High-strength pervious concrete suitable for sponge city construction and preparation method of high-strength pervious concrete

A permeable concrete and sponge city technology, applied in the field of concrete materials, can solve problems such as short service life, low structural strength, and easy damage, and achieve the effects of improving anti-aging, good corrosion resistance, and good toughness

Active Publication Date: 2021-09-24
扬州通惠系统集成科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing concrete has low structural strength, low water permeability, prone to water accumulation, easy to damage, and short service life

Method used

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  • High-strength pervious concrete suitable for sponge city construction and preparation method of high-strength pervious concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The invention provides a high-strength permeable concrete suitable for sponge city construction, which comprises: 12.24% cement, 4.56% composite fiber, 3.26% composite reinforcing agent, 5.45% water, 0.224% Water reducer, 0.214% quick-setting and early-strength agent, 74.052% aggregate; the composite fiber includes: 25.40% glass fiber, 28.30% basalt fiber, 46.30% polypropylene fiber in terms of weight percentage; the The composite reinforcing agent includes: 35.40% nano-silicon dioxide, 27.50% nano-zirconium diboride powder, and 37.10% nano-silicon nitride according to weight percentage;

[0028] The water reducer is a polycarboxylate water reducer; the quick-setting early strength agent is composed of triethanolamine, sodium silicate and lithium carbonate, and the mass ratio of the triethanolamine, sodium silicate and lithium carbonate is 3:4 :3;

[0029] The present invention also provides a preparation method of high-strength permeable concrete suitable for sponge c...

Embodiment 2

[0040] The difference from Example 1 is that it includes: 12.86% cement, 5.14% composite fiber, 3.84% composite reinforcing agent, 5.95% water, 0.246% water reducer, 0.236% quick-setting Accelerator, 71.728% aggregate; the composite fiber includes: 26.60% glass fiber, 28.90% basalt fiber, 44.50% polypropylene fiber; the composite reinforcing agent includes: : 36.60% nano silicon dioxide, 28.10% nano zirconium diboride powder, 35.30% nano silicon nitride.

Embodiment 3

[0042] The difference from Examples 1-2 is that it includes: 12.55% cement, 4.85% composite fiber, 3.55% composite reinforcing agent, 5.70% water, 0.235% water reducing agent, 0.225% quick-setting early strength agent, 72.89% aggregate; the composite fiber includes: 26.00% glass fiber, 28.60% basalt fiber, 45.40% polypropylene fiber; the composite reinforcing agent is calculated by weight The percentage calculation includes: 36.00% nano silicon dioxide, 27.80% nano zirconium diboride powder, 36.20% nano silicon nitride.

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PUM

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Abstract

The invention discloses high-strength pervious concrete suitable for sponge city construction and a preparation method, and particularly relates to the technical field of concrete materials, and the high-strength pervious concrete comprises cement, composite fibers, a composite reinforcing agent, water, a water reducing agent, a quick-setting early strength agent and aggregate. The composite fiber and the composite reinforcing agent in the formula are matched for use, so that the strength and the water permeability of the concrete can be effectively enhanced; the glass fibers, the basalt fibers and the polypropylene fibers are matched for use, so that the internal structural strength of the concrete can be further enhanced, and meanwhile, the composite fibers form a fiber network in the concrete, so that the high water permeability of the concrete can be effectively enhanced; and the nano silicon dioxide, the nano zirconium diboride powder and the nano silicon nitride in the composite reinforcing agent are matched to modify the composite fibers, so that the structural strength and the self performance of the composite fibers can be effectively enhanced, and the structural strength and the water permeability of the concrete are further improved.

Description

technical field [0001] The invention relates to the technical field of concrete materials, more specifically, the invention relates to a high-strength permeable concrete suitable for sponge city construction 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 responding to natural disasters caused by rainwater. It can also be called "water elastic city". Sponge city construction should follow the principles of ecological priority, combine natural approaches with artificial measures, and ensure the safety of urban drainage and waterlogging, maximize the accumulation, infiltration and purification of rainwater in urban areas, and promote the utilization of rainwater resources and ecological environment protection. In the process of sponge city construction, the systematic nature of natu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/00284C04B2201/50C04B14/42C04B14/4643C04B16/0633C04B14/062C04B14/321C04B14/328C04B24/122C04B22/10C04B14/02C04B2103/302
Inventor 徐寿会徐寿松晏翔徐兵晏春杏任瑞国徐健赵维勤王明霞王启云
Owner 扬州通惠系统集成科技有限公司
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