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Aluminate cement-based powder accelerator, and preparation method and application thereof

A kind of aluminate cement and cement-based technology, which is applied in the field of building material admixtures, can solve the problems that the quick-setting effect cannot meet the demand, the loss of 28d compressive strength is large, and the cost is high, so as to achieve good quick-setting effect, production equipment and personnel The effect of low requirements and low cost

Active Publication Date: 2021-12-03
焦作市红石环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of aluminate cement-based powder quick-setting agent and its preparation method and application, to solve the problem of the existing quick-setting agent The effect cannot meet the demand, the loss of 28d compressive strength is large, and the cost is high.

Method used

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  • Aluminate cement-based powder accelerator, and preparation method and application thereof
  • Aluminate cement-based powder accelerator, and preparation method and application thereof
  • Aluminate cement-based powder accelerator, and preparation method and application thereof

Examples

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preparation example Construction

[0030] Preparation method of an aluminate cement powder fungier of the present invention, such as figure 1 As shown, the following steps include the following steps: Aluminate cement, sodium carbonate, aluminum sulfate, sulfate, cooked lime mixed in the mixture in the mixing machine, according to the standard "spray concrete" in the building materials industry (JC " 477-2005) Test was performed, and the aluminate cement-based powder veneer was obtained.

[0031] The aluminate cement powder racturing agent provided by the present invention has: (1) good speed, the initial coagulation is adjustable between 3 to 7 minutes, and the final reaches is adjustable between 5 to 12min; (2) 1D compressive strength is high, adjustable between 7 to 11 MPa; (3) 28D compressive strength loss is small; (4) good features of different cement applicability.

[0032] The present invention has low requirements for production equipment and personnel, short production cycle, low production cost, and the ...

Embodiment 1

[0040] The aluminate cement powder percursion agent of the present embodiment is: the preparation method is: 5000 g of aluminate cement, 1500g of sodium carbonate, 1000 g of sulfate, 1000 g of sulfate, and a mature lime 500g, add the grinding mixer, mixed. 350m specific surface area 2 / kg, in accordance with the standard "spray concrete speed coagulant" (JC 477-2005) by the building materials industry, the aluminate cement-based powder perimecase is obtained.

[0041]Different cement, such as silicate cement, ordinary silicate cement, composite silicate cement, fly ash silicate cement, mineralolate silicate cement, in accordance with the standard of building materials industry "The provisions of the condensation time are tested, in which 400 g, aluminate cement powder speed coagulant is 24 g, water 160g, and the test results are shown in Table 1.

[0042] Different cement, such as silicate cement, ordinary silicate cement, composite silicate cement, fly ash silicate cement, miner...

Embodiment 2

[0051] The aluminate cement-based powder percorator of the present embodiment is different from the difference in the addition of each of the raw materials. Specifically, the aluminate cement 4000g, sodium carbonate is 2000g, aluminum sulfate, 1500 g sodium sulfate, and sodium sulfate. The preparation of 1000g, preparation method and performance test method are the same as in Example 1, and will not be described again.

[0052] The condensation time and the compressive strength test result of the aluminate cement powder velocgertant and different cements are shown in Table 3.

[0053] Table 3 Different cement coagulation time and compressive strength test results

[0054]

[0055] As can be seen from Table 3 and Table 2, when the composition of the powdered powder condensant is constructed in the specified proportional range, the aluminate cement-based powder of the present invention is still having a variety of silicate cement Good matching. Similarly, when the amount of silica...

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Abstract

The invention belongs to the technical field of building material admixtures, and particularly relates to an aluminate cement-based powder accelerator, and a preparation method and application thereof. The aluminate cement-based powder accelerator comprises aluminate cement, sodium carbonate, aluminum sulfate, sodium sulfate and slaked lime. The weight ratio of the components in the powder accelerator is as follows: aluminate cement: sodium carbonate: aluminum sulfate: sodium sulfate: slaked lime is equal to (40-60): (10-20): (10-20): (10-20): (5-20). The aluminate cement-based powder accelerator disclosed by the invention has the characteristics of good rapid setting effect, small 28 d compressive strength loss, low cost and the like. The method has the advantages of low requirements on production equipment and personnel, short production period, low production cost, no generation of three wastes in the whole process, and no influence on the environment.

Description

Technical field [0001] The present invention belongs to the technical field of building materials, and more particularly to an aluminate cement-based powder gearic agent and a preparation method thereof. Background technique [0002] Spray concrete is often used in engineering to quickly reinforce or repair, and the speedoculation agent is an unpleasant additive for spraying concrete. It not only determines whether the concrete can achieve fast-faster, but also the later performance of concrete. Great influence. At present, according to the content of the base, it can be divided into an alkali-free condensing agent and an alkali-alkali-alkali-free condensing agent; according to the ingredient of the speedoculant, it can be divided into an inorganic speed chaotulent agent and an organic speed condensant; according to the state of the speedoculation agent, It is divided into powder quickagulant and liquid quickagulant. The alkali-free speed coagulant is the most popular, but since ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B22/14C04B28/04C04B28/08C04B103/12
CPCC04B40/0042C04B28/04C04B28/08C04B2103/12C04B2201/50C04B22/08C04B22/10C04B22/148C04B22/147C04B22/064Y02W30/91
Inventor 丁涛李毅杨青枝
Owner 焦作市红石环保科技有限公司
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