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Composite aggregate impounding concrete and preparation method thereof

A technology of concrete and aggregate, applied in the field of composite aggregate water storage concrete and its preparation, can solve the problems of wasting resources, permeable concrete does not have water retention function, etc., and achieve quality reduction, good promotion and practical value, and strong water retention function Effect

Inactive Publication Date: 2018-01-12
HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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Problems solved by technology

At this stage, there are relatively few concretes with water permeability and water storage functions, mainly pervious concrete, but pervious concrete does not have water retention function, so there are defects to a certain extent. At the same time, at this stage, most of the concrete aggregates are crushed stone, a great waste of resources

Method used

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  • Composite aggregate impounding concrete and preparation method thereof
  • Composite aggregate impounding concrete and preparation method thereof

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preparation example Construction

[0029] A preparation method of composite aggregate water storage concrete, comprising the following steps:

[0030] Step 1, prepare materials: prepare materials according to the designed parts by weight of each material;

[0031] Step 2, pre-configure lightweight aggregate: Stir the pumice, ceramsite, and river sand materials evenly in a dry environment;

[0032] Step 3, light aggregate improvement treatment: add water to the mixture obtained in step 2, the amount of water is 70-75% of the water consumption required for the light aggregate to reach the required water absorption in step 2, and stir;

[0033] Step 4, adding cement and fly ash: adding 10% water, cement and fly ash required for composite aggregate water storage concrete to the mixture obtained in step 3 and stirring;

[0034] Step 5, adding water reducing agent: add 40-50% of water required for composite aggregate water storage concrete to the mixture obtained in step 4 and stir with the water reducing agent requ...

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Abstract

The invention provides composite aggregate impounding concrete and a preparation method thereof. The composite aggregate impounding concrete comprises the following components in parts by weight: 160-180 parts of water, 440-470 parts of cement, 70-90 parts of river sand, 420-440 parts of pumice stone, 350-370 parts of ceramsite, 70-90 parts of coal ash and 2.5-3.0 parts of a water reducer. Pumicestone and ceramsite are utilized to completely replace natural gravels, so that the weight of the impounding concrete per se is reduced, the material construction cost is lowered, favorable performance indexes are achieved, stacking of waste is avoided, the cyclic utilization effect is achieved, and environmental protection is shown. As aggregate adopts pumice stone, certain corrosion resistance is achieved, and the damage degree of concrete is reduced to a certain degree.

Description

technical field [0001] The invention belongs to the technical field of building material preparation, and in particular relates to a composite aggregate water storage concrete and a preparation method thereof. Background technique [0002] Water-storage concrete is a new green and environmentally friendly material, which not only has a certain strength but also has a strong water storage function and water penetration function. Its high porosity enables the heat above the road to be exchanged with the ground below, and the water stored in the material can be actively released when needed, achieving the effect of alleviating the urban heat island effect. At this stage, there are relatively few concretes with water permeability and water storage functions, mainly pervious concrete, but pervious concrete does not have water retention function, so there are defects to a certain extent. At the same time, at this stage, most of the concrete aggregates are crushed Stone, a waste o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/20
Inventor 麻建锁李瑞丰蔡焕琴李明宇李雪娜王丽楠程岚强亚林郭腾王建岳
Owner HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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