CN115403340A - Preparation method of high early strength and high corrosion resistance composite aluminate cement-based material - Google Patents

Preparation method of high early strength and high corrosion resistance composite aluminate cement-based material Download PDF

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CN115403340A
CN115403340A CN202211161282.4A CN202211161282A CN115403340A CN 115403340 A CN115403340 A CN 115403340A CN 202211161282 A CN202211161282 A CN 202211161282A CN 115403340 A CN115403340 A CN 115403340A
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aluminate cement
based material
early strength
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aggregate
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丁文文
赵翠娇
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Jiangsu University of Science and Technology
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention provides a preparation method of a high early strength and high corrosion resistance composite aluminate cement-based material, which belongs to the technical field of building materials, wherein the aluminate cement-based material comprises the following components in parts by mass: 10-30 parts of calcined clay, 70-90 parts of aluminate cement, 250-450 parts of aggregate, 25-40 parts of mixing water and 1-4 parts of water reducing agent; the preparation method comprises the steps of pouring the calcined clay and the aluminate cement into a concrete mixer, uniformly mixing, adding mixing water and the water reducing agent, and fully stirring; adding aggregate, stirring uniformly, pouring into a mould, and compacting and molding; immediately placing the formed concrete at a low temperature of between 5 and 15 ℃ for curing to an age; the beneficial effects of the invention are as follows: the early strength is high, the 3d compressive strength can reach 50Mpa, the mechanical property is stable, the durability is high, the 28d compressive strength can reach 65Mpa, the problem of strength shrinkage of aluminate cement is solved, the corrosion resistance is good, the preparation process is simple, and the production period is short.

Description

Preparation method of high early strength and high corrosion resistance composite aluminate cement-based material
Technical Field
The invention relates to a preparation method of a high early strength and high corrosion resistance composite aluminate cement-based material, belonging to the technical field of building materials.
Technical Field
The traditional portland cement is easy to be degraded and damaged in a complicated and severe marine environment, the aluminate cement has the characteristics of quick hardening, early strength, high strength, scouring resistance, erosion resistance and the like, has high dispersion resistance during underwater construction, is suitable for marine underwater engineering construction, has excellent chemical binding capacity of hydration products, is marine engineering cement with great development prospect, and becomes a research hotspot in the field of marine engineering construction materials.
The Chinese patent with publication number CN106517968A discloses a modified aluminate cement, and the reason for the strength shrinkage of the aluminate cement is explained in the application document, i.e. the hydrated product has crystal form transformation phenomenon, and when the hydrated product is cured at 20-40 deg.C, the hydrated product is cured by CAH 10 And C 2 AH 8 Mainly, when the post-curing temperature is higher than 20 ℃ for a long time, the metastable CAH 10 And C 2 AH 8 C which will change to a steady state 3 AH 6 And AH 3 Due to C 3 AH 6 Has a density higher than CAH 10 And C 2 AH 8 The hydration products undergo a phase transition resulting in an increase in internal porosity of the set cement, thereby reducing compressive strength. At curing temperatures above 40 ℃, the hydration products directly form C 3 AH 6 And AH 3 Under the condition of the same water-cement ratio and setting period, the high-temperature cured aluminate cement stone has lower compressive strength. The phosphate-added aluminate cement comprises the following raw materials in percentage by mass: aluminate cement: 65 to 80 percent; phosphate salt: 3 to 10 percent; micro silicon: 5 to 12 percent; slag: 10 to 25 percent. By adding phosphate to form C-A-S-P-H amorphous hydration product with aluminate cement, the pH value of the pore liquid in the set cement is changed, the calcium ion concentration is reduced to CAH 10 、C 2 AH 8 Under the condition of low-temperature hydration, the early strength of the cement prepared by the formula is not high, and the final strength is not ideal.
In the prior art, limestone powder is added into aluminate cement to solve the research of later strength reverse shrinkage, for example, the Chinese patent invention CN114605129A, however, limestone powder has low reaction activity and poor inhibition effect on later strength reverse shrinkage, and the problem that the early strength of a concrete material is low due to the addition of high-content limestone powder is easy to cause the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a preparation method of a high early strength and high corrosion resistance composite aluminate cement-based material.
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:
a preparation method of a high early strength and high corrosion resistance composite aluminate cement-based material comprises the following components in percentage by mass: 10-30% of metakaolin, 70-90% of aluminate cement, 250-450% of limestone aggregate, 25-40% of blending water and 1-4% of water reducing agent; the preparation method comprises the following steps:
(1) Pouring metakaolin and aluminate cement into a concrete mixer to be uniformly mixed;
(2) Adding mixing water and a water reducing agent, and fully stirring;
(3) Adding aggregate, stirring uniformly, pouring into a mould, and compacting and molding;
(4) The formed concrete is immediately placed at 5-15 ℃ and maintained to age under the condition that the maintenance humidity is more than or equal to 96%.
Preferably, the aluminate cement is CA60-I which meets the GB/T201-2015 technical requirement, namely, the main mineral is monocalcium aluminate CA with the density of 3000-3300kg/m 3 Specific surface area of not less than 300m 2 Per kg,45 mu m sieve residue is not more than 20 percent, and the chemical composition thereof is as follows by mass percent: al (aluminum) 2 O 3 50～60％，CaO 30～40％， SiO 2 3～7％。
Preferably, the metakaolin is prepared by calcining kaolin at 650-950 ℃ for 3-5h and then quenching, and has a particle size distribution of 0.5-60 μm and a density of 2400-2700kg/m 3 Specific surface area of more than 1000m 2 The ignition loss is less than or equal to 2 percent per kg, and the chemical composition comprises the following components in percentage by mass: siO 2 2 45～58％，Al 2 O 3 37-45%, and the main mineral composition is: amorphous silica and alumina, the silica being in the form of network silica tetrahedra, i.e. Q 4 Type is mainly, aluminum in the alumina is coordinated with Al IV 、Al V And Al VI The type is the main.
Preferably, the aggregate is formed by mixing coarse aggregate and fine aggregate according to a certain mass ratio, wherein the fine aggregate accounts for 30-50%, and the coarse aggregate accounts for 50-70%; wherein the average grain diameter of the fine aggregate is 0.6mm, the average grain diameter of the coarse aggregate is 10mm, and the main mineral composition is limestone.
Preferably, the water reducing agent is a polycarboxylic acid water reducing agent, and the solid content of the water reducing agent is not less than 40%.
The invention has the following beneficial effects:
aiming at the problems that the limestone is difficult to effectively inhibit the phase transformation of metastable products to cause the late strength of an aluminate cement matrix to be inversely contracted, the early strength of a concrete material is low and the like, the method induces the hydration of aluminate cement to form CAH by regulating and controlling the early curing temperature based on the phase transformation difference of the two metastable products 10 While the small amount of metakaolin incorporated can stabilize the CAH formed early 10 Significantly prolong CAH 10 The reaction time with limestone aggregate is effectively promoted to stabilize the product C 3 A·CaCO 3 11H and gel-like AH 3 The formation method comprises the steps of regulating and controlling the type of metastable products of the aluminate cement, improving the compactness, the mechanical property and the impermeability of a cement matrix microstructure under the action of synergistically inhibiting the phase transformation of the metastable products by metakaolin and limestone aggregates, promoting the efficient application of admixtures in an aluminate cement system, and being beneficial to the preparation and the application of the composite aluminate cement-based material.
The composite cement-based material has the characteristics of high early strength, the compressive strength of 3d can reach 50MPa, the mechanical property is stable, the durability is high, the compressive strength of 28d can reach 65MPa, the problem of strength shrinkage of aluminate cement is solved, the corrosion resistance is good, the preparation process is simple, the production period is short, and the like.
The composite cement-based material can be used for curing heavy metals and can also be used for marine engineering cement.
Drawings
FIG. 1 is a BSE image of comparative example 2 maintained at 40 ℃ for an age of 28 d;
FIG. 2 is a BSE image of example 1 maintained at 40 ℃ for an age of 28 d;
FIG. 3 is a scheme of synthesis of CAH 10 、C 2 AH 8 Respectively mixed with Metakaolin (MK) -calcium aggregate (CaCO) 3 ) Reaction ofXRD pattern of product.
Detailed Description
In order to better understand the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.
In the following examples, the aluminate cement is CA60-I which meets the GB/T201-2015 technical requirement, and the density is 3000-3300kg/m 3 Specific surface area of not less than 300m 2 Kg,45 mu m screen residue is not more than 20 percent, and the chemical composition thereof is calculated by mass percent: al (aluminum) 2 O 3 50～60％，CaO 30～40％，SiO 2 3 to 7 percent; the metakaolin is prepared by calcining kaolin at 650-950 deg.C for 3-5 hr, and quenching, and has particle size distribution of 0.5-60 μm and density of 2400-2700kg/m 3 Specific surface area of more than 1000m 2 The ignition loss is less than or equal to 2 percent per kg, and the chemical composition comprises the following components in percentage by mass: siO 2 2 45～58％，Al 2 O 3 37-45%, and the main mineral composition is: amorphous silica and alumina, wherein the silica is mainly network silica tetrahedron, and the coordination of aluminum in the alumina is Al IV 、Al V And Al VI The type is mainly; the aggregate is formed by mixing coarse and fine aggregates: 30-50% of fine aggregate and 50-70% of coarse aggregate, wherein the average particle size of the fine aggregate is 0.6mm, and the average particle size of the coarse aggregate is 10mm; the water reducing agent is a polycarboxylic acid water reducing agent, and the solid content of the polycarboxylic acid water reducing agent is not less than 40%.
Comparative example 1
Mixing aluminate cement, mixing water and a water reducing agent according to the weight part of 100:40:0.5, adding 300 parts of limestone aggregate, stirring by using a concrete single horizontal shaft stirrer, and pouring into the mixture with the size of 100 multiplied by 100mm after stirring 3 The surface of the triple-link mould is smoothed by a scraper and covered with a PE preservative film to prevent the water in the concrete from evaporating. And immediately moving the concrete to 15 ℃ for curing for 24 hours after the concrete is formed, and moving the concrete to 40 ℃ water bath for further curing for 3 days and 28 days in order to accelerate the phase transition of metastable products.
Comparative example 2
Mixing 85 parts of aluminate cement and 15 parts of metakaolin uniformly, adding 40 parts of metakaolin and stirringMixing water and 0.5 part of water reducing agent, adding 300 parts of siliceous aggregate after uniformly mixing, stirring by using a concrete single horizontal shaft stirrer, pouring the mixture into a mixer with the size of 100 multiplied by 100mm after stirring 3 The surface of the triple-connected mould is smoothed by a scraper and covered with a PE preservative film on the surface of the concrete to prevent the water in the concrete from evaporating. And immediately moving the concrete to 15 ℃ for curing for 24 hours after the concrete is formed, and moving the concrete to 40 ℃ water bath for further curing for 3 days and 28 days in order to accelerate the phase transition of metastable products.
Example 1
Mixing 85 parts of aluminate cement and 15 parts of metakaolin uniformly, adding 40 parts of mixing water and 0.5 part of water reducing agent, adding 300 parts of limestone aggregate after uniform mixing, stirring by using a concrete single horizontal shaft stirrer, and pouring into a mixer with the size of 100 multiplied by 100mm after stirring 3 The surface of the triple-link mould is smoothed by a scraper and covered with a PE preservative film to prevent the water in the concrete from evaporating. And immediately moving the concrete to 15 ℃ for curing for 24 hours after the concrete is formed, and moving the concrete to 40 ℃ water bath for further curing for 3 days and 28 days in order to accelerate the phase transition of metastable products.
Example 2
The difference from example 1 is that the concrete was cured at 25 ℃ for 24 hours after molding.
Example 3
The difference from example 1 is that the concrete was cured at 19 ℃ for 24 hours after molding.
Example 4
The difference from example 1 is that the concrete was cured at 10 ℃ for 24 hours after molding.
Example 5
The difference from example 1 is that the concrete was cured at 5 ℃ for 24 hours after molding.
The concrete test blocks of the foregoing examples and comparative examples were tested for compressive strength, resistance to attack by chloride ions, and permeability resistance, as shown in Table 1.
TABLE 1 proportioning and early curing conditions of high early strength, high corrosion resistance composite aluminate cement base material
Proportioning Comparative example 1 Comparative example 2 Example 1 Example 2 Example 3 Example 4 Example 5
Aluminate cement 100 portions of 85 portions of 85 portions of 85 portions of 85 portions of 85 portions of 85 portions of
Metakaolin clay / 15 portions of 15 portions of 15 portions of 15 portions of 15 portions of 15 portions of
Calcareous aggregate 300 portions of / 300 portions of 300 portions of 300 portions of 300 portions of 300 portions of
Siliceous aggregate / 300 portions of / / / / /
Curing temperature 15℃ 15℃ 15℃ 25℃ 19℃ 10℃ 5℃
Maintenance time 24h 24h 24h 24h 24h 24h 24h
The compressive strength of concrete test blocks 3d and 28d is tested according to GB/T50107-2010, the chloride ion diffusion coefficient is tested according to JC/T1086-2008, the capillary water absorption coefficient is tested by referring to ASTM C1585, and the performance test results are shown in Table 2.
TABLE 2 Properties of high early Strength, high Corrosion resistance composite aluminate Cement-based materials
Figure BDA0003857608870000051
It can be seen from comparative examples 1 to 2 and example 1 in table 2 that the concrete doped only with the calcareous aggregate has poor performance due to the phase transition of metastable products during the curing process in water bath at 40 ℃, while the concrete 3d and 28d doped with metakaolin and the calcareous aggregate has high strength, excellent resistance to chloride ion corrosion and permeability, and simultaneously the degree of compactness of the interface transition zone is obviously better than that of the concrete doped with metakaolin and siliceous aggregate, as shown in fig. 1 and 2, mainly due to the synergistic effect of inhibiting the phase transition between metakaolin and the calcareous aggregate. In addition, it can be understood from the results of examples 1 to 5 that the early curing temperature significantly affects the properties of the concrete material. Inducing aluminate cement to hydrate to form CAH under the curing condition of less than 15 DEG C 10 In the direction of C 3 AH 6 Has slower transformation rate, is more stable by aluminum dissolved out by metakaolin and forms C by hydration at 25 DEG C 2 AH 8 In the direction of C 3 AH 6 The transition is rapid and difficult to suppress, therefore, with C 2 AH 8 In contrast, CAH 10 With CaCO 3 The reaction is easier to form C 3 A·CaCO 3 11H is shown in FIG. 3. In conclusion, the composite aluminate cement-based material with high early strength and high corrosion resistance can be prepared by regulating and controlling the early-stage curing temperature and simultaneously under the action of inhibiting the phase transition of metastable products by the cooperation of metakaolin and calcareous aggregate, and can replace a silicate concrete material to be applied to complex and severe ocean engineering construction.
The reaction mechanism is as follows:
the monocalcium aluminate CA is the main gelling mineral of aluminate cement, whose hydration products are closely related to the curing temperature, see equations 1-3. Hydration of CA at temperatures below 15 ℃ to form CAH 10 Formation of C at 15-25 deg.C 2 AH 8 And AH 3 And C is formed above 30 DEG C 3 AH 6 . However, as the curing time is prolonged or under the damp heat environment, the metastable product CAH 10 、C 2 AH 8 Free-standing stable product C 3 AH 6 Transformation, i.e. metastable product phase transformation, see equations 4 and 5, and CAH 10 The phase transition speed is obviously slower than that of C 2 AH 8 . The phase transformation of the metastable product causes the deterioration of the microstructure of the cement matrix, further induces the problems of insufficient concrete durability and the like, and greatly limits the application of aluminate cement-based materials in ocean engineering construction.
CA+10H→CAH 10 (1)
2CA+11H→C 2 AH 8 +AH 3 (2)
3CA+12H→C 3 AH 6 +2AH 3 (3)
3CAH 10 →C 3 AH 6 +2AH 3 +18H (4)
3C 2 AH 8 →2C 3 AH 6 +AH 3 +9H (5)
3CAH 10 +CaCO 3 →C 3 A·CaCO 3 ·11H+2AH 3 +13H (6)
3C 2 AH 8 +2CaCO 3 +H→2C 3 A·CaCO 3 ·11H+AH 3 (7)
The negative effect of phase transformation can be inhibited by mixing limestone powder with high content, and C is formed by the reaction of calcium carbonate and metastable product 3 A·CaCO 3 11H to inhibit metastable product phase transition, see equations 6 and 7. However, limestone powder has low reactivity, so that the later strength reverse shrinkage is difficult to be effectively inhibited, and the problem that the early strength of the concrete material is low due to the incorporation of high-content limestone powder is easy to cause the like.
Metakaolin is a high-activity silica-alumina mineral admixture, and can improve the microstructure stability of a cement matrix only under a low mixing amount, and effectively inhibit the strength of the cement matrix from being reversely reduced, because: during the phase transition of the metastable product, the metastable product first undergoes a dissolution reaction to generate Ca 2+ And
Figure BDA0003857608870000071
ions until the dissolution reaches dynamic equilibrium, while amorphous silica-alumina in metakaolin shows inconsistent dissolution behavior in alkaline pore solution, wherein high-activity Al IV And Al V Preferential dissolution, increase in solution
Figure BDA0003857608870000072
The ion concentration causes the solution equilibrium of the metastable product to move towards the precipitation direction of the metastable product, namely, the solubility of the metastable product is reduced under the action of the same ion effect, and the metastable product is inhibited from moving towards C 3 AH 6 And (4) converting. But due to CAH 10 The dissolution reaction rate is significantly slower than that of C 2 AH 8 Resulting in metakaolin stabilizing CAH 10 However, it is difficult to stabilize C 2 AH 8 . Based on the method, the hydration of the aluminate cement to form CAH is regulated and controlled by the early curing temperature 10 Aluminum stabilized CAH with inconsistent dissolution in metakaolin 10 Under the action of (3), prolong CAH 10 Reaction time with calcium carbonate, thereby promoting stabilization of product C 3 A·CaCO 3 11H and gelatinous AH 3 Formation, i.e. synergistic inhibition of CAH in metakaolin and limestone 10 Under the action of phase transformation, the stability of the microstructure of the cement matrix is improved, the pore structure is optimized, the diffusion rate of aggressive ions in the concrete is reduced, and the impermeability and the durability of the concrete are improved. The metakaolin composite aluminate cement-based material has the characteristics of high early strength, high corrosion resistance and the like, is suitable for ocean engineering construction in complex environments, and has wide application prospect.
It is apparent that the above embodiments are only examples for clearly illustrating, and are not limiting to the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are therefore intended to be included within the scope of the invention as claimed.

Claims (10)

1. The preparation method of the high early strength and high corrosion resistance composite aluminate cement-based material is characterized in that the aluminate cement-based material comprises the following components in parts by mass: 10-30 parts of calcined clay, 70-90 parts of aluminate cement, 250-450 parts of aggregate, 25-40 parts of mixing water and 1-4 parts of water reducing agent; the preparation method comprises the following steps:
(1) Pouring the calcined clay and the aluminate cement into a concrete mixer for uniform mixing;
(2) Adding mixing water and a water reducing agent, and fully stirring;
(3) Adding aggregate, stirring uniformly, and pouring into a mould for compaction molding;
(4) And immediately curing the formed concrete at a low temperature of between 5 and 19 ℃ to an age.
2. The method for preparing a high early strength, high corrosion resistant composite aluminate cement based material according to claim 1, wherein the density of the aluminate cement is 3000-3300kg/m 3 Specific surface area of not less than 300m 2 Per kg,45 mu m sieve residue is not more than 20 percent, and the chemical composition thereof is as follows by mass percent: al (Al) 2 O 3 50～60％，CaO 30～40％，SiO 2 3～7％。
3. The method for preparing a high early strength, high corrosion resistant composite aluminate cement-based material according to claim 1, wherein the calcined clay is prepared by calcining one or more of kaolinite, illite and montmorillonite at 650-950 ℃ for 3-5h and then quenching, and has a particle size distribution of 0.5-60 μm and a density of 2400-2700kg/m 3 Specific surface area greater than 1000m 2 Kg, loss on ignition is less than or equal to 2 percent, and the chemical composition is calculated by mass percent: amorphous silica 45-58%, al 2 O 3 37～45％。
4. The method for preparing a high early strength, high corrosion resistant composite aluminate cement based material according to claim 1, wherein the aggregate is limestone aggregate.
5. The method for preparing a high early strength, high corrosion resistant composite aluminate cement based material according to claim 4, wherein the aggregate is formed by mixing 30% -50% of fine aggregate and 50% -70% of coarse aggregate, wherein the average particle size of the fine aggregate is 0.6mm, and the average particle size of the coarse aggregate is 10mm.
6. The method for preparing the high early strength and high corrosion resistance composite aluminate cement-based material according to claim 1, wherein the water reducing agent is a polycarboxylic acid water reducing agent with a solid content of not less than 40%.
7. The method for preparing a high early strength, high corrosion resistant composite aluminate cement-based material according to claim 1, wherein the curing age is 24 hours.
8. The method for preparing the high early strength and high corrosion resistance composite aluminate cement-based material according to claim 1, wherein the curing humidity is not less than 96%.
9. The method for preparing the high early strength and high corrosion resistance composite aluminate cement-based material according to claim 1, characterized by further comprising the step (5): and (4) moving the concrete into a water bath at the temperature of between 40 and 60 ℃ to continue to maintain for 3 days and 28 days.
10. The method for preparing high early strength and high corrosion resistance composite aluminate cement-based material according to claim 1, wherein the formed concrete in the step (4) is immediately cured to an age at a low temperature of 15 ℃.
CN202211161282.4A 2022-09-21 2022-09-21 Preparation method of high early strength and high corrosion resistance composite aluminate cement-based material Pending CN115403340A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101113082A (en) * 2007-06-30 2008-01-30 郑州大学 Aluminous cement containing nano calcium carbonate and preparation method thereof
EP2943445A1 (en) * 2013-01-08 2015-11-18 Henkel AG&Co. KGAA Water-resistant binder based on calcium sulfate
CN110759654A (en) * 2019-12-05 2020-02-07 长江师范学院 Aluminate cement with high performance under high temperature condition and preparation method thereof
CN111704420A (en) * 2020-05-30 2020-09-25 同济大学 Corrosion-resistant aluminate cement pipeline and preparation method thereof
CN113795470A (en) * 2019-04-29 2021-12-14 伊梅斯切公司 Autoclaved cement composition
CN114605129A (en) * 2022-03-03 2022-06-10 武汉科技大学 Performance study based on initiation of limestone powder doped into aluminate cement
CN114920473A (en) * 2022-06-30 2022-08-19 湖南大学 Multi-element low-carbon less-clinker composite cement and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101113082A (en) * 2007-06-30 2008-01-30 郑州大学 Aluminous cement containing nano calcium carbonate and preparation method thereof
EP2943445A1 (en) * 2013-01-08 2015-11-18 Henkel AG&Co. KGAA Water-resistant binder based on calcium sulfate
CN113795470A (en) * 2019-04-29 2021-12-14 伊梅斯切公司 Autoclaved cement composition
CN110759654A (en) * 2019-12-05 2020-02-07 长江师范学院 Aluminate cement with high performance under high temperature condition and preparation method thereof
CN111704420A (en) * 2020-05-30 2020-09-25 同济大学 Corrosion-resistant aluminate cement pipeline and preparation method thereof
CN114605129A (en) * 2022-03-03 2022-06-10 武汉科技大学 Performance study based on initiation of limestone powder doped into aluminate cement
CN114920473A (en) * 2022-06-30 2022-08-19 湖南大学 Multi-element low-carbon less-clinker composite cement and preparation method thereof

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