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Preparation method for water permeable concrete

A production method, concrete technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of not strict quality control, irregular classification management, miscellaneous sources, etc., to achieve performance improvement and increase strength , Increase the effect of adhesion

Inactive Publication Date: 2014-04-09
INNER MONGOLIA UNIVERSITY
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  • Abstract
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Problems solved by technology

However, due to its miscellaneous sources, non-standard classification management, and lax quality control, the waste concrete is mainly transported to the outskirts for open-air stacking or landfill according to domestic traditional treatment methods.

Method used

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  • Preparation method for water permeable concrete
  • Preparation method for water permeable concrete
  • Preparation method for water permeable concrete

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Embodiment Construction

[0014] The invention is a kind of permeable concrete mixed with PVA high-quality regenerated coarse aggregate. The concrete is composed of cement, high-quality regenerated coarse aggregate instead of 30% of the natural coarse aggregate, water, and additional additives determined according to performance. agent composition.

[0015] In conjunction with examples, the PVA reinforced high-quality regenerated coarse aggregate permeable concrete of the present invention is specifically described as follows: (1) 500kg chunks of old concrete are smashed into 2 block, then use a crusher to crush according to the maximum particle size of 50mm, and sieve the crushed aggregate to obtain the required 310kg of recycled coarse aggregate (2.5mm~16mm) and 13kg of recycled fine powder (particle size3 , 230.0kg / m 3 、69.0kg / m 3 , 3.45kg / m 3 , 4.6kg / m 3 . The preparation process is as follows: add polypropylene short fibers to the prepared polycarboxylate high-performance water reducer and stir...

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Abstract

The invention discloses a method for preparing water permeable concrete by using high-quality recycled coarse aggregates. The concrete is composed of cement, mixed coarse aggregates, PVA, water and a high performance water-reducing agent. By doping PVA, the high-quality recycled coarse aggregates enhance binding force between a cementing material and the aggregates and compaction strength indexes of the cement while guaranteeing water permeability. The preparation method for the water permeable concrete has practical significance for recycling waste concrete and improving performances of environment-friendly water permeable and breathable concrete.

Description

technical field [0001] The invention relates to a method for making concrete for construction, in particular to a method for making permeable concrete by using high-quality recycled coarse aggregate. Background technique [0002] Permeable concrete is a type of special concrete. Since the sand-free porous cement concrete is a lightweight porous concrete made of coarse aggregate, cement and water, it does not contain fine aggregate, and the surface of the coarse aggregate particles is covered with a layer of cement slurry, and the aggregate particles are in contact with each other. Adhere to each other to form a honeycomb structure with uniform distribution of pores. With the development of modern engineering technology and the improvement of people's requirements for quality of life, the theory and practice of ecological highway construction are reflected in the "people-oriented" highway design and are valued by the society, providing a "smooth, safe, comfortable and beauti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/16
CPCY02W30/91
Inventor 满都拉银花
Owner INNER MONGOLIA UNIVERSITY
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