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Sponge city high-strength recycled aggregate concrete and preparation method thereof

A recycled aggregate and sponge city technology, applied in the field of building materials, can solve the problems of performance degradation of recycled aggregate concrete, and achieve performance improvement, stability, compressive strength, and slow performance decay rate

Active Publication Date: 2021-11-30
安徽鋐硕绿色建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a sponge city high-strength recycled aggregate concrete and its preparation method, which solves the problem that the performance of recycled aggregate concrete decreases significantly after being used for a long time

Method used

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  • Sponge city high-strength recycled aggregate concrete and preparation method thereof
  • Sponge city high-strength recycled aggregate concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0047] Please refer to figure 1 and figure 2 ,in, figure 1 Schematic diagram of the external structure of the soaking device provided by the present invention; figure 2 for figure 1The schematic diagram of the internal structure of the body is shown. Sponge city high-strength recycled aggregate concrete, including the following raw materials in parts by weight:

[0048] 600 parts of the reinforced recycled coarse aggregate, 400 parts of cement, 100 parts of water, 50 parts of steel slag powder, 35 parts of limestone powder, 30 parts of nano silicon dioxide, 20 parts of graphene oxide powder, 15 parts of polyacrylate, water glass 10 parts, 5 parts of water reducing agent, 4 parts of superabsorbent resin, 6 parts of modified reinforcing agent;

[0049] Wherein, the modified reinforcing agent includes the following raw materials in parts by weight:

[0050] 15 parts of nano-calcium carbonate, 12 parts of polyvinyl alcohol, 8 parts of diboron trioxide, 4 parts of aminotrim...

no. 2 example

[0071] Based on the first embodiment of the present invention, a sponge city high-strength recycled aggregate concrete and its preparation method, the second embodiment of the present invention provides another sponge city high-strength recycled aggregate concrete and its preparation method, wherein the first The second embodiment does not hinder the independent implementation of the technical solution of the first embodiment.

[0072] Specifically, the present invention provides another sponge city high-strength recycled aggregate concrete and its preparation method with the following differences:

[0073] Reinforced recycled coarse aggregate 700 parts, cement 500 parts, water 150 parts, steel slag powder 70 parts, limestone powder 55 parts, nano silicon dioxide 45 parts, graphene oxide powder 30 parts, polyacrylate 25 parts, water glass 17 parts , 8 parts of water reducing agent, 6 parts of superabsorbent resin, 9 parts of modified reinforcing agent;

[0074] Wherein, the m...

no. 3 example

[0093] Based on the first embodiment of the present invention, a sponge city high-strength recycled aggregate concrete and its preparation method, the third embodiment of the present invention provides another sponge city high-strength recycled aggregate concrete and its preparation method, wherein the first The three embodiments do not hinder the independent implementation of the technical solution of the first embodiment.

[0094] Specifically, the present invention provides another sponge city high-strength recycled aggregate concrete and its preparation method with the following differences:

[0095] Comprising the following raw materials in parts by weight:

[0096] Reinforced recycled coarse aggregate 800 parts, cement 600 parts, water 200 parts, steel slag powder 100 parts, limestone powder 70 parts, nano silicon dioxide 60 parts, graphene oxide powder 40 parts, polyacrylate 30 parts, water glass 15 parts , 10 parts of water reducing agent, 8 parts of superabsorbent re...

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Abstract

The invention provides sponge city high-strength recycled aggregate concrete and a preparation method of the high-strength recycled aggregate concrete. According to the sponge city high-strength recycled aggregate concrete and the preparation method thereof, the sponge city high-strength recycled aggregate concrete is prepared from the following raw materials in parts by weight: 600 to 800 parts of reinforced recycled coarse aggregate, 400 to 600 parts of cement and 100 to 200 parts of water. According to the sponge city high-strength recycled aggregate concrete and the preparation method thereof, the physical property and mechanical property of the concrete are further improved by adding the modified reinforcing agent, the strength of the recycled aggregate can be effectively improved, meanwhile, internal polyvinyl alcohol can permeate into the recycled coarse aggregate, the pores and the cracks of the recycled coarse aggregate are filled with polyvinyl alcohol, and a film is formed to cover the surface pores of the recycled coarse aggregate so as to provide the effective protection effect on the recycled coarse aggregate, such that the external environment influence is not easily generated, and the connection among the raw materials can be reinforced so as to provide the stable and lasting compressive strength, wear resistance, freezing resistance and deformation resistance for the concrete, and therefore, the concrete can better adapt to a high-pressure environment.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a sponge city high-strength recycled aggregate concrete and a preparation method thereof. Background technique [0002] Sponge city is a new generation of urban stormwater management concept. It means that the city can be like a sponge, and has good elasticity in adapting to environmental changes and dealing with natural disasters caused by rainwater. It can also be called "water elastic city". When it rains, it absorbs, stores, infiltrates, and purifies water, and releases and utilizes the stored water when needed, so as to realize the free migration of rainwater in the city. Starting from ecosystem services, constructing water ecological infrastructure across scales and combining multiple types of specific technologies to build water ecological infrastructure is the core of the sponge city. [0003] The substantive application of sponge city materials shows excellent water pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B24/26C04B20/12C04B18/16
CPCC04B28/00C04B40/0039C04B20/12C04B18/16C04B2111/00008C04B2201/50C04B2201/20C04B18/142C04B14/28C04B14/06C04B14/024C04B24/2641C04B12/04C04B2103/302C04B2103/0051C04B24/2623C04B22/0013C04B24/003C04B20/1085C04B20/107C04B20/1029Y02W30/91
Inventor 刘林侯小立李军
Owner 安徽鋐硕绿色建材科技有限公司
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