Cold-applied cementitious material and method of making and use thereof

Abstract

The present application relates to the technical field of cement-based building materials, and particularly relates to a cold construction cement-based cementitious material and a preparation method and application thereof, which comprises the following steps: adopting composite cement and superfine mineral admixture, adding a fast hardening agent, a synergist and a nano C-S-H crystal nucleus to form a hydration system, and adjusting the composition of raw materials, cooperating with a water reducing agent, an internal curing agent and a retarder as an admixture, so as to prepare the cold construction cement-based cementitious material which can be used for construction under a low negative temperature environment, and the problem of slow performance development of the cementitious material under the condition of-20 to-30 DEG C can be solved, the cold construction technology can avoid the use of additional heat preservation measures on site, and can be used for building operation activities under an ultralow temperature environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cement-based building materials, in particular to a cold construction cement-based cementitious material and a preparation method and application thereof. BACKGROUND

[0002] High altitude and high cold regions are low negative temperature environments, among which the minimum monthly average temperature in cold regions is-10℃-0℃, and even ≤-10℃ in severe cold regions. Cementitious material is a key component of ultra-low temperature concrete preparation, and the early performance development of cementitious material determines the application effect of ultra-low temperature concrete. In winter in the above-mentioned cold regions, long-term low temperature has a great impact on the preparation and construction of concrete, mainly manifested in that the freezing of the mixed solution hinders the mixing of materials and the freezing of the paste destroys the structure development, resulting in reduced strength and poor durability.

[0003] Antifreeze and cementitious material are two key factors for the preparation of ultra-low temperature concrete. For existing patent technologies for negative temperature concrete construction, it is necessary to use different types of antifreeze. Commonly used chlorides and nitrate salts (CN103496907A) antifreeze can significantly affect the durability of reinforced concrete. Although the effect of organic antifreeze is slightly worse than that of chlorides and nitrate salts, it has little effect on the durability of concrete.

[0004] Material preheating, hot water mixing or steam curing, and superplasticizer for accelerating and enhancing are the main technical methods currently adopted for winter construction, which have high cost and complicated process. Cold construction technology, except for the need for additional antifreeze measures for the solution, is the same as normal temperature construction technology, which can significantly improve the construction efficiency in low negative temperature environments and is suitable for cold regions such as northeast China and northwest plateau. Mixing solution is the key to cold construction technology, which not only ensures that the solution itself and the mixed sample do not freeze in negative temperature environments, but also triggers the cement hydration reaction and supports the continuous reaction. Suitable antifreeze can achieve the above effects.

[0005] Cementitious material is the main contributor to the strength development of concrete. Selecting cementitious material with high early heat release and fast reaction rate, such as sulphoaluminate cement, aluminate cement, phosphate cement and alkali-activated cementitious material, can solve the problem of ultra-low temperature concrete preparation and construction with the assistance of organic antifreeze and chemical admixtures. At the same time, cold construction technology can be used to avoid additional on-site insulation measures, which can significantly save construction period and construction cost.

[0006] However, the prior art can only solve the construction problem in low temperature environment above-10 DEG C, and needs to add antifreeze, adopt heat preservation and other measures, and cannot be constructed in lower temperature environment such as-20 DEG C or so, although the prior art CN116854438A discloses a kind of wind power steel tower for ultra-low temperature seat slurry, which can be constructed in-20 DEG C condition, however, it is suitable for wind power foundation installation, the slurry has no fluidity, and is not suitable for other engineering construction occasions, and the specific preparation method of important component amorphous calcium aluminate is not disclosed, the price of high belite sulphoaluminate cement is high, and whether it can meet the construction needs in lower temperature below-20 DEG C still needs further innovation. SUMMARY

[0007] To solve the problems in the prior art, the present application provides a kind of cold construction cement-based adhesive material and its preparation method and application, specifically, the present application adopts composite cement and superfine mineral admixture, and adds fast hardening agent, synergist, nano C-S-H crystal nucleus to form hydration system, and by adjusting the composition of raw materials, water reducing agent, internal curing agent, retarder are used as admixtures, a kind of cold construction cement-based adhesive material suitable for low negative temperature environment construction is prepared, which can solve the problem of slow performance development of adhesive material under-20 to-30 DEG C conditions, and the cold construction technology can avoid the use of additional heat preservation measures on site, and can be used for building operation in ultra-low temperature environment.

[0008] Specifically, the cold construction cement-based adhesive material of the present application is composed of solid phase material and liquid phase material in a mass ratio of (8-12):3.

[0009] Preferably, the solid phase material is composed of the following raw materials in parts by weight: cement 40-60 parts, fast hardening agent 1-20 parts, superfine mineral admixture 1-20 parts, synergist 0.1-10 parts, nano C-S-H crystal nucleus 0.1-10 parts, water reducing agent 0.01-0.2 parts, internal curing agent 0.01-0.3 parts, and retarder 0.02-0.5 parts.

[0010] More preferably, the solid phase material is composed of the following raw materials in parts by weight: cement 40-60 parts, fast hardening agent 10-20 parts, superfine mineral admixture 10-20 parts, synergist 1-10 parts, nano C-S-H crystal nucleus 1-10 parts, water reducing agent 0.1-0.2 parts, internal curing agent 0.1-0.3 parts, and retarder 0.2-0.5 parts.

[0011] Preferably, the cement is a mixture of ground 72.5 grade sulphoaluminate cement and ground 52.5 grade white portland cement in a mass ratio of (5-6.5):(3.5-5.5).

[0012] More preferably, the specific surface area of the ground 72.5 grade sulphoaluminate cement is 650-700 m 2 / kg, the content of anhydrous calcium sulphoaluminate is not less than 65%, and the content of belite is not higher than 25%.

[0013] More preferably, the specific surface area of the ground 52.5 grade white portland cement is 550-650 m 2 / kg, the content of belite is not higher than 15%.

[0014] The present application adopts composite cement as the main cementitious material, the early hydration heat release rate of the ground 72.5 grade sulphoaluminate cement is high, and the hydration of the ground 52.5 grade white portland cement improves the alkalinity of the hardened paste, and promotes the low-temperature hydration of belite in the sulphoaluminate cement.

[0015] Preferably, the fast-hardening agent is a mixture with a mass ratio of (7-7.5):(2.5-3.5).

[0016] More preferably, the specific surface area of the fast-hardening agent is 800-850 cm 2 / g. The preparation process of the amorphous calcium aluminate mineral is as follows: CaO and Al2O3 are uniformly mixed in a mass ratio of 1:0.9-1.2, calcined at 1500-1700 DEG C, then the molten liquid phase is cooled to 1180-1200 DEG C by compressed air, and then cooled to room temperature by water, and finally ground to 450-500 cm 2 / g. The mineral prepared by the special preparation process of the present application is an amorphous substance, which is different from the calcium aluminate C3A, C 12 A7 and the like used in the prior art, which are all crystalline substances. The preparation process of the present application can make the calcium aluminate reach the purpose of amorphous state, and the amorphous rate is more than 95%. The amorphous substance has higher activity and higher hydration activity than the corresponding crystalline substance due to the irregular internal crystal arrangement and long-range disorder structure.

[0017] More preferably, the fast-hardening agent is obtained by mixing the amorphous calcium aluminate mineral and anhydrite in a certain proportion and then superfine grinding by an air flow mill.

[0018] Preferably, the superfine mineral admixture is a mixture of mineral powder and calcined coal gangue with a mass ratio of (6-6.5):(3.5-4.5).

[0019] Preferably, the calcined coal gangue is calcined at a temperature of 800-850 DEG C. The coal gangue has high reactivity after high-temperature calcination, and has good early activity after being compounded with the mineral powder.

[0020] More preferably, the specific surface area of the superfine mineral admixture is 1000 cm 2 / g. More preferably, the superfine mineral admixture is prepared by air flow milling.

[0021] Preferably, the synergist is superfine alumina residue powder.

[0022] More preferably, the superfine alumina residue powder is prepared by grinding alumina residue powder to a specific surface area of 700-800 cm 2 / g, and then obtained. The addition of the superfine alumina residue powder prepared by grinding to the cementitious material system can enhance the cementitious material system in two ways: first, the superfine alumina residue powder has a small particle size and a large specific surface area, which can fill the cementitious gap, making the hardened paste more compact; second, in the early hydration of the amorphous calcium aluminate mineral and anhydrite binary cementitious system, the superfine alumina residue powder reacts with free water in the cementitious system to generate hydrated calcium aluminate gel products at high temperatures, thereby promoting the development of the early mechanical properties of the hydrated paste.

[0023] Preferably, the C-S-H crystal nucleus is a polymer co-precipitation synthesized nanomaterial.

[0024] Preferably, the water reducing agent is a polycarboxylic acid water reducing agent, and more preferably, the water reducing agent is a powder.

[0025] Preferably, the internal curing material is SAP water-absorbing resin particles with a particle size of 0.1-0.3 mm.

[0026] Preferably, the retarder is a mixture of tartaric acid and boric acid in a mass ratio of 1: (1.0-1.5).

[0027] Preferably, the liquid phase material is a mixture of methanol, ethylene glycol, and water in a mass ratio of 1:3: (6-10). The addition of methanol and ethylene glycol can fully ensure that the mixing solution composed of the two and water can trigger the cement hydration reaction at-30℃ and support the continuous reaction.

[0028] The present application also relates to a preparation method of the cold construction cement-based cementitious material, and specifically includes the following steps:

[0029] 1) weighing each raw material by mass,

[0030] 2) mixing each raw material to obtain a liquid phase material and a solid phase material, respectively,

[0031] 3) mixing the liquid phase material and the solid phase material uniformly, and then obtained.

[0032] The present application also relates to the application of the cold construction cement-based cementitious material in low negative temperature environment construction, and preferably, the low negative temperature environment is-20 to-30℃.

[0033] The present application has the following technical advantages:

[0034] 1) adopt grinding 72.5 grade sulphoaluminate cement and grinding 52.5 grade white Portland cement as main cementitious material, cooperate with mineral powder and calcined coal gangue as superfine mineral admixture, auxiliary with quick hardening agent composed of amorphous calcium aluminate mineral and anhydrite, superfine alumina slag powder as synergist, and add C-S-H crystal nucleus, provide sufficient hydration components and promoting components;

[0035] 2) adopt water reducing agent to reduce water consumption, add internal curing agent to realize hydration process continuous water supply, and retarder can adjust setting time to meet the construction performance of cementitious material;

[0036] 3) adopt methanol and ethylene glycol to modify water to obtain liquid phase material, which can fully ensure that the cement hydration reaction can be triggered at-30℃ and can support the reaction to continue;

[0037] 4) the preparation process of the cold construction cement-based cementitious material is simple, convenient to store and reliable in construction;

[0038] 5) the cold construction cement-based cementitious material can meet the construction needs in the environment below-20℃, without the need for insulation measures and the addition of antifreeze components, and without harmful components such as chloride ions. PREFERRED EMBODIMENT

[0039] To characterize the technical effect of the present application, a cold construction cement-based cementitious material is prepared, and its performance is detected. Among them, the initial fluidity detection environment temperature is set to-25℃, the test piece is shaped and cured to the specified age for compressive strength and flexural strength detection, -1d indicates curing for 1d in-25℃ environment, -3d indicates curing for 3d in-25℃ environment, -7d+21d indicates curing for 7d in-25℃ environment and then transferring to standard condition curing for 21d.

[0040] In the raw materials used, the specific surface area of the ground 72.5 grade sulphoaluminate cement is 680m 2 / kg, the specific surface area of the ground 52.5 grade white Portland cement is 600m 2 / kg, the specific surface area of the quick hardening agent is 800cm 2 / g, the preparation process of the amorphous calcium aluminate mineral is: uniformly mix CaO and Al2O3 in a mass ratio of 1:1.1, calcine at 1700℃, then cool the molten liquid phase to 1200℃ by compressed air, and then cool to room temperature with water, and grind to 490cm 2 / g, namely, the specific surface area of the superfine mineral admixture is 1000cm 2 / g, the specific surface area of the superfine alumina slag powder is 780cm 2 / g, the water reducing agent is a polycarboxylic acid powder water reducing agent, and the internal curing material is a SAP water absorbing resin particle with a particle size of 0.1-0.3mm.

[0041] Example 1

[0042] The cold construction cement-based cementitious material is composed of solid phase material and liquid phase material in a mass ratio of 12:3;

[0043] The solid phase material is composed of the following raw materials in parts by weight: cement 50 parts, fast hardening agent 18 parts, super-fine mineral admixture 16 parts, synergist 10 parts, nano C-S-H crystal nucleus 7 parts, water reducing agent 0.12 parts, internal curing agent 0.1 parts, retarder 0.3 parts, the cement is a mixture of finely ground 72.5 grade sulphoaluminate cement and finely ground 52.5 grade white portland cement in a mass ratio of 6.5:3.5, the fast hardening agent is a mixture of non-crystalline calcium aluminate mineral and anhydrite in a mass ratio of 7.5:2.5, the super-fine mineral admixture is a mixture of mineral powder and calcined coal gangue in a mass ratio of 6:4, the synergist is super-fine alumina residue powder, and the retarder is a mixture of tartaric acid and boric acid in a mass ratio of 1:1.1;

[0044] The liquid phase material is a mixture of methanol, ethylene glycol and water in a mass ratio of 1:3:10.

[0045] It is detected that the initial fluidity of the slurry is 252 mm, the workability is good, the -1d compressive strength is 23.5 MPa, the -3d compressive strength is 42.6 MPa, the -7d+21d compressive strength is 78.4 MPa, and the -7d+21d flexural strength is 8.4 MPa under the condition of -25℃.

[0046] Example 2

[0047] The cold construction cement-based cementitious material is composed of solid phase material and liquid phase material in a mass ratio of 9:3;

[0048] The solid phase material is composed of the following raw materials in parts by weight: cement 45 parts, fast hardening agent 17 parts, super-fine mineral admixture 15 parts, synergist 8 parts, nano C-S-H crystal nucleus 10 parts, water reducing agent 0.1 parts, internal curing agent 0.15 parts, retarder 0.25 parts, the cement is a mixture of finely ground 72.5 grade sulphoaluminate cement and finely ground 52.5 grade white portland cement in a mass ratio of 6.5:3.5, the fast hardening agent is a mixture of non-crystalline calcium aluminate mineral and anhydrite in a mass ratio of 7.5:2.5, the super-fine mineral admixture is a mixture of mineral powder and calcined coal gangue in a mass ratio of 6:4, the synergist is super-fine alumina residue powder, and the retarder is a mixture of tartaric acid and boric acid in a mass ratio of 1:1.2;

[0049] The liquid phase material is a mixture of methanol, ethylene glycol and water in a mass ratio of 1:3:8.

[0050] The detected, -25 ℃ condition, the initial flow degree of slurry 250 mm, and the plasticity is good, -1d compressive strength 26.0 MPa, -3d compressive strength 38.9 MPa, -7d+21d compressive strength 71.5 MPa, -7d+21d flexural strength 7.8 MPa.

[0051] Comparative example 1

[0052] The cement-based cementitious material is composed of solid phase material and liquid phase material in a mass ratio of 9:3;

[0053] The solid phase material is composed of the following raw materials in parts by weight: cement 45 parts, fast hardening agent 17 parts, super fine mineral admixture 23 parts, nano C-S-H crystal nucleus 10 parts, water reducing agent 0.1 part, internal curing agent 0.15 part, retarder 0.25 part, the cement is a mixture of 52.5 grade sulphoaluminate cement and 42.5 grade ordinary Portland cement in a mass ratio of 6.5:3.5, the fast hardening agent is a mixture of C3A mineral and anhydrite in a mass ratio of 7.5:2.5, the super fine mineral admixture is a mixture of mineral powder and calcined coal gangue in a mass ratio of 6:4, and the retarder is a mixture of tartaric acid and boric acid in a mass ratio of 1:1.2;

[0054] The liquid phase material is a mixture of methanol, ethylene glycol and water in a mass ratio of 1:3:8.

[0055] The detected, -25 ℃ condition, the initial flow degree of slurry 200 mm, -1d compressive strength 7.2 MPa, -3d compressive strength 10.1 MPa, -7d+21d compressive strength 37.4 MPa, -7d+21d flexural strength 2.3 MPa.

[0056] Comparative example 2

[0057] The cement-based cementitious material is composed of solid phase material and liquid phase material in a mass ratio of 9:3;

[0058] The solid phase material is composed of the following raw materials in parts by weight: cement 45 parts, super fine mineral admixture 32 parts, synergist 18 parts, water reducing agent 0.1 part, internal curing agent 0.15 part, retarder 0.25 part, the cement is a mixture of ground 72.5 grade sulphoaluminate cement and ground 52.5 grade white Portland cement in a mass ratio of 6.5:3.5, the super fine mineral admixture is a mixture of fly ash and silica fume in a mass ratio of 6:4, the synergist is super fine alumina residue powder, and the retarder is a mixture of tartaric acid and boric acid in a mass ratio of 1:1.2;

[0059] The liquid phase material is a mixture of methanol, ethylene glycol and water in a mass ratio of 1:3:8.

[0060] The detected initial flow degree of the slurry is 210 mm at -25℃, the -1d compressive strength is 13.3 MPa, the -3d compressive strength is 21.7 MPa, and the -7d+21d compressive strength is 32.0 MPa,

[0061] The -7d+21d flexural strength is 2.7 MPa.

[0062] Comparative Example 3

[0063] The cement-based cementitious material is composed of solid phase material and liquid phase material in a mass ratio of 9:3;

[0064] The solid phase material is composed of the following raw materials in parts by weight: cement 45 parts, fast hardening agent 17 parts, super fine mineral admixture 15 parts, synergist 8 parts, nano C-S-H crystal nucleus 10 parts, water reducing agent 0.1 part, internal curing agent 0.15 part, and retarder 0.25 part. The cement is 72.5 grade sulphoaluminate cement, the fast hardening agent is a mixture of non-crystalline calcium aluminate mineral and anhydrite in a mass ratio of 7.5:2.5, the super fine mineral admixture is a mixture of mineral powder and calcined coal gangue in a mass ratio of 6:4, the synergist is fly ash microbeads, and the retarder is a mixture of tartaric acid and boric acid in a mass ratio of 1:1.2.

[0065] The liquid phase material is a mixture of methanol, ethylene glycol and water in a mass ratio of 1:3:8.

[0066] The detected initial flow degree of the slurry is 190 mm at -25℃, the -1d compressive strength is 10.4 MPa, the -3d compressive strength is 25.9 MPa, and the -7d+21d compressive strength is 40.1 MPa,

[0067] The -7d+21d flexural strength is 3.4 MPa.

[0068] Comparative Example 4

[0069] The cement-based cementitious material is composed of solid phase material and liquid phase material in a mass ratio of 9:3;

[0070] The solid phase material is composed of the following raw materials in parts by weight: cement 45 parts, super fine mineral admixture 40 parts, synergist 15 parts, calcium chloride 1 part, triethanolamine 2 parts, sodium nitrite 1 part, water reducing agent 0.1 part, internal curing agent 0.15 part, and retarder 0.25 part. The cement is 52.5 grade sulphoaluminate cement, the super fine mineral admixture is a mixture of fly ash and mineral powder in a mass ratio of 6:4, the synergist is silica fume, and the retarder is a mixture of tartaric acid and boric acid in a mass ratio of 1:1.2.

[0071] The liquid phase material is a mixture of methanol, ethylene glycol and water in a mass ratio of 1:3:8.

[0072] The detection shows that the initial fluidity of the slurry is 170 mm, the -1d compressive strength is 3.5 MPa, the -3d compressive strength is 4.9 MPa, the -7d+21d compressive strength is 15.6 MPa, and the -7d+21d flexural strength is 1.1 MPa under the condition of -25℃.

[0073] Comparative Example 5

[0074] The cement-based cementitious material is composed of solid phase material and liquid phase material in a mass ratio of 9:3.

[0075] The solid phase material is composed of the following raw materials in parts by weight: cement 45 parts, fast hardening agent 17 parts, super-fine mineral admixture 15 parts, synergist 8 parts, nano C-S-H crystal nucleus 10 parts, water reducing agent 0.1 part, internal curing agent 0.15 part, and retarder 0.25 part. The cement is a mixture of ground 72.5 grade sulphoaluminate cement and ground 52.5 grade white portland cement in a mass ratio of 6.5:3.5, the fast hardening agent is a mixture of amorphous calcium aluminate mineral and anhydrite in a mass ratio of 7.5:2.5, the super-fine mineral admixture is a mixture of mineral powder and calcined coal gangue in a mass ratio of 6:4, the synergist is super-fine alumina slag powder, and the retarder is a mixture of tartaric acid and boric acid in a mass ratio of 1:1.2.

[0076] The liquid phase material is water.

[0077] The detection shows that the initial fluidity of the slurry is 190 mm, the -1d compressive strength is 19.2 MPa, the -3d compressive strength is 27.1 MPa, the -7d+21d compressive strength is 44.2 MPa,

[0078] the -7d+21d flexural strength is 4.9 MPa.

[0079] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cold-applied cementitious material, characterized in that, The solid phase material and the liquid phase material are composed of mass ratio (8-12):3; The solid phase material is composed of the following raw materials: cement 40-60 parts, fast hardening agent 1-20 parts, super-fine mineral admixture 1-20 parts, synergist 0.1-10 parts, nano C-S-H crystal nucleus 0.1-10 parts, water reducing agent 0.01-0.2 parts, internal curing agent 0.01-0.3 parts, retarder 0.02-0.5 parts, the cement is a mixture of ground 72.5 grade sulphoaluminate cement and ground 52.5 grade white Portland cement in mass ratio (5-6.5):(3.5-5.5), the fast hardening agent is a mixture of amorphous calcium aluminate mineral and anhydrite in mass ratio (7-7.5):(2.5-3.5), the super-fine mineral admixture is a mixture of mineral powder and calcined coal gangue in mass ratio (6-6.5):(3.5-4.5), and the synergist is super-fine alumina slag powder. The liquid phase material is a mixture of methanol, ethylene glycol and water in mass ratio 1:3:(6-10).

2. The cementitious material according to claim 1, wherein The solid phase material is composed of the following raw materials: cement 40-60 parts, fast hardening agent 10-20 parts, super-fine mineral admixture 10-20 parts, synergist 1-10 parts, nano C-S-H crystal nucleus 1-10 parts, water reducing agent 0.1-0.2 parts, internal curing agent 0.1-0.3 parts, and retarder 0.2-0.5 parts.

3. The cementitious material of claim 1, wherein the cementitious material is a cold- applied cementitious material. The specific surface area of the ground 72.5 grade sulphoaluminate cement is 650-700 m 2 / kg, the content of calcium sulphoaluminate is not less than 65%, and the content of belite is not higher than 25%; the specific surface area of the ground 52.5 grade white Portland cement is 550-650 m 2 / kg, the content of alite is not less than 70%, and the content of belite is not higher than 15%.

4. The settable cementitious material of claim 1, wherein The specific surface area of the quick-hardening agent is 800-850 cm 2 / g, and the amorphous calcium aluminate mineral preparation process is: uniformly mixing CaO and Al2O3 in a mass ratio of 1:0.9-1.2, calcining at 1500-1700 ℃, then cooling the molten liquid to 1180-1200 ℃ by compressed air, and then cooling to room temperature by water, and grinding to 450-500 cm 2 / g, and the amorphous calcium aluminate mineral preparation process is: uniformly mixing CaO and Al2O3 in a mass ratio of 1:0.9-1.2, calcining at 1500-1700 ℃, then cooling the molten liquid to 1180-1200 ℃ by compressed air, and then cooling to room temperature by water, and grinding to 450-500 cm 5. The settable cementitious material of claim 1, wherein The calcined coal gangue has a coal gangue calcination temperature of 800-850℃, and the superfine mineral admixture has a specific surface area of 1000cm 2 / g.

6. The settable cementitious material of claim 1, wherein The preparation process of the superfine alumina slag powder is as follows: grinding alumina slag powder to specific surface area of 700-800 cm 2 / g, and then obtaining the superfine alumina slag powder.

7. The settable cementitious material of claim 1, wherein The water reducing agent is polycarboxylic acid water reducing agent, and the internal curing material is SAP water-absorbing resin particles with particle size of 0.1-0.3 mm.

8. The settable cementitious material of claim 1, wherein, The retarder is a mixture of tartaric acid and boric acid in mass ratio 1:(1.0-1.5).

9. The method of making a cementitious material according to any one of claims 1-8, wherein the cementitious material is a cold-applied cementitious material. The method comprises the following steps: 1) weighing each raw material by mass, 2) mixing each raw material to obtain liquid phase material and solid phase material respectively, 3) mixing the liquid phase material and the solid phase material uniformly, and obtaining the product.

10. Application of the cold construction cementitious material according to any one of claims 1-8 to construction in low negative temperature environment.