Frost-resistant concrete and preparation method thereof

A frost-resistant concrete technology, applied in the field of frost-resistant concrete and its preparation, can solve problems such as cost increase, construction waste affecting the environment, etc., and achieve lower production costs, reduced environmental pollution, strong frost resistance and impermeability. Effect

Active Publication Date: 2014-01-01
周建平
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the amount of ordinary Portland cement in frost-resistant concrete usually accounts for a large proportion, which has caused a large increase in cost. On the other hand, a large amount of construction waste has also seriously affected the environment. A mixture that can replace part of Portland cement for frost-resistant concrete is a difficult problem to be solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of frost-resistant concrete, comprising the following components: a mixture of ordinary portland cement clinker, frost-resistant composite cement mixture, quicklime, air-entraining water reducer and ethylene glycol antifreeze in a mass ratio of 3:1 and water, based on the mass of ordinary Portland cement clinker, the ordinary Portland cement clinker, antifreeze composite cement mixture, quicklime, air-entraining water reducer and ethylene glycol anti-corrosion agent with a mass ratio of 3:1 The mixture of freezing agent and the mass percent of water are respectively 28%, 26%, 3% and 50%;

[0020] The frost-resistant composite cement mixture includes the following components in terms of mass percentage: 25% waste rock slag, 18% desulfurized gypsum, 32% fly ash, 18% sand and gravel, and the balance is mineral powder. The water-solid ratio is 0.1.

[0021] A kind of preparation method of frost-resistant concrete using above-mentioned a kind of frost-resistant concre...

Embodiment 2

[0026] A kind of frost-resistant concrete, comprising the following components: ordinary portland cement clinker, frost-resistant composite cement mixture, limestone, a mixture of air-entraining water reducer and ethylene glycol antifreeze agent with a mass ratio of 3:1 and water, based on the mass of ordinary Portland cement clinker, the ordinary Portland cement clinker, antifreeze composite cement mixture, limestone, air-entraining water reducer and ethylene glycol anti-corrosion agent with a mass ratio of 3:1 The mixture of freezing agent and the mass percent of water are respectively 48%, 46%, 4% and 110%;

[0027] The frost-resistant composite cement mixture includes the following components in terms of mass percentage: 35% of waste rock slag, 15% of desulfurized gypsum, 29% of fly ash, 16% of sandstone, and the balance of mineral powder. The water-solid ratio is 0.2.

[0028] A kind of preparation method of frost-resistant concrete using above-mentioned a kind of frost-r...

Embodiment 3

[0033] A kind of frost-resistant concrete, comprising the following components: a mixture of ordinary portland cement clinker, frost-resistant composite cement mixture, quicklime, air-entraining water reducer and ethylene glycol antifreeze in a mass ratio of 3:1 and water, based on the mass of ordinary Portland cement clinker, the ordinary Portland cement clinker, antifreeze composite cement mixture, quicklime, air-entraining water reducer and ethylene glycol anti-corrosion agent with a mass ratio of 3:1 The mixture of freezing agent and the mass percent of water are respectively 38%, 36%, 3.5% and 95%;

[0034] The frost-resistant composite cement mixture includes the following components in terms of mass percentage: 30% of waste rock slag, 12% of desulfurized gypsum, 24% of fly ash, 11% of sand and gravel, and the balance of mineral powder. The water-solid ratio is 0.14.

[0035] A kind of preparation method of frost-resistant concrete using above-mentioned a kind of frost-r...

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PUM

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Abstract

The invention discloses frost-resistant concrete and a preparation method of the frost-resistant concrete. A frost-resistant compound cement mixture is made of waste rock slag and flue gas desulfurization gypsum of construction waste, gravels, pulverized fuel ash and other materials according to a certain manufacturing method to replace nearly 50% of common potland clinker, and the frost-resistant concrete is prepared with other admixture, additives and water mixed. On one hand, the frost-resistant concrete has high frost resistance and impervious performance. On the other hand, production cost is largely lowered, environmental pollution is reduced, and obvious economic, environmental and social benefits are achieved.

Description

technical field [0001] The invention relates to the field of concrete and its preparation method, in particular to a frost-resistant concrete and its preparation method. Background technique [0002] my country has a vast territory, and the climate and environment of different regions are quite different. In the vast western and northern regions, the temperature in winter is usually very low, and ordinary concrete is easy to be frozen and cracked when pouring, which greatly affects the quality of the building; in addition, frost resistance Performance is a very important aspect of concrete durability. Frozen damage is a typical representative of the deterioration of concrete durability, and frost resistance is also closely related to other aspects of concrete durability. Therefore, the development of frost-resistant concrete is an important aspect. A task of great practical value. [0003] At present, the amount of ordinary Portland cement in frost-resistant concrete usually ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/20
Inventor 周建平赵西建
Owner 周建平
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