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High-strength pervious concrete and preparation method thereof

A permeable concrete and high-strength technology, applied in the field of concrete, can solve problems such as increasing the burden of drainage facilities, hidden dangers of urban management safety, waterlogging, etc., and achieve the effects of reducing unit water consumption, improving workability, and high coagulation strength

Active Publication Date: 2021-08-03
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, since rainwater cannot penetrate into the ground in a short period of time, a large amount of rainwater can only be discharged into rivers through underground drainage facilities, which not only increases the burden on drainage facilities, but also easily causes urban waterlogging in case of heavy rain, causing serious safety hazards to urban management. Hidden danger

Method used

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  • High-strength pervious concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] High-strength permeable concrete is prepared from the following raw materials: 300kg of cement, 1400kg of limestone crushed stone, 150kg of zeolite powder, 10kg of polypropylene fiber, 10kg of Point-TBS polycarboxylate high-performance water reducer, 6kg of sodium citrate, Acrylate emulsion 9kg, water 92kg.

[0036] The preparation method of above-mentioned high-strength permeable concrete comprises the following steps:

[0037] Add Point-TBS type polycarboxylate high-performance water reducer and acrylate emulsion into water and stir and mix evenly to obtain a mixed solution; add cement, limestone gravel, zeolite powder, polypropylene fiber, and sodium citrate into a concrete mixer and stir Mix well, then add the mixture and continue to stir until it is evenly mixed.

Embodiment 2

[0039] High-strength permeable concrete, prepared from the following raw materials: 300kg of cement, 1400kg of limestone crushed stone, 150kg of modified zeolite powder, 10kg of polypropylene fiber, 10kg of Point-TBS polycarboxylate high-performance water reducer, sodium citrate 6kg, 9kg of acrylate emulsion, 92kg of water.

[0040] The modified zeolite powder is prepared by the following method: 1 kg of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate (also known as titanate coupling agent NDZ-201, CAS number: 67691-13 -8) Mix evenly with 20kg of ethanol to obtain a mixed solution; add 10kg of zeolite powder to the mixed solution and stir for 30 minutes at a speed of 400 rpm at 60°C, then filter with a 3000-mesh sieve, and vacuum-dry at 80°C for 4 hours, the modified zeolite powder was obtained.

[0041] The preparation method of above-mentioned high-strength permeable concrete comprises the following steps:

[0042] Add Point-TBS type polycarboxylate high-performanc...

Embodiment 3

[0044] High-strength permeable concrete, prepared from the following raw materials: 300kg of cement, 1400kg of limestone crushed stone, 150kg of modified zeolite powder, 10kg of polypropylene fiber, 10kg of sodium dibutylnaphthalenesulfonate, 6kg of sodium citrate, and 9kg of acrylate emulsion , Water 92kg.

[0045] The modified zeolite powder is prepared by the following method: 1 kg of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate (also known as titanate coupling agent NDZ-201, CAS number: 67691-13 -8) Mix evenly with 20kg of ethanol to obtain a mixed solution; add 10kg of zeolite powder to the mixed solution and stir for 30 minutes at a speed of 400 rpm at 60°C, then filter with a 3000-mesh sieve, and vacuum-dry at 80°C for 4 hours, the modified zeolite powder was obtained.

[0046] The preparation method of above-mentioned high-strength permeable concrete comprises the following steps:

[0047] Add sodium dibutylnaphthalene sulfonate and acrylate emulsion into wa...

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Abstract

The invention discloses high-strength pervious concrete and a preparation method thereof, and the high-strength pervious concrete comprises the following raw materials: cement, gravel, polypropylene fiber, a water reducing agent, a retarder and water. The modified zeolite powder, the acrylate emulsion and the sulfamate water reducing agent are added, after the concrete mixture is added, the cement particles are dispersed, the workability of the cement particles can be improved, the unit water consumption is reduced, and the flowability of the concrete mixture is improved; the concrete is high in coagulation strength, and has excellent adhesion, crack resistance, freezing resistance, seepage resistance, corrosion resistance, chloride ion permeation resistance, aging resistance and corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a high-strength permeable concrete and a preparation method thereof. Background technique [0002] In recent years, with the aggravation of global warming, the destruction of the ozone layer and the destruction of the ecological balance system, people's awareness of environmental protection has increased. Protecting the earth's environment, maintaining ecological balance, seeking harmonious development with nature, and taking the road of sustainable development have become common concerns of people. At present, the pace of my country's urbanization is accelerating, and how to achieve environmental protection and economic and social harmony in cities is attracting people's attention. [0003] The impermeable surface has many negative effects on the ecological cycle of the city. Due to the lack of water permeability on the ground, rainwater cannot penetrate into the ground, resu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B14/28C04B14/047C04B16/0633C04B24/2641C04B2103/302C04B2103/22
Inventor 张艳波王权刘仰硕聂飘董会杰张圣祖吕少仿
Owner WUHAN TEXTILE UNIV
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