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An environmentally friendly antifreezing PVA fiber cement-based composite material and a preparing method thereof

A composite material and fiber cement technology, applied in the field of civil engineering materials, can solve the problems of low temperature freezing and thawing of concrete facilities, land occupation by waste, ecological environment damage, etc., to achieve good economic and social benefits, prolong service life, and improve resistance. Freezing effect

Active Publication Date: 2017-08-29
INNER MONGOLIA UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide an environment-friendly antifreeze PVA fiber cement-based composite material and a preparation method thereof, which not only solves the problem that waste occupies a large amount of land and pollutes the natural environment, but also solves the impact of large-scale mining of rocks and river sand. The problem of irreversible damage caused by natural resources and the ecological environment, and at the same time solve the problem that the service life of concrete facilities in severe cold areas is greatly reduced due to low-temperature freezing and thawing

Method used

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with specific examples.

[0046] An environment-friendly antifreeze PVA fiber cement-based composite material, the proportion of each component is as follows:

[0047] Cement 300kg / m 3 , is P.O42.5R ordinary Portland cement, the strength grade is 42.5R;

[0048] Class I high calcium fly ash 700kg / m 3 , is the waste produced by coal combustion in the Ordos area, its free CaO content is ≥ 18%, and the sieve residue of 45 μm square hole is not more than 12%;

[0049] Water 240kg / m 3 ;

[0050] Quartz sand 160kg / m 3 , which is high-quality quartz sand produced in Tongliao area, Inner Mongolia, with a particle size of 0.075-0.125mm;

[0051] Blast furnace water quenching waste slag 360kg / m 3 , taken from the Ironworks of Baotou Iron and Steel Group in Inner Mongolia, with a particle size of 0.090-0.150mm;

[0052] Waste ceramic fine aggregate 140kg / m 3 , is the fine aggregate made of waste ceramic pr...

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Abstract

An environmentally friendly antifreezing PVA fiber cement-based composite material and a preparing method thereof are disclosed. The composite material includes 300 kg / m<3> of cement, 700 kg / m<3> of I-grade high-calcium fly ash, 240 kg / m<3> of water, 160 kg / m<3> of quartz sand, 360 kg / m<3> of blast furnace water-quenching slag, 140 kg / m<3> of waste ceramic fine aggregate, 170 kg / m<3> of waste glass micropowder, 130 kg / m<3> of stone chip powder, 30 kg / m<3> of volcanic ash, a water reducer the mass of which is 1.3% of the mass sum of the cement and the I-grade high-calcium fly ash, a thickener the mass of which is 0.11% of the mass sum of the cement and the I-grade high-calcium fly ash, a defoamer the mass of which is 1.0% of the mass sum of the cement and the I-grade high-calcium fly ash, and PVA fibers the volume of which is 2% of the total volume. The composite material overcomes the problem that waste occupies a large area of land and pollutes the environment, reduces hillstone and river sand mining, and is advantaged by being energy saving and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of civil engineering materials, and in particular relates to an environment-friendly frost-resistant PVA fiber cement-based composite material and a preparation method thereof. Background technique [0002] High-calcium fly ash is waste from coal combustion in the Ordos area, blast furnace water-quenched waste slag is metallurgical waste from the ironworks of Baotou Iron and Steel Group in Inner Mongolia, volcanic ash is natural volcanic ash in Ulanqab area of ​​Inner Mongolia, and stone powder is The waste produced in the mining, development and processing of various ores, waste ceramic fine aggregate and waste glass powder are waste ceramic products and glass products after crushing, processing, material selection and screening. At present, a large amount of high-calcium fly ash, blast furnace water quenching waste slag, waste ceramics, waste glass and stone powder are piled up around the production plant and living...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B16/06
Inventor 张菊闫长旺刘曙光张响
Owner INNER MONGOLIA UNIV OF TECH
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