Construction method of floating building type heat preservation and sound insulation building floor

Abstract

The invention discloses a floating building type heat preservation and sound insulation floor construction method, belongs to the technical field of heat preservation and sound insulation floors, and solves the technical problems of heat preservation and sound insulation of floors. The construction method comprises the following steps that 1, the surface of the building floor is cleaned; 2, determining an acoustic bridge part and a thermal bridge part of the building floor, and arranging heat preservation and sound insulation parts at the acoustic bridge part and the thermal bridge part; 3, an elastic anti-vibration pad is laid on the top of the building ground; 4, heat preservation and sound insulation mortar is laid on the top of the building ground, and the elastic damping pad is completely covered with the heat preservation and sound insulation mortar; and 5, after the heat preservation and sound insulation mortar is laid, fine aggregate concrete is laid on the top of the heat preservation and sound insulation mortar. The thermal insulation and sound insulation parts are arranged at the sound bridge part and the heat bridge part, and the elastic anti-vibration pad, the thermal insulation and sound insulation mortar and the fine aggregate concrete are sequentially laid on the floor to form a sandwich structure, so that the thermal insulation and sound insulation performance of the floor can be effectively improved, and the impact sound pressure level is lower than 50dB.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal insulation and sound insulation floors, and more specifically, it relates to a construction method for a floating thermal insulation and sound insulation floor Background Art

[0002] At present, thermal insulation treatment of building exterior walls has become a common means internationally. For buildings with central heating or cooling, the building energy efficiency level can be improved by enhancing the thermal insulation performance of the exterior walls. However, for buildings with household heating or cooling, due to different temperature requirements of different households, a large temperature difference is generated between floors, resulting in heat transfer and loss between floors. It can be seen that although improving the thermal insulation level of the exterior wall is beneficial to reducing energy consumption, the temperature difference between different floors will still cause energy loss and waste. Therefore, it is necessary to perform thermal insulation treatment on the floor

[0003] In addition, as a building component separating different households, the sound insulation performance of the floor has a very important impact on neighbor relations. The sounds of dragging furniture, children running and jumping, and high heels knocking on the floor by upper - floor households have a great impact on lower - floor households. Therefore, it is necessary to improve the impact sound insulation performance of the floor slab Summary of the Invention

[0004] The technical problem to be solved by the present invention is in view of the above - mentioned deficiencies of the prior art. The object of the present invention is to provide a construction method for a floating thermal insulation and sound insulation floor that can improve the thermal insulation and sound insulation performance

[0005] The technical solution of the present invention is: A construction method for a floating thermal insulation and sound insulation floor includes the following steps

[0006] Step 1. Clean the surface of the floor

[0007] Step 2. Determine the sound - bridge parts and thermal - bridge parts of the floor, and set thermal insulation and sound insulation components at the sound - bridge parts and thermal - bridge parts

[0008] Step 3. Lay an elastic shock - absorbing pad on the top of the floor

[0009] Step 4. Lay thermal insulation and sound insulation mortar on the top of the floor, and the thermal insulation and sound insulation mortar completely covers the elastic shock - absorbing pad

[0010] As a further improvement, in Step 1, the cleaning treatment includes sweeping the garbage and dirt on the floor, and leveling the raised parts of the floor

[0011] Further, the elastic damping pad is made of rubber material. The top of the elastic damping pad is covered with protrusions. One side edge of the elastic damping pad is provided with engaging convex plates arranged at intervals, and the other side edge of the elastic damping pad is provided with engaging grooves adapted to the engaging convex plates.

[0012] Further, the thickness of the elastic damping pad is 5 - 10 mm.

[0013] Further, the thermal insulation and sound insulation mortar includes: 40 - 45% of cement, 8 - 12% of waste rubber powder, 6 - 10% of polystyrene particles, 15 - 20% of bottom slag, 2 - 5% of sawdust, 2 - 5% of EVA particles, 4 - 6% of polymer emulsion, 1 - 2% of nano - silica, and 18 - 22% of water.

[0014] Further, the preparation of the thermal insulation and sound insulation mortar includes the following steps:

[0015] Step 11. First, use a mixer to evenly stir the cement and bottom slag, then add the rubber powder and polystyrene particles and stir evenly, and finally add the sawdust and EVA particles and stir evenly;

[0016] Step 12. Add the polymer emulsion and water and stir evenly;

[0017] Step 13. Add the nano - silica and stir evenly.

[0018] Further, in Step 12 and Step 13, vacuum stirring is adopted, the vacuum pressure ≤ - 0.08 MPa, and the stirring time ≥ 8 min.

[0019] Further, in Step 4, the thermal insulation and sound insulation mortar is laid in layers. The thickness of each layer ≤ 20 mm, with an interval of 24 h, and the total thickness is 40 - 60 mm; natural curing is not less than 7 days, and the curing humidity ≥ 90%.

[0020] Further, it also includes Step 5. After the thermal insulation and sound insulation mortar is laid, fine aggregate concrete is laid on the top of the thermal insulation and sound insulation mortar, and a wire mesh sheet is provided in the fine aggregate concrete.

[0021] Further, the joints between the floor and the wall, ring beam, and load - bearing beam are sound - bridge parts and heat - bridge parts. The thermal insulation and sound insulation member is located between the floor and the wall, ring beam, and load - bearing beam. The thermal insulation and sound insulation member includes a heat - insulation sheet and a sound - insulation sheet.

[0022] Beneficial effects

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] The present invention can effectively improve the thermal insulation and sound insulation performance of the floor by setting thermal insulation and sound insulation components at the sound bridge and thermal bridge parts, and successively laying an elastic shock-absorbing pad, thermal insulation and sound insulation mortar, and fine aggregate concrete on the floor to form a sandwich structure, achieving an impact sound pressure level lower than 50 dB. Moreover, the preparation of the thermal insulation and sound insulation mortar can realize the large-scale application of industrial by-products or solid waste such as waste rubber powder, waste polystyrene particles, bottom slag of furnace, and sawdust. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a flow chart of the present invention;

[0026] Figure 2 is a schematic structural diagram of the floor constructed by the present invention;

[0027] Figure 3 is a cross-sectional view of the elastic shock-absorbing pad in the present invention;

[0028] Figure 4 is a top view of the elastic shock-absorbing pad in the present invention.

[0029] Wherein: 1 - floor, 2 - thermal insulation and sound insulation component, 3 - elastic shock-absorbing pad, 4 - thermal insulation and sound insulation mortar, 5 - raised part, 6 - engaging convex plate, 7 - engaging groove, 8 - fine aggregate concrete, 9 - wire mesh, 10 - wall, 11 - heat insulation sheet, 12 - sound insulation sheet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following further describes the present invention with reference to the specific embodiments in the drawings.

[0031] Refer to Figures 1 to 4 , a construction method for a floating thermal insulation and sound insulation floor, comprising the following steps:

[0032] Step 1. Clean the surface of the floor 1;

[0033] Step 2. Determine the sound bridge part and thermal bridge part of the floor 1, and set the thermal insulation and sound insulation component 2 at the sound bridge part and thermal bridge part;

[0034] Step 3. Lay the elastic shock-absorbing pad 3 on the top of the floor 1;

[0035] Step 4. Lay the thermal insulation and sound insulation mortar 4 on the top of the floor 1, and the thermal insulation and sound insulation mortar 4 completely covers the elastic shock-absorbing pad 3.

[0036] In Step 1, the cleaning treatment includes sweeping the garbage and soil on the floor 1, and leveling the raised parts of the floor 1 to facilitate the subsequent laying work.

[0037] The elastic damping pad 3 is made of rubber material. The top of the elastic damping pad 3 is covered with raised portions 5. On the one hand, it can ensure the damping effect. On the other hand, the raised portions 5 can increase the contact area with the thermal insulation and sound insulation mortar 4, making the contact connection more stable. One side edge of the elastic damping pad 3 is provided with engaging convex plates 6 arranged at intervals, and the other side edge of the elastic damping pad 3 is provided with an engaging groove 7 adapted to the engaging convex plates 6. During actual installation, the engaging convex plates 6 of one elastic damping pad 3 are snapped into the engaging grooves 7 of another elastic damping pad 3, which is convenient for positioning and installation.

[0038] Preferably, the thickness of the elastic damping pad 3 is 5 - 10 mm.

[0039] In this embodiment, the thermal insulation and sound insulation mortar 4 includes: 40 - 45% cement, 8 - 12% waste rubber powder, 6 - 10% polystyrene particles, 15 - 20% bottom slag, 2 - 5% sawdust, 2 - 5% EVA particles, 4 - 6% polymer emulsion, 1 - 2% nano-silica, 18 - 22% water, and the water-cement ratio is controlled at 0.45 - 0.55. The waste rubber powder can damp sound and reduce the thermal conductivity. The polystyrene particles can provide closed-cell thermal insulation and have the advantage of light weight. The bottom slag can form a microporous structure to enhance sound absorption. The EVA waste can provide flexible bonding and crack resistance. The polymer emulsion can modify the interface and improve the bonding strength. The cement serves as a cementitious skeleton to provide strength. The nano-silica serves as a nano-reinforcing phase to enhance the strength of the thermal insulation and sound insulation mortar, enabling the mortar to obtain high strength at low density.

[0040] Preferably, the thermal insulation and sound insulation mortar 4 includes: 40% cement, 9% waste rubber powder, 8% polystyrene particles, 13% bottom slag, 3% sawdust, 3% EVA particles, 5% polymer emulsion, 1% nano-silica.

[0041] Among them, the particle size range of the waste rubber powder is 0.5 - 1.5 mm, the particle size range of the polystyrene particles is 1 - 3 mm. The bottom slag needs to be subjected to magnetic separation for iron removal and screening, and its particle size range is 0.1 - 0.2 mm. The sawdust needs to be treated with alkali solution (5% NaOH) for anti-corrosion to toughen the fibers and adjust the pores.

[0042] The preparation of the thermal insulation and sound insulation mortar 4 includes the following steps:

[0043] Step 11. First, use a mixer to stir the cement and the bottom slag evenly, then add the rubber powder and the polystyrene particles and stir evenly, and finally add the sawdust and the EVA particles and stir evenly;

[0044] Step 12. Add the polymer emulsion and water and stir evenly;

[0045] Step 13. Add the nano-silica and stir evenly, mainly to improve the stirring uniformity.

[0046] In steps 12 and 13, vacuum stirring is adopted, the vacuum pressure ≤ -0.08 MPa, and the stirring time ≥ 8 min. Vacuum stirring is used to prevent the thermal insulation and sound insulation mortar 4 from generating large bubbles, which may affect the working strength.

[0047] In step 4, the thermal insulation and sound insulation mortar 4 is laid in layers. The thickness of each layer ≤ 20 mm, with an interval of 24 h, and the total thickness is 40 - 60 mm; natural curing is not less than 7 days, and the curing humidity ≥ 90%. Laying in layers can make the thickness of each layer uniform and avoid quality problems such as uneven thickness and dry shrinkage cracks caused by too large a construction volume at one time.

[0048] Furthermore, this construction method also includes step 5. After the thermal insulation and sound insulation mortar 4 is laid, fine aggregate concrete 8 is laid on the top of the thermal insulation and sound insulation mortar 4. A wire mesh sheet 9 is provided in the fine aggregate concrete 8 to improve the bonding strength and working strength of the fine aggregate concrete 8. The strength of the fine aggregate concrete 8 is not less than C25, and the formula of the fine aggregate concrete includes cement, sand, fine aggregate, and water. For example, if the formula of the fine aggregate concrete 8 is cement:sand:stone:water = 1:0.47:1.59:3.39, the proportion of cement can be appropriately increased to enhance the strength of the fine aggregate concrete 8. The fine aggregate concrete 8 serves as the working layer of the floor 1, with high hardness and good wear resistance, and can effectively protect the thermal insulation and sound insulation mortar at the same time.

[0049] The joints between the floor 1 and the wall 10, ring beam, and load-bearing beam are sound bridge parts and heat bridge parts. The thermal insulation and sound insulation member 2 is located between the floor 1 and the wall 10, ring beam, and load-bearing beam. The thermal insulation and sound insulation member 2 includes a heat insulation sheet 11 and a sound insulation sheet 12. The heat insulation sheet 11 is made of heat insulation material, and the sound insulation sheet 12 is made of sound insulation material. The numbers of the heat insulation sheet 11 and the sound insulation sheet 12 are both multiple, and the heat insulation sheet 11 and the sound insulation sheet 12 are arranged at intervals in turn. The thermal insulation and sound insulation member 2 is fixed between the floor 1 and the wall 10, ring beam, and load-bearing beam through the elastic vibration damping pad 3, thermal insulation and sound insulation mortar 4, and fine aggregate concrete 8, as Figure 2 shown.

[0050] The floor 1 constructed by the present invention can achieve the integration of thermal insulation and sound insulation functions, and greatly improve the thermal insulation and sound insulation functions of the floor; at the same time, it can also realize the large-scale application of industrial by-products or solid wastes such as waste rubber powder, waste polystyrene particles, bottom slag of furnace, and sawdust.

[0051] The above is only the preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, which will not affect the implementation effect of the present invention and the practicality of the patent.

Claims

1. A construction method for a floating thermal insulation and sound insulation floor, characterized in that, It includes the following steps: Step 1. Clean the surface of the floor (1); Step 2. Determine the sound bridge parts and thermal bridge parts of the floor (1), and set heat-insulating and sound-insulating members (2) at the sound bridge parts and thermal bridge parts; Step 3. Lay an elastic damping pad (3) on the top of the floor (1); Step 4. Lay heat-insulating and sound-insulating mortar (4) on the top of the floor (1), and the heat-insulating and sound-insulating mortar (4) completely covers the elastic damping pad (3).

2. The construction method of a floating thermal insulation and sound insulation floor according to claim 1, characterized in that In Step 1, the cleaning treatment includes sweeping the garbage and soil on the floor (1), and leveling the raised parts of the floor (1).

3. The construction method of a floating type thermal insulation and sound insulation floor according to claim 1, characterized in that, The elastic damping pad (3) is made of rubber material. The top of the elastic damping pad (3) is covered with raised parts (5). One side edge of the elastic damping pad (3) is provided with engaging convex plates (6) arranged at intervals, and the other side edge of the elastic damping pad (3) is provided with engaging grooves (7) adapted to the engaging convex plates (6).

4. The construction method of a floating type thermal insulation and sound insulation floor according to claim 3, characterized in that, The thickness of the elastic damping pad (3) is 5 - 10 mm.

5. A floating thermal insulation and sound insulation floor construction method according to claim 1, characterized in that, The heat-insulating and sound-insulating mortar (4) includes: 40 - 45% of cement, 8 - 12% of waste rubber powder, 6 - 10% of polystyrene particles, 15 - 20% of bottom slag of furnace, 2 - 5% of sawdust, 2 - 5% of EVA particles, 4 - 6% of polymer emulsion, 1 - 2% of nano-silica, 18 - 22% of water.

6. The construction method of a floating type thermal insulation and sound insulation floor according to claim 5, characterized in that, The preparation of the heat-insulating and sound-insulating mortar (4) includes the following steps: Step 11. First, use a mixer to stir the cement and bottom slag of furnace evenly, then add the rubber powder and polystyrene particles and stir evenly, and finally add the sawdust and EVA particles and stir evenly; Step 12. Add the polymer emulsion and water and stir evenly; Step 13. Add the nano-silica and stir evenly.

7. A construction method for a floating thermal insulation and sound insulation floor according to claim 6, characterized in that, In Step 12 and Step 13, vacuum stirring is adopted, the vacuum pressure ≤ -0.08 MPa, and the stirring time ≥ 8 min.

8. A construction method of a floating thermal insulation and sound insulation floor according to claim 1, characterized in that In Step 4, the heat-insulating and sound-insulating mortar (4) is laid in layers, the thickness of each layer ≤ 20 mm, with an interval of 24 h, and the total thickness is 40 - 60 mm; natural curing is not less than 7 days, and the curing humidity ≥ 90%.

9. The construction method of a floating type thermal insulation and sound insulation floor slab according to claim 1, characterized in that, It also includes Step 5. After the heat-insulating and sound-insulating mortar (4) is laid, fine aggregate concrete (8) is laid on the top of the heat-insulating and sound-insulating mortar (4), and a wire mesh sheet (9) is arranged in the fine aggregate concrete (8).

10. A floating type thermal insulation and sound insulation floor construction method according to claim 1, characterized in that, The joints of the floor (1) with the wall (10), ring beam, and bearing beam are sound bridge parts and thermal bridge parts. The heat-insulating and sound-insulating member (2) is located between the floor (1) and the wall (10), ring beam, and bearing beam. The heat-insulating and sound-insulating member (2) includes a heat-insulating sheet (11) and a sound-insulating sheet (12).

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