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Sulphoaluminate cement composite reinforcing agent

A technology of sulphoaluminate cement and composite reinforcement, which is applied in the field of sulphoaluminate cement composite reinforcing agent, can solve the problem that there is no research report on sulphoaluminate cement reinforcing agent, the profit cannot be maximized, and the amount of mixed materials is limited. Limitation and other issues, to achieve the effect of improving plasticity, increasing compressive strength, and delaying cement hardening

Active Publication Date: 2018-06-22
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of mixed materials improves the workability of sulphoaluminate cement, the stability of strength development, and improves the color of sulphoaluminate cement, but it also greatly reduces the strength of cement. The amount of mixed materials is limited and cannot maximize profits
[0004] At home and abroad, there are a lot of research materials on the early strength agent and retarder of sulphoaluminate cement, but there is no research report on sulphoaluminate cement strengthening agent

Method used

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  • Sulphoaluminate cement composite reinforcing agent

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A kind of sulphoaluminate cement composite reinforcing agent that one embodiment of the present invention proposes, by weight, it comprises:

[0027] Diethylene glycol: 0.01 parts;

[0028] Calcium hydroxide: 0.1 parts;

[0029] Sodium gluconate: 0.1 parts.

[0030] The sulphoaluminate cement reinforcing agent of Example 1 was mixed with 100 parts of blank sulphate cement, and the cement strengthening effect was tested as shown in Table 1.

Embodiment 2

[0032] A kind of sulphoaluminate cement composite reinforcing agent that one embodiment of the present invention proposes, by weight, it comprises:

[0033] Diethylene glycol: 0.007 parts;

[0034] Calcium hydroxide: 0.1 parts;

[0035] Sodium gluconate: 0.1 parts.

[0036] The sulphoaluminate cement reinforcing agent of Example 2 was mixed with 100 parts of blank sulphate cement, and the cement strengthening effect was tested as shown in Table 1.

Embodiment 3

[0038] A kind of sulphoaluminate cement composite reinforcing agent that one embodiment of the present invention proposes, by weight, it comprises:

[0039] Diethylene glycol: 0.008 parts;

[0040] Calcium hydroxide: 0.15 parts;

[0041] Sodium gluconate: 0.3 parts.

[0042] The sulphoaluminate cement reinforcing agent of Example 3 was mixed with 100 parts of blank sulphate cement, and the cement strengthening effect was tested as shown in Table 1.

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Abstract

The invention relates to a sulphoaluminate cement composite reinforcing agent. The agent is prepared from, by weight, 0.005-0.01 part of stabilizer, 0.1-0.3 part of calcium increasing agent and 0.1-0.3 part of regulating agent. According to the sulphoaluminate cement composite reinforcing agent, through the synergistic effect of the three components, the hydration of sulphoaluminate cement and theformation of ettringite are promoted, the compact type of a hardened slurry structure is kept at the same time, and therefore the sulphoaluminate cement has high later strength.

Description

technical field [0001] The invention relates to the field of preparation of sulphoaluminate cement, in particular to a composite reinforcing agent for sulphoaluminate cement. Background technique [0002] Sulphoaluminate cement is anhydrous calcium sulphoaluminate (C 4 A 3 S), tetracalcium aluminoferrite (C 4 AF) and dicalcium silicate (C 2 S) is a hydraulic cementitious material composed of clinker mainly composed of minerals, mixed with appropriate amount of gypsum and mixed materials and ground together. This series of cement has excellent properties such as low temperature hardening, early strength and quick hardening, frost resistance, and impermeability. According to early research, in terms of strength development, the 12h-1d compressive strength can reach 35-50MPa, the flexural strength can reach 6.5-7.5MPa; the 3d compressive strength can reach 50-70MPa, and the flexural strength can reach 7.5-8.5MPa . [0003] However, with the reduction of high-quality bauxit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/10
CPCC04B40/0039C04B2201/50C04B24/026C04B22/064C04B24/10
Inventor 郭俊萍肖忠明
Owner CHINA BUILDING MATERIALS ACAD
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