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A high-strength permeable concrete suitable for sponge city construction and its preparation method

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: 2022-06-24
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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  • A high-strength permeable concrete suitable for sponge city construction and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The present 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 reducing agent, 0.214% quick-setting and early strength agent, 74.052% aggregate; the composite fibers, calculated by weight percentage, include: 25.40% glass fiber, 28.30% basalt fiber, 46.30% polypropylene fiber; the The composite reinforcing agent, calculated by weight percentage, includes: 35.40% of nano-silicon dioxide, 27.50% of nano-zirconium diboride powder, and 37.10% of nano-silicon nitride;

[0028] The water-reducing agent is a polycarboxylate water-reducing agent; the quick-setting and 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-...

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 reducing agent, 0.236% quick-setting Early-strength agent, 71.728% aggregate; the composite fiber includes: 26.60% glass fiber, 28.90% basalt fiber, 44.50% polypropylene fiber according to the weight percentage; the composite reinforcing agent includes, according to the weight percentage : 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, calculated by weight percentage, it includes: 12.55% cement, 4.85% composite fiber, 3.55% composite reinforcing agent, 5.70% water, 0.235% water reducing agent, 0.225% 72.89% of aggregate; the composite fiber includes: 26.00% glass fiber, 28.60% basalt fiber, 45.40% polypropylene fiber by weight; the composite reinforcing agent is based on 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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Abstract

The invention discloses a high-strength permeable concrete suitable for sponge city construction and a preparation method thereof, specifically relates to the technical field of concrete materials, including: cement, composite fiber, composite reinforcing agent, water, water reducing agent, and quick-setting early-strength agent and aggregate. The combined use of composite fiber and composite reinforcing agent in the formula of the present invention can effectively strengthen the strength and water permeability of concrete; the combined use of glass fiber, basalt fiber and polypropylene fiber can further strengthen the internal structural strength of concrete, and at the same time the composite fiber The fiber network is formed inside the concrete, which can effectively strengthen the high water permeability of the concrete. The combination of nano-silica, nano-zirconium diboride powder and nano-silicon nitride in the composite reinforcing agent is used to modify the composite fiber, which can effectively Strengthen the structural strength and self-performance of composite fibers, thereby improving the structural strength and water permeability of concrete.

Description

technical field [0001] The present invention relates to the technical field of concrete materials, and more particularly, the present invention relates to a high-strength permeable concrete suitable for sponge city construction and a preparation method. 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 flexibility in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called a "water elastic city". The construction of sponge cities should follow the principles of ecological priority, combine natural ways with artificial measures, and maximize the accumulation, infiltration and purification of rainwater in urban areas on the premise of ensuring the safety of urban drainage and waterlogging prevention, and promote the utilization of rainwater resources. and ecological environment protection. In the process of sponge...

Claims

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Application Information

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Patent Type & Authority Patents(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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