with a pull ring; the pull ring of the second embedded part (8) is provided in the through hole on the first roughened layer (17); the function of the pull ring in the second embedded part (8) is to pull the inner thermal insulation system and the outer thermal insulation system together to avoid expansion of the mold when pouring the reinforced concrete layer (13);

[0049] In the inner thermal insulation system, the first thermal insulation layer (20) and the first outer protective layer (21) are connected by a first thermal insulation nail (19), and the threaded end of the first thermal insulation nail (19) sequentially passes through the first outer protective layer (21) and the first thermal insulation layer (20) and is screwed into the second embedded part (8) provided in the first inner protective layer (18); in the outer thermal insulation system, the second outer protective layer (3), the thermal insulation transition layer (5) and the second thermal insulation layer (7) are connected by a second thermal insulation nail (6), and the threaded end of the second thermal insulation nail (6) sequentially passes through the second outer protective layer (3), the thermal insulation transition layer (5) and the second thermal insulation layer (7) and is screwed into the second embedded part (8) provided in the second inner protective layer (9); the first thermal insulation nail (19) plays an auxiliary connection role;

[0050] A tie bar (14), a steel cage and a template tie piece (16) are provided in the reinforced concrete layer (13); the two ends of the tie bar (14) are respectively connected to the tie rings of the second embedded part (8) provided in the second inner protective layer (9) and the first inner protective layer (18); through holes are provided at both ends of the template tie piece (16); the through hole at one end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the first inner protective layer (18), and the through hole at the other end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the second inner protective layer (9); the steel cage is composed of a plurality of steel meshes (15) connected by mesh tie bars, and the steel meshes (15) are perpendicular to the tie bars (14);

[0051] The mixing ratio of the second photocatalytic layer (2) is: blast furnace slag: 757.27-757.37 kg / m 3 Waste glass powder: 252.39~252.49kg / m 3 ; Quartz sand: 454.34~454.44kg / m 3 ; Barium chloride: 5.00~5.10kg / m 3 Sodium gluconate: 10.05-10.15 kg / m 3 Polyacrylamide: 10.05~10.15kg / m 3 ; NaOH particles: 35.11~35.21kg / m 3 ; Sodium silicate solution: 242.37~242.47kg / m 3 Fiber: 19.55~19.65kg / m 3 Water: 267.47~267.57kg / m 3 ; Water reducing agent: 10.05~10.15kg / m 3 ;Nano TiO2: 1.97~2.07kg / m 3 ;

[0052] The mixing ratio of the second outer protective layer (3) and the second inner protective layer (9) is: blast furnace slag: 841.66-841.76 kg / m 3 Waste glass powder: 205.42~205.52kg / m 3 ; Quartz sand: 416.92~417.02kg / m 3 ; Barium chloride: 5.19~5.29kg / m 3 Sodium gluconate: 10.42-10.52 kg / m 3 Polyacrylamide: 10.42~10.52kg / m 3 ; NaOH particles: 36.42~36.52kg / m3 ; Sodium silicate solution: 251.36~251.46kg / m 3 Fiber: 19.55~19.65kg / m 3 Water: 277.38~277.48kg / m 3 ; Water reducing agent: 10.43~10.53kg / m 3 ;

[0053] The mixing ratio of the thermal insulation transition layer (5) materials is calculated by mass ratio as follows: blast furnace slag: waste glass powder: NaOH particles: sodium silicate solution: water: hydrogen peroxide: calcium stearate: waterproofing agent: sodium gluconate: barium chloride: 150 mesh hollow glass microspheres: 200-300 mesh hollow glass microspheres: PP fiber: 1: 0.333: 0.053: 0.498: 0.185: 0.08: 0.013: 0.003: 0.013: 0.007: 0.043: 0.011: 0.012;

[0054] The mixing ratio of the first thermal insulation layer (20) and the second thermal insulation layer (7) is as follows: blast furnace slag: waste glass powder: rice husk ash: calcium stearate: hydrogen peroxide: barium chloride: sodium gluconate: polyacrylamide: NaOH particles: sodium silicate solution: water: EPS foam particles = 1: 0.333: 0.07: 0.014: 0.14: 0.007: 0.014: 0.014: 0.056: 0.524: 0.366: 0.042 by mass; the heat transfer coefficient of the first thermal insulation layer (20) and the second thermal insulation layer (7) is 0.04077 W / (m·K);

[0055] The mixing ratio of the first inner protective layer (18) and the first outer protective layer (21) is: blast furnace slag: 841.66-841.76 kg / m 3 Waste glass powder: 205.42~205.52kg / m 3 ; Quartz sand: 416.92~417.02kg / m 3 ; Barium chloride: 5.19~5.29kg / m 3 Sodium gluconate: 10.42-10.52 kg / m 3 Polyacrylamide: 10.42~10.52kg / m 3 ; NaOH particles: 36.42~36.52kg / m 3 ; Sodium silicate solution: 251.36~251.46kg / m 3 Fiber: 19.55~19.65kg / m 3 Water: 277.38~277.48kg / m 3 ; Water reducing agent: 10.43~10.53kg / m 3;

[0056] The mixing ratio of the first photocatalytic layer (22) is: blast furnace slag: 669.28-669.38 kg / m 3 Waste glass powder: 167.29~167.39kg / m 3 ; Quartz sand: 836.61~836.71kg / m 3 ; Barium chloride: 4.13~4.23kg / m 3 Sodium gluconate: 8.32-8.42 kg / m 3 Polyacrylamide: 8.32~8.42kg / m 3 ; NaOH particles: 29.74~29.84kg / m 3 ; Sodium silicate solution: 200.75~200.85kg / m 3 Water: 263.00~263.10kg / m 3 ; Water reducing agent: 12.50~12.60kg / m 3 ; Nano-TiO2: 1.62~1.72kg / m 3 .

[0057] This embodiment has the following beneficial effects:

[0058] 1. In this embodiment of the geopolymer insulated composite wall with enhanced toughness, embedded components are installed within both the outer and inner protective layers of the external insulation system. These embedded components in the inner protective layer of the external insulation system are tied to the embedded components in the inner protective layer of the internal insulation system to prevent mold expansion during pouring. Insulation nails are installed through the insulation layers of both the internal and external insulation systems to prevent them from falling off during service. The inner protective layers of both the internal and external insulation systems are equipped with horizontal and vertical embedded steel bars and pre-reserved holes to ensure the formwork is integrated and can jointly bear construction loads.

[0059] 2. In this embodiment, multiple structural layers of the external insulation system and the internal insulation system are prepared using solid waste, thereby reducing environmental pollution, saving resources, lowering costs, and promoting green and sustainable development of the construction industry.

[0060] 3. The photocatalytic layer provided in this embodiment has a self-purification function, which can not only decompose indoor pollutants such as formaldehyde to purify the air, but also degrade outdoor atmospheric pollutants and wall stains, effectively reducing environmental and building pollution.

[0061] 4. The new geopolymer insulation composite wall proposed in this embodiment can effectively improve the toughness of the building exterior wall insulation system under its own weight, earthquake load, wind load, temperature load, and freeze-thaw environment, achieve the same lifespan as reinforced concrete walls, and ensure long-term stable performance.

[0062] Specific embodiment 2: This embodiment differs from specific embodiment 1 in that the particle size of the EPS foam particles is 3mm to 5mm;

[0063] The median particle size of blast furnace slag is 9.3 μm;

[0064] The median particle size of waste glass powder is 12.5 μm;

[0065] The particle size of quartz sand is 70-140 mesh.

[0066] Specific embodiment three: This embodiment differs from specific embodiments one or two in that the fibers in the second photocatalytic layer (2), the second outer protective layer (3), and the first inner protective layer (18) are PE fibers with a length of 12 mm.

[0067] Specific embodiment 4: The difference between this embodiment and any one of specific embodiments 1 to 3 is that the length of the PP fiber in the thermal insulation transition layer (5) is 3 mm.

[0068] Specific embodiment 5: This embodiment differs from any one of specific embodiments 1 to 4 in that the concentration of hydrogen peroxide is 30 wt %.

[0069] Specific embodiment 6: This embodiment differs from any one of specific embodiments 1 to 5 in that the SiO2 content in the sodium silicate solution is 29.99wt%, the Na2O content is 13.75wt%, and the rest is water.

[0070] Specific embodiment seven: This embodiment differs from any one of specific embodiments one to six in that: the coating layer (1) is a colored transparent coating with a thickness of 1 to 2 mm.

[0071] Specific embodiment eight: This embodiment differs from any one of specific embodiments one to seven in that: the thickness of the second photocatalytic layer (2) is 8 to 10 mm, and the width and length are both 300 mm;

[0072] The thickness of the second outer protective layer (3) is 12 to 15 mm;

[0073] The thickness of the second inner protective layer (9) is 15 to 20 mm;

[0074] The thickness of the first inner protective layer (18) is 15 to 20 mm;

[0075] The thickness of the first outer protective layer (21) is 12 to 15 mm;

[0076] The thickness of the first photocatalytic layer (22) is 3 to 5 mm.

[0077] Specific embodiment 9: This embodiment differs from any one of specific embodiments 1 to 8 in that: the diameter of the first embedded steel bar (10) and the second embedded steel bar (11) are 8 to 10 mm, and the length is 150 to 160 mm;

[0078] The tie bars (14) are made of threaded steel bars with a diameter of 8 to 10 mm;

[0079] The first embedded part (4) has an inner diameter of 10 mm and a length of 12 to 15 mm;

[0080] The template tie piece (16) is a steel sheet with a width of 30 to 35 mm and a thickness of 5 to 8 mm.

[0081] Specific embodiment ten: This embodiment

[0082] 1. In this embodiment of the geopolymer insulated composite wall with enhanced toughness, embedded components are installed within both the outer and inner protective layers of the external insulation system. These embedded components in the inner protective layer of the external insulation system are tied to the embedded components in the inner protective layer of the internal insulation system to prevent mold expansion during pouring. Insulation nails are installed through the insulation layers of both the internal and external insulation systems to prevent them from falling off during service. The inner protective layers of both the internal and external insulation systems are equipped with horizontal and vertical embedded steel bars and pre-reserved holes to ensure the formwork is integrated and can jointly bear construction loads.

[0083] 2. In this embodiment, multiple structural layers of the external insulation system and the internal insulation system are prepared using solid waste, thereby reducing environmental pollution, saving resources, lowering costs, and promoting green and sustainable development of the construction industry.

[0084] 3. The photocatalytic layer provided in this embodiment has a self-purification function, which can not only decompose indoor pollutants such as formaldehyde to purify the air, but also degrade outdoor atmospheric pollutants and wall stains, effectively reducing environmental and building pollution.

[0085] 4. The new geopolymer insulation composite wall proposed in this embodiment can effectively improve the toughness of the building exterior wall insulation system under its own weight, earthquake load, wind load, temperature load, and freeze-thaw environment, achieve the same lifespan as reinforced concrete walls, and ensure long-term stable performance.

[0086] The geopolymer thermal insulation composite wall with improved toughness in this embodiment is composed of an inner thermal insulation system, a reinforced concrete layer (13) and an outer thermal insulation system; the reinforced concrete layer (13) is arranged between the inner thermal insulation system and the outer thermal insulation system;

[0087] The outer thermal insulation system is composed of, from the outside to the inside, a coating layer (1), a second photocatalytic layer (2), a second outer protective layer (3), a thermal insulation transition layer (5), a second thermal insulation layer (7), a second inner protective layer (9), and a second roughening layer (12); and the inner thermal insulation system is composed of, from the outside to the inside, a first roughening layer (17), a first inner protective layer (18), a first thermal insulation layer (20), a first outer protective layer (21), and a first photocatalytic layer (22).

[0088] The first inner protective layer (18) and the second inner protective layer (9) are both provided with reserved holes, and the first embedded steel bar (10) and the second embedded steel bar (11) are provided in the reserved holes; the first embedded steel bar (10) and the second embedded steel bar (11) are parallel to the first inner protective layer (18) and the second inner protective layer (9); the first embedded steel bar (10) and the second embedded steel bar (11) are perpendicular to each other; the inner surface and the outer surface of the second thermal insulation layer (7) are provided with grooves; the outer surface of the thermal insulation transition layer (5) is provided with a groove, the first embedded part (4) is vertically provided in the second outer protective layer (3) and the end portion is provided in the groove on the outer surface of the thermal insulation transition layer (5), and the first embedded part (4) is an internal threaded sleeve; a bolt is provided in the second photocatalytic layer (2), and the threaded end of the bolt is screwed into the first embedded part (4); a second embedded part (8) is provided in the second inner protective layer (9), and the second embedded part (8) is an embedded nut with a pull ring; the pull ring of the second embedded part (8) is provided in the through hole on the second roughened layer (12); a second embedded part (8) is provided in the first inner protective layer (18), and is an embedded nut with a pull ring; the pull ring of the second embedded part (8) is provided in the through hole on the first roughened layer (17); the function of the pull ring in the second embedded part (8) is to pull the inner thermal insulation system and the outer thermal insulation system together to avoid expansion of the mold when pouring the reinforced concrete layer (13);

[0089] In the inner thermal insulation system, the first thermal insulation layer (20) and the first outer protective layer (21) are connected by a first thermal insulation nail (19), and the threaded end of the first thermal insulation nail (19) sequentially passes through the first outer protective layer (21) and the first thermal insulation layer (20) and is screwed into the second embedded part (8) provided in the first inner protective layer (18); in the outer thermal insulation system, the second outer protective layer (3), the thermal insulation transition layer (5) and the second thermal insulation layer (7) are connected by a second thermal insulation nail (6), and the threaded end of the second thermal insulation nail (6) sequentially passes through the second outer protective layer (3), the thermal insulation transition layer (5) and the second thermal insulation layer (7) and is screwed into the second embedded part (8) provided in the second inner protective layer (9); the first thermal insulation nail (19) plays an auxiliary connection role;

[0090] A tie bar (14), a steel cage and a template tie piece (16) are provided in the reinforced concrete layer (13); the two ends of the tie bar (14) are respectively connected to the tie rings of the second embedded part (8) provided in the second inner protective layer (9) and the first inner protective layer (18); through holes are provided at both ends of the template tie piece (16); the through hole at one end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the first inner protective layer (18), and the through hole at the other end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the second inner protective layer (9); the steel cage is composed of a plurality of steel meshes (15) connected by mesh tie bars, and the steel meshes (15) are perpendicular to the tie bars (14);

[0091] The mixing ratio of the second photocatalytic layer (2) is: blast furnace slag: 757.32 kg / m 3 Waste glass powder: 252.44kg / m 3 ; Quartz sand: 454.39kg / m 3 ; Barium chloride: 5.05kg / m 3 ; Sodium gluconate: 10.1kg / m 3 ; Polyacrylamide: 10.1kg / m 3 ; NaOH particles: 35.16kg / m 3 ; Sodium silicate solution: 242.42kg / m 3 Fiber: 19.6kg / m 3 ; Water: 267.52kg / m 3 ; Water reducing agent: 10.1kg / m 3 ; Nano-TiO2: 2.02kg / m 3 ;

[0092] The mixing ratio of the second outer protective layer (3) and the second inner protective layer (9) is: blast furnace slag: 841.71 kg / m 3 Waste glass powder: 205.47kg / m 3 ; Quartz sand: 416.97kg / m 3 ; Barium chloride: 5.24kg / m 3 Sodium gluconate: 10.47 kg / m 3 Polyacrylamide: 10.47kg / m 3 ; NaOH particles: 36.47kg / m 3 ; Sodium silicate solution: 251.41kg / m 3 Fiber: 19.6kg / m 3 ; Water: 277.43kg / m 3 ; Water reducing agent: 10.48kg / m 3The bridging effect of PE fibers can control the expansion of cracks, making the material exhibit strain hardening properties and significantly increasing the tensile strain. The tensile strain of the second outer protective layer (3) and the second inner protective layer (9) after 7 days is 5.68%. The tensile strain of commercial concrete C30 after 28 days is about 0.01%. The tensile strain of the second outer protective layer (3) and the second inner protective layer (9) after 7 days is nearly 600 times that of ordinary concrete after 28 days.

[0093] The mixing ratio of the thermal insulation transition layer (5) materials is calculated by mass ratio as follows: blast furnace slag: waste glass powder: NaOH particles: sodium silicate solution: water: hydrogen peroxide: calcium stearate: waterproofing agent: sodium gluconate: barium chloride: 150 mesh hollow glass microspheres: 200-300 mesh hollow glass microspheres: PP fiber: 1: 0.333: 0.053: 0.498: 0.185: 0.08: 0.013: 0.003: 0.013: 0.007: 0.043: 0.011: 0.012;

[0094] The mixing ratio of the first thermal insulation layer (20) and the second thermal insulation layer (7) is calculated by mass as follows: blast furnace slag: waste glass powder: rice husk ash: calcium stearate: hydrogen peroxide: barium chloride: sodium gluconate: polyacrylamide: NaOH particles: sodium silicate solution: water: EPS foam particles = 1: 0.333: 0.07: 0.014: 0.14: 0.007: 0.014: 0.014: 0.056: 0.524: 0.366: 0.042; the heat transfer coefficient of the first thermal insulation layer (20) and the second thermal insulation layer (7) is 0.04077 W / (m·K); the first thermal insulation layer (20) and the second thermal insulation layer (7) are inorganic foamed thermal insulation materials and are prepared from solid waste. A large number of closed pores inside block the heat conduction path, and the static air in the pores serves as the main thermal resistance, reducing solid conduction and air convection, thereby reducing the overall thermal conductivity.

[0095] The mixing ratio of the first inner protective layer (18) and the first outer protective layer (21) is: blast furnace slag: 841.71 kg / m 3 Waste glass powder: 205.47kg / m 3 ; Quartz sand: 416.97kg / m 3 ; Barium chloride: 5.24kg / m 3 Sodium gluconate: 10.47 kg / m 3 Polyacrylamide: 10.47kg / m 3 ; NaOH particles: 36.47kg / m 3 ; Sodium silicate solution: 251.41kg / m 3 Fiber: 19.6kg / m 3 ; Water: 277.43kg / m 3 ; Water reducing agent: 10.48kg / m3 ;

[0096] The mixing ratio of the first photocatalytic layer (22) is: blast furnace slag: 669.33 kg / m 3 Waste glass powder: 167.34kg / m 3 ; Quartz sand: 836.66kg / m 3 ; Barium chloride: 4.18kg / m 3 ; Sodium gluconate: 8.37kg / m 3 ; Polyacrylamide: 8.37kg / m 3 ; NaOH particles: 29.79kg / m 3 ; Sodium silicate solution: 200.80kg / m 3 ; Water: 263.05kg / m 3 ; Water reducing agent: 12.55kg / m 3 ; Nano-TiO2: 1.67kg / m 3 ;

[0097] The particle size of EPS foam particles is 3mm to 5mm;

[0098] The median particle size of blast furnace slag is 9.3 μm;

[0099] The median particle size of waste glass powder is 12.5 μm;

[0100] The particle size of quartz sand is 70-140 mesh;

[0101] The fibers in the second photocatalytic layer (2), the second outer protective layer (3), and the first inner protective layer (18) are PE fibers with a length of 12 mm; the PP fibers in the thermal insulation transition layer (5) are 3 mm in length;

[0102] The concentration of hydrogen peroxide is 30wt%;

[0103] The sodium silicate solution contains 29.99 wt% SiO2 and 13.75 wt% Na2O, with the remainder being water.

[0104] The coating layer (1) is a colored transparent coating with a thickness of 1 to 2 mm; the transparent coating layer has little effect on the photocatalytic effect; the colored transparent coating is a water-based polyurethane coating;

[0105] The thickness of the second photocatalytic layer (2) is 8 to 10 mm; the second photocatalytic layer (2) on the surface of the second outer protective layer (3) is composed of a plurality of pieces, and the width and length of each piece of the second photocatalytic layer (2) are both 300 mm; the plurality of pieces are combined to achieve convenient replacement and rapid repair;

[0106] The thickness of the second outer protective layer (3) is 12 to 15 mm;

[0107] The first embedded part (4) has an inner diameter of 10 mm and a length of 12 to 15 mm;

[0108] The thickness of the second inner protective layer (9) is 15 to 20 mm;

[0109] The diameter of the first embedded steel bar (10) and the second embedded steel bar (11) are 8 to 10 mm, and the length is 150 to 160 mm;

[0110] The tie bars (14) are made of threaded steel bars with a diameter of 8 to 10 mm;

[0111] The template tie sheet (16) is a steel sheet with a width of 30 to 35 mm and a thickness of 5 to 8 mm;

[0112] The thickness of the first inner protective layer (18) is 15 to 20 mm;

[0113] The thickness of the first outer protective layer (21) is 12 to 15 mm;

[0114] The thickness of the first photocatalytic layer (22) is 3 to 5 mm;

[0115] The thicknesses of the thermal insulation transition layer (5), the second thermal insulation layer (7) and the first thermal insulation layer (20) are designed in accordance with building energy-saving standards;

[0116] The construction method of the geopolymer insulation composite wall with enhanced toughness is carried out in the following steps:

[0117] 1. Prefabricate the second thermal insulation layer (7) and the first thermal insulation layer (20), and make grooves on both surfaces of the second thermal insulation layer (7) and the first thermal insulation layer (20), with the groove depth being 10 mm and the groove width being 10 mm;

[0118] The second thermal insulation layer (7) and the first thermal insulation layer (20) have a length of 1200 mm and a width of 600 mm;

[0119] 2. Casting a thermal insulation transition layer (5) on the surface of the second thermal insulation layer (7); and grooving the surface of the thermal insulation transition layer (5) after solidification;

[0120] 3. Install the second insulation nail (6) and the first insulation nail (19), and install the second embedded part (8) at the end of the second insulation nail (6) and the first insulation nail (19);

[0121] Fourth, a second outer protective layer (3) is applied to the surface of the thermal insulation transition layer (5), and during the application process, a first embedded part (4) is installed, with one end of the first embedded part (4) being placed in a groove on the surface of the thermal insulation transition layer (5); 24 hours later, a second inner protective layer (9) is applied to the surface of a second embedded part (8) arranged in the second thermal insulation layer (7), and during the application process, a first embedded steel bar (10) and a second embedded steel bar (11) are embedded in the second inner protective layer (9);

[0122] The first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged in the second inner protective layer (9), and the first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged outside the second inner protective layer (9);

[0123] 5. Applying a first outer protective layer (21) on the surface of the first thermal insulation layer (20), and 24 hours later applying a first inner protective layer (18) on the surface of the second embedded part (8) provided on the first thermal insulation layer (20), and pre-embedding a first embedded steel bar (10) and a second embedded steel bar (11) in the first inner protective layer (18) during the application process;

[0124] The first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged in the first inner protective layer (18), and the first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged outside the first inner protective layer (18);

[0125] 6. After the first inner protective layer (18) and the second inner protective layer (9) are applied for 24 hours, the surface of the second inner protective layer (9) is sandblasted to form a second roughened layer (12), thereby obtaining an outer thermal insulation template;

[0126] Sandblasting is performed on the surface of the first inner protective layer (18) to form a first roughened layer (17) to obtain an inner thermal insulation template; the roughened layer is used to improve the bonding performance between the inner protective layer and the reinforced concrete layer (13);

[0127] During the sand blasting process, river sand with a particle size of 20 to 30 mesh was used, and the sand blasting rate was 0.95 kg / m 2 ;

[0128] 7. Splicing a plurality of inner insulation templates into a plane, inserting the first pre-embedded steel bars (10) and the second pre-embedded steel bars (11) arranged on the outside of the first inner protective layer (18) of the outer insulation template into the reserved holes in the adjacent first inner protective layer (18);

[0129] A plurality of outer insulation templates are spliced into a plane, and a second inner protective layer (9) in the inner insulation template is provided with a first pre-embedded steel bar (10) and a second pre-embedded steel bar (11) on the outside, and inserted into a reserved hole in an adjacent second inner protective layer (9);

[0130] At the same time, the two ends of the tie bar (14) are respectively connected and fixed to the pull rings of the second embedded part (8) provided in the second inner protective layer (9) and the first inner protective layer (18); one end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the first inner protective layer (18), and the other end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the second inner protective layer (9); a plurality of steel meshes (15) are placed between the outer thermal insulation system and the inner thermal insulation system and connected through the mesh tie bars to form a steel cage;

[0131] 8. pouring concrete between the second roughened layer (12) and the first roughened layer (17) to form a reinforced concrete layer (13);

[0132] 9. Prefabricate the second photocatalytic layer (2), and fix the prefabricated second photocatalytic layer (2) to the surface of the second outer protective layer (3) with bolts; the bolts are made of stainless steel;

[0133] Then, a coating layer (1) is sprayed on the surface of the second photocatalytic layer (2); and a first photocatalytic layer (22) is applied on the surface of the first outer protective layer (21).

Claims

1. A geopolymer thermal insulation composite wall with improved toughness, characterized by: The geopolymer thermal insulation composite wall with enhanced toughness is composed of an inner thermal insulation system, a reinforced concrete layer (13) and an outer thermal insulation system; the reinforced concrete layer (13) is arranged between the inner thermal insulation system and the outer thermal insulation system; The outer thermal insulation system is composed of, from the outside to the inside, a coating layer (1), a second photocatalytic layer (2), a second outer protective layer (3), a thermal insulation transition layer (5), a second thermal insulation layer (7), a second inner protective layer (9), and a second roughening layer (12); and the inner thermal insulation system is composed of, from the outside to the inside, a first roughening layer (17), a first inner protective layer (18), a first thermal insulation layer (20), a first outer protective layer (21), and a first photocatalytic layer (22). The first inner protective layer (18) and the second inner protective layer (9) are both provided with reserved holes, and the first embedded steel bar (10) and the second embedded steel bar (11) are provided in the reserved holes; the first embedded steel bar (10) and the second embedded steel bar (11) are parallel to the first inner protective layer (18) and the second inner protective layer (9); the first embedded steel bar (10) and the second embedded steel bar (11) are perpendicular to each other; the inner surface and the outer surface of the second thermal insulation layer (7) are provided with grooves; the outer surface of the thermal insulation transition layer (5) is provided with a groove, the first embedded part (4) is vertically provided in the second outer protective layer (3) and the end portion is provided in the groove on the outer surface of the thermal insulation transition layer (5), and the first embedded part (4) is an internal threaded sleeve; a bolt is provided in the second photocatalytic layer (2), and the threaded end of the bolt is screwed into the first embedded part (4); a second embedded part (8) is provided in the second inner protective layer (9), and the second embedded part (8) is an embedded nut with a pull ring; the pull ring of the second embedded part (8) is provided in the through hole on the second roughened layer (12); a second embedded part (8) is provided in the first inner protective layer (18), and is an embedded nut with a pull ring; the pull ring of the second embedded part (8) is provided in the through hole on the first roughened layer (17); the function of the pull ring in the second embedded part (8) is to pull the inner thermal insulation system and the outer thermal insulation system together to avoid expansion of the mold when pouring the reinforced concrete layer (13); In the inner thermal insulation system, the first thermal insulation layer (20) and the first outer protective layer (21) are connected by a first thermal insulation nail (19), and the threaded end of the first thermal insulation nail (19) sequentially passes through the first outer protective layer (21) and the first thermal insulation layer (20) and is screwed into the second embedded part (8) provided in the first inner protective layer (18); in the outer thermal insulation system, the second outer protective layer (3), the thermal insulation transition layer (5) and the second thermal insulation layer (7) are connected by a second thermal insulation nail (6), and the threaded end of the second thermal insulation nail (6) sequentially passes through the second outer protective layer (3), the thermal insulation transition layer (5) and the second thermal insulation layer (7) and is screwed into the second embedded part (8) provided in the second inner protective layer (9); the first thermal insulation nail (19) plays an auxiliary connection role; A tie bar (14), a steel cage and a template tie piece (16) are provided in the reinforced concrete layer (13); the two ends of the tie bar (14) are respectively connected to the tie rings of the second embedded part (8) provided in the second inner protective layer (9) and the first inner protective layer (18); through holes are provided at both ends of the template tie piece (16); the through hole at one end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the first inner protective layer (18), and the through hole at the other end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the second inner protective layer (9); the steel cage is composed of a plurality of steel meshes (15) connected by mesh tie bars, and the steel meshes (15) are perpendicular to the tie bars (14); The mixing ratio of the second photocatalytic layer (2) is: blast furnace slag: 757.27-757.37 kg / m 3 Waste glass powder: 252.39~252.49kg / m 3 ; Quartz sand: 454.34~454.44kg / m 3 ; Barium chloride: 5.00~5.10kg / m 3 ; Sodium gluconate: 10.05-10.15 kg / m 3 ; Polyacrylamide: 10.05~10.15kg / m 3 ; NaOH particles: 35.11~35.21kg / m 3 ; Sodium silicate solution: 242.37~242.47kg / m 3 ; Fiber: 19.55~19.65kg / m 3 ; Water: 267.47~267.57kg / m 3 ; Water reducing agent: 10.05~10.15kg / m 3 ;Nano TiO2: 1.97~2.07kg / m 3 ; The mixing ratio of the second outer protective layer (3) and the second inner protective layer (9) is: blast furnace slag: 841.66-841.76 kg / m 3 Waste glass powder: 205.42~205.52kg / m 3 ; Quartz sand: 416.92~417.02kg / m 3 ; Barium chloride: 5.19~5.29kg / m 3 ; Sodium gluconate: 10.42-10.52 kg / m 3 ; Polyacrylamide: 10.42~10.52kg / m 3 ; NaOH particles: 36.42~36.52kg / m 3 ; Sodium silicate solution: 251.36~251.46kg / m 3 ; Fiber: 19.55~19.65kg / m 3 ; Water: 277.38~277.48kg / m 3 ; Water reducing agent: 10.43~10.53kg / m 3 ; The mixing ratio of the thermal insulation transition layer (5) materials is calculated by mass ratio as follows: blast furnace slag: waste glass powder: NaOH particles: sodium silicate solution: water: hydrogen peroxide: calcium stearate: waterproofing agent: sodium gluconate: barium chloride: 150 mesh hollow glass microspheres: 200-300 mesh hollow glass microspheres: PP fiber: 1：0.333：0.053：0.498：0.185：0.08：0.013：0.003：0.013：0.007：0.043：0.011：0.012； The mixing ratio of the first thermal insulation layer (20) and the second thermal insulation layer (7) is as follows: blast furnace slag: waste glass powder: rice husk ash: calcium stearate: hydrogen peroxide: barium chloride: sodium gluconate: polyacrylamide: NaOH particles: sodium silicate solution: water: EPS foam particles = 1: 0.333: 0.07: 0.014: 0.14: 0.007: 0.014: 0.014: 0.056: 0.524: 0.366: 0.042 by mass; the heat transfer coefficient of the first thermal insulation layer (20) and the second thermal insulation layer (7) is 0.04077 W / (m·K); The mixing ratio of the first inner protective layer (18) and the first outer protective layer (21) is: blast furnace slag: 841.66-841.76 kg / m 3 Waste glass powder: 205.42~205.52kg / m 3 ; Quartz sand: 416.92~417.02kg / m 3 ; Barium chloride: 5.19~5.29kg / m 3 ; Sodium gluconate: 10.42-10.52 kg / m 3 ; Polyacrylamide: 10.42~10.52kg / m 3 ; NaOH particles: 36.42~36.52kg / m 3 ; Sodium silicate solution: 251.36~251.46kg / m 3 ; Fiber: 19.55~19.65kg / m 3 ; Water: 277.38~277.48kg / m 3 ; Water reducing agent: 10.43~10.53kg / m 3 ; The mixing ratio of the first photocatalytic layer (22) is: blast furnace slag: 669.28-669.38 kg / m 3 Waste glass powder: 167.29~167.39kg / m 3 ; Quartz sand: 836.61~836.71kg / m 3 ; Barium chloride: 4.13~4.23kg / m 3 ; Sodium gluconate: 8.32-8.42 kg / m 3 ; Polyacrylamide: 8.32~8.42kg / m 3 ; NaOH particles: 29.74~29.84kg / m 3 ; Sodium silicate solution: 200.75~200.85kg / m 3 ; Water: 263.00~263.10kg / m 3 ; Water reducing agent: 12.50~12.60kg / m 3 ; Nano-TiO2: 1.62~1.72kg / m 3 .

2. The geopolymer thermal insulation composite wall with enhanced toughness according to claim 1, characterized in that: The particle size of EPS foam particles is 3mm to 5mm; The median particle size of blast furnace slag is 9.3 μm; The median particle size of waste glass powder is 12.5 μm; The particle size of quartz sand is 70-140 mesh.

3. The geopolymer thermal insulation composite wall with enhanced toughness according to claim 1, characterized in that: The fibers in the second photocatalytic layer (2), the second outer protective layer (3), and the first inner protective layer (18) are PE fibers with a length of 12 mm.

4. The geopolymer thermal insulation composite wall with enhanced toughness according to claim 1, characterized in that: The length of the PP fibers in the thermal insulation transition layer (5) is 3 mm.

5. The geopolymer thermal insulation composite wall with enhanced toughness according to claim 1, characterized in that: The concentration of hydrogen peroxide was 30 wt%.

6. The geopolymer thermal insulation composite wall with enhanced toughness according to claim 1, characterized in that: The SiO2 content in the sodium silicate solution is 29.99wt%, the Na2O content is 13.75wt%, and the rest is water.

7. The geopolymer thermal insulation composite wall with enhanced toughness according to claim 1, characterized in that: The coating layer (1) is a colorful transparent coating with a thickness of 1 to 2 mm.

8. The geopolymer thermal insulation composite wall with enhanced toughness according to claim 1, characterized in that: The second photocatalytic layer (2) has a thickness of 8 to 10 mm, and a width and length of 300 mm; The thickness of the second outer protective layer (3) is 12 to 15 mm; The thickness of the second inner protective layer (9) is 15 to 20 mm; The thickness of the first inner protective layer (18) is 15 to 20 mm; The thickness of the first outer protective layer (21) is 12 to 15 mm; The thickness of the first photocatalytic layer (22) is 3 to 5 mm.

9. The geopolymer thermal insulation composite wall with enhanced toughness according to claim 1, characterized in that: The diameter of the first embedded steel bar (10) and the second embedded steel bar (11) are 8 to 10 mm, and the length is 150 to 160 mm; The tie bars (14) are made of threaded steel bars with a diameter of 8 to 10 mm; The first embedded part (4) has an inner diameter of 10 mm and a length of 12 to 15 mm; The template tie piece (16) is a steel sheet with a width of 30 to 35 mm and a thickness of 5 to 8 mm.

10. The construction method for the geopolymer thermal insulation composite wall with improved toughness according to claim 1, characterized in that: The construction method for geopolymer insulation composite walls with improved toughness is carried out in the following steps:

1. Prefabricate the second thermal insulation layer (7) and the first thermal insulation layer (20), and make grooves on both surfaces of the second thermal insulation layer (7) and the first thermal insulation layer (20), with the groove depth being 10 mm and the groove width being 10 mm; The second thermal insulation layer (7) and the first thermal insulation layer (20) have a length of 1200 mm and a width of 600 mm; 2. Casting a thermal insulation transition layer (5) on the surface of the second thermal insulation layer (7); and grooving the surface of the thermal insulation transition layer (5) after solidification; 3. Install the second insulation nail (6) and the first insulation nail (19), and install the second embedded part (8) at the end of the second insulation nail (6) and the first insulation nail (19); Fourth, a second outer protective layer (3) is applied to the surface of the thermal insulation transition layer (5), and during the application process, a first embedded part (4) is installed, with one end of the first embedded part (4) being placed in a groove on the surface of the thermal insulation transition layer (5); 24 hours later, a second inner protective layer (9) is applied to the surface of a second embedded part (8) arranged in the second thermal insulation layer (7), and during the application process, a first embedded steel bar (10) and a second embedded steel bar (11) are embedded in the second inner protective layer (9); The first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged in the second inner protective layer (9), and the first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged outside the second inner protective layer (9); 5. Applying a first outer protective layer (21) on the surface of the first thermal insulation layer (20), and 24 hours later applying a first inner protective layer (18) on the surface of the second embedded part (8) provided on the first thermal insulation layer (20), and pre-embedding a first embedded steel bar (10) and a second embedded steel bar (11) in the first inner protective layer (18) during the application process; The first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged in the first inner protective layer (18), and the first embedded steel bar (10) and the second embedded steel bar (11) are partially arranged outside the first inner protective layer (18); 6. After the first inner protective layer (18) and the second inner protective layer (9) are applied for 24 hours, the surface of the second inner protective layer (9) is sandblasted to form a second roughened layer (12), thereby obtaining an outer thermal insulation template; Sandblasting is performed on the surface of the first inner protective layer (18) to form a first roughened layer (17) to obtain an inner thermal insulation template; the roughened layer is used to improve the bonding performance between the inner protective layer and the reinforced concrete layer (13); During the sandblasting process, river sand with a particle size of 20 to 30 mesh was used, and the sandblasting rate was 0.95 kg / m 2 ; 7. Splicing a plurality of inner insulation templates into a plane, inserting the first pre-embedded steel bars (10) and the second pre-embedded steel bars (11) arranged on the outside of the first inner protective layer (18) of the outer insulation template into the reserved holes in the adjacent first inner protective layer (18); A plurality of outer insulation templates are spliced into a plane, and a second inner protective layer (9) in the inner insulation template is provided with a first pre-embedded steel bar (10) and a second pre-embedded steel bar (11) on the outside, and inserted into a reserved hole in an adjacent second inner protective layer (9); At the same time, the two ends of the tie bar (14) are respectively connected and fixed to the pull rings of the second embedded part (8) provided in the second inner protective layer (9) and the first inner protective layer (18); one end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the first inner protective layer (18), and the other end of the template tie piece (16) is sleeved on the first embedded steel bar (10) or the second embedded steel bar (11) in the second inner protective layer (9); a plurality of steel meshes (15) are placed between the outer thermal insulation system and the inner thermal insulation system and connected through the mesh tie bars to form a steel cage; 8. pouring concrete between the second roughened layer (12) and the first roughened layer (17) to form a reinforced concrete layer (13); 9. Prefabricate the second photocatalytic layer (2), and fix the prefabricated second photocatalytic layer (2) to the surface of the second outer protective layer (3) with bolts made of stainless steel; Then, a coating layer (1) is sprayed on the surface of the second photocatalytic layer (2); and a first photocatalytic layer (22) is applied on the surface of the first outer protective layer (21).

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