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High-strength permeable pavement brick and preparation method thereof

A permeable pavement brick, high-strength technology, applied in ceramic products, other household utensils, sustainable waste treatment, etc., can solve the problems of unsatisfactory strength of permeable pavement bricks, large amount of cement, and insufficient water permeability, etc., to reduce mining Even waste, water permeability improvement, effect of improving water permeability

Inactive Publication Date: 2019-04-19
GUIZHOU ANKAIDA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Waste concrete blocks account for a large proportion of construction waste, and can be made into bricks with different properties according to needs, so as to realize the reuse of resources, reduce environmental pollution, and reduce the cost of brick making, which is in line with my country's sustainable development strategy. At present, about There are many reports on the use of waste concrete blocks to prepare multifunctional bricks, such as patent CN201810610868.1 disclosing waste concrete, coal gangue, ceramsite, gravel, quartz sand, red mud, calcined kaolin, cement, modified wheat husks, composite fibers and The water reducing agent is prepared according to a certain ratio, but the strength of the permeable pavement brick prepared by it is not ideal, the water permeability is not excellent enough, and the amount of cement is also large

Method used

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  • High-strength permeable pavement brick and preparation method thereof

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Effect test

Embodiment 1

[0029] A high-strength permeable pavement brick, comprising the following raw materials in parts by weight: 25kg of waste concrete blocks, 15kg of gypsum powder, 5kg of river sand, 10kg of Portland cement, 5kg of sepiolite, 0.1kg of polycarboxylic acid, 0.1kg of organic silicon, Water reducer 1kg, modified additive 5kg, water 10kg.

[0030] The modified additive is formed by mixing cornstarch and wheat husk flour in an equal mass ratio.

[0031] The preparation method of the above-mentioned high-strength permeable pavement brick comprises the following steps:

[0032] (1) Take waste concrete blocks, gypsum powder, river sand, Portland cement, sepiolite, polycarboxylic acid, organic silicon, water reducing agent, modified additives, water according to the formula, and set aside;

[0033] (2) After mixing waste concrete blocks and sepiolite, crush them into particles with a particle size of ≤1 mm;

[0034] (3) Put the step (2) granules, gypsum powder, river sand, Portland ceme...

Embodiment 2

[0040] A high-strength permeable pavement brick, comprising the following raw materials in parts by weight: 35kg of waste concrete blocks, 25kg of gypsum powder, 10kg of river sand, 15kg of Portland cement, 10kg of sepiolite, 0.5kg of polycarboxylic acid, 0.5kg of organic silicon, Water reducer 2kg, modified additive 10kg, water 20kg.

[0041] The modified additive is prepared by mixing cornstarch and wheat husk flour in an equal mass ratio.

[0042] The corn starch is calcined at high temperature in vacuum, the calcining temperature is 220° C., and the calcining time is 6 hours.

[0043] Described wheat husk flour is processed in the following way:

[0044] (1) Put wheat husk powder into a stirring tank, add NaOH solution to soak for 45min, then heat to 75°C and stir for 2h, cool the particle suspension, filter out water, wash twice with deionized water, and then Drying under conditions until the water content in the wheat husk is <1%, to obtain pretreated wheat husk powder...

Embodiment 3

[0055] A high-strength permeable pavement brick, comprising the following raw materials in parts by weight: 25kg of waste concrete blocks, 25kg of gypsum powder, 5kg of river sand, 15kg of Portland cement, 10kg of sepiolite, 0.1kg of polycarboxylic acid, 0.5kg of organic silicon, Water reducer 1kg, modified additive 5kg, water 20kg.

[0056] The modified additive is prepared by mixing cornstarch and wheat husk flour in an equal mass ratio.

[0057] The cornstarch is calcined at high temperature in vacuum, the calcining temperature is 200° C., and the calcining time is 5 hours.

[0058] Described wheat husk flour is processed in the following way:

[0059] (1) Put wheat husk powder into a stirring tank, add NaOH solution to soak for 60min, then heat to 85°C and stir for 3h, cool the particle suspension, filter out water, wash with deionized water three times, and then Drying under conditions until the water content in the wheat husk is <1%, to obtain pretreated wheat husk pow...

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Abstract

The invention belongs to the technical field of permeable bricks, in particular to a high-strength permeable pavement brick and a preparation method thereof. By using waste concrete block, gypsum powder, river sand, Portland cement, sepiolite, polycarboxylic acid, organosilicone, a water reducing agent, a modified additive and water as raw materials and by adjusting the ratio of the raw materials,mechanical property of the product is improved. The water permeable brick has the characteristics of high strength, high water permeability, low cost, long service life and wear resistance.

Description

technical field [0001] The invention relates to the technical field of permeable bricks, in particular to a high-strength permeable pavement brick and a preparation method thereof. Background technique [0002] Building waste refers to the dregs, spoils, waste materials, wood, and packaging materials generated during the construction, laying, demolition, or repair of various buildings, structures, and buildings by construction units or individuals. and other wastes, among which, broken bricks, concrete, mortar, and packaging materials account for about 80% of the total; if these wastes cannot be disposed of in time, they will easily lead to soil, water and air pollution, and endanger human health; With the continuous acceleration of urbanization, the production of construction waste continues to increase, accounting for 30-40% of urban waste. Most of the waste is transported to the outskirts of the city for open storage or simple landfill without any treatment. The stock of co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/08C04B24/38C04B20/02C04B18/24
CPCC04B18/24C04B20/023C04B24/38C04B28/14C04B2201/50C04B2201/52C04B2111/00284Y02W30/91
Inventor 吴义德钟红莉靳明灿袁图忠张文栋梁远鹏周雁鸣赵刚柯刚
Owner GUIZHOU ANKAIDA IND
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