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Swelling agent special for traffic engineering and production method of swelling agent

A technology of traffic engineering and expansion agent, which is applied in the field of special expansion agent for traffic engineering, which can solve the problems of slurry settlement and cracking, and achieve the effects of reducing sinking, high viscosity, and easy quality control

Inactive Publication Date: 2018-04-06
黎芷杉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the above-mentioned problems, the purpose of the present invention is to provide a special expansion agent for traffic engineering and its production method. In view of the problems such as settlement and cracking of the slurry after hardening of the current cement-based grouting materials, the use of construction waste, gypsum mud, etc. Material, a special expansion agent for traffic engineering designed with a reasonable formula

Method used

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  • Swelling agent special for traffic engineering and production method of swelling agent
  • Swelling agent special for traffic engineering and production method of swelling agent
  • Swelling agent special for traffic engineering and production method of swelling agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A special expansion agent for traffic engineering, the special expansion agent for traffic engineering comprises the following raw materials in parts by weight:

[0045] Expansion masterbatch: 100;

[0046] Active mineral admixture: 6;

[0047] Plastic expansion agent: 3;

[0048] Preservatives: 1;

[0049] Lignin-based water reducer: 2;

[0050] The expansion masterbatch contains the following raw materials in parts by weight:

[0051] Gypsum slag: 65;

[0052]Iron-aluminate clinker: 50;

[0053] Construction waste: 52.

[0054] The gypsum slag is the slag after beneficiation of mirabilite ore, and its chemical composition: LOSS13.28%, SiO 2 33.43%, Fe 2 o 3 3.23%, Al 2 o 3 9.63%, CaO12.75, MgO7.34, SO 3 20.09%.

[0055] The ferro-aluminate clinker is made of calcium carbonate, low-grade bauxite, hematite and gypsum in a weight ratio of 3:5:2:1, after being calcined at 1300~1350°C, and then added with a weight percentage of 5 - Clinker made by co-grinding...

Embodiment 2

[0072] A special expansion agent for traffic engineering, the special expansion agent for traffic engineering comprises the following raw materials in parts by weight:

[0073] Expansion masterbatch: 110;

[0074] Active mineral admixture: 7;

[0075] Plastic expansion agent: 4;

[0076] Preservatives: 2;

[0077] Lignin-based water reducer: 5;

[0078] The expansion masterbatch contains the following raw materials in parts by weight:

[0079] Gypsum slag: 70;

[0080] Ferric aluminate clinker: 55;

[0081] Construction waste: 55.

[0082] The gypsum slag is the slag after beneficiation of mirabilite ore, and its chemical composition: LOSS13.28%, SiO 2 33.43%, Fe 2 o 3 3.23%, Al 2 o 3 9.63%, CaO12.75, MgO7.34, SO 3 20.09%.

[0083] The ferro-aluminate clinker is made of calcium carbonate, low-grade bauxite, hematite and gypsum in a weight ratio of 3:5:2:1, after being calcined at 1300~1350°C, and then added with a weight percentage of 5 - Clinker made by co-grind...

Embodiment 3

[0100] A special expansion agent for traffic engineering, the special expansion agent for traffic engineering comprises the following raw materials in parts by weight:

[0101] Expansion masterbatch: 120;

[0102] Active mineral admixture: 8;

[0103] Plastic swelling agent: 5;

[0104] Preservatives: 3;

[0105] Lignin-based water reducer: 8;

[0106] The expansion masterbatch contains the following raw materials in parts by weight:

[0107] Gypsum slag: 75;

[0108] Ferric aluminate clinker: 60;

[0109] Construction waste: 58.

[0110] The gypsum slag is the slag after beneficiation of mirabilite ore, and its chemical composition: LOSS13.28%, SiO 2 33.43%, Fe 2 o 3 3.23%, Al 2 o 3 9.63%, CaO12.75, MgO7.34, SO 3 20.09%.

[0111] The ferro-aluminate clinker is made of calcium carbonate, low-grade bauxite, hematite and gypsum in a weight ratio of 3:5:2:1, after being calcined at 1300~1350°C, and then added with a weight percentage of 5 - Clinker made by co-grindi...

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Abstract

The invention provides a swelling agent special for traffic engineering. The swelling agent special for the traffic engineering is prepared from, by weight, 60-90 parts of swelling master batch, 10-40parts of active mineral admixture, 0.5-2.5 parts of plastic swelling agent, 1-3 parts of anti-corrosion agent and 2-8 parts of lignosulphonate water reducer, wherein the swelling master batch comprises, by weight, 35-55 parts of gypsum slag, 20-40 parts of iron aluminate clinker and 10-40 parts of construction wastes. The swelling agent has dual functions of plastic swelling and hardening-periodswelling, concrete shrinkage is sufficiently compensated, and the swelling agent is a concrete additive which has the complex functions of swelling, water reducing, crack resistance and the like.

Description

technical field [0001] The present invention relates to the technical field of slurry, in particular to a kind of cement-based grouting material, which is designed according to a reasonable formula by using construction waste, gypsum mud and other materials to solve the problems of sinking and cracking after the slurry is hardened. Special expansion agent for traffic engineering. Background technique [0002] Concrete expansion agent is a concrete admixture developed on the basis of expansive cement. In 1936, H. Lossier invented expansive cement. In 1958, Klien developed K-type expansive cement on the basis of this, and it was officially put into production in 1964. Japan was the first country to develop expansion agents. From 1962 to 1970, it successfully developed calcium sulfoaluminate expansion agents and lime-based expansion agents. In addition, Russia, the United States, Australia, Bulgaria, etc. have carried out the development of concrete expansion agents. Since t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12
CPCC04B40/0039C04B18/12C04B22/08C04B18/16C04B18/141C04B22/143C04B24/122C04B22/06C04B22/064C04B2103/67C04B2103/302
Inventor 黎芷杉
Owner 黎芷杉
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