A kind of permeable compressive concrete and preparation method thereof

A concrete and cement technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problem of affecting the water permeability of permeable concrete, poor structural strength of sand-free porous permeable concrete, and reducing the effective void ratio of aggregate To improve the compactness, ensure the water permeability and improve the structural strength
CN112408923BActive Publication Date: 2022-05-17湖北云海混凝土有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
湖北云海混凝土有限公司
Publication Date
2022-05-17

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Abstract

The application relates to the technical field of building materials, and specifically discloses a permeable compression-resistant concrete and a preparation method thereof. The permeable and compressive concrete is made of the following raw materials in parts by weight: 1100-1400 parts of gravel, 150-250 parts of fine sand coated with an active calcium oxide layer on the surface, 150-220 parts of cement, 120-200 parts of water, coal 25-65 parts of ash, 2-5 parts of water-reducing agent; the preparation method is: under normal temperature, weigh gravel, fine sand, cement, water, coal ash, and water-reducing agent in parts by weight; Mix stone, cement and coal ash evenly to make a mixture; then add water to the mixture, stir for 5 to 10 minutes, then add fine sand, continue stirring for 3 to 5 minutes, add water reducer, and mix evenly to obtain a finished permeable concrete product. The permeable compressive concrete of the present application has the effect of improving the defect of its low compressive strength.
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Description

technical field

[0001] The application relates to the technical field of building materials, more specifically, it relates to a water-permeable compression-resistant concrete and a preparation method thereof. Background technique

[0002] The current permeable concrete is mainly sand-free porous permeable concrete. The surface of the gravel in the porous permeable concrete is coated with a thin layer of cement paste bonded to the gravel, thereby forming a honeycomb structure with uniform distribution of pores, so it has air permeability, Capillarity is not obvious, the amount of cement is small, and the construction is simple. It is generally used in the field of road slope protection and permeable bricks.

[0003] The related technology is CN110357500A Chinese invention patent discloses a kind of permeable concrete, its raw materials include the following components in parts by weight: 10-13 parts of cement; 19-24 parts of river sand; 47-53 parts of aggregate; 0.19-0.23 pa...

Claims

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