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permeable concrete

A technology of permeable concrete and portland cement, which is applied in the field of building materials, can solve the problems such as the easy decrease of the strength of permeable concrete, and achieve the effect of benefiting cross-linking network, improving compatibility and improving durability

Active Publication Date: 2021-03-19
湖北绿缘新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, because pervious concrete generally needs to maintain certain through-holes to meet the requirements of water permeability, the internal structure of pervious concrete is relatively loose, so that the strength of pervious concrete is easy to decrease, and there is still room for improvement.

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Examples

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Embodiment 1

[0054] A permeable concrete, comprising the following components in parts by mass:

[0055] Water 4.5kg; Portland cement 15kg; slag powder 32kg; limestone gravel 60kg; water reducing agent 0.75kg; steel fiber 3kg; rubber emulsion 9kg; silane coupling agent 3kg.

[0056] In this embodiment, limestone crushed stone with a particle size of 10 mm is used in Lingshou County Xinyi Mineral Products Processing Plant.

[0057] The preparation method of permeable concrete is as follows:

[0058] (1) In the cement mixer, under normal temperature conditions, add 15kg of Portland cement and stir at a speed of 200r / min;

[0059] (2) Add 4.5kg of water, 0.75kg of water reducing agent, 9kg of rubber emulsion, and 3kg of silane coupling agent while stirring, and after stirring evenly, a premix is ​​obtained;

[0060] (3) In the gravel mixer, under normal temperature conditions, add 32kg of slag micropowder, 60kg of limestone gravel, and 3kg of steel fiber, stir at a speed of 200r / min, and ob...

Embodiment 2

[0063] A permeable concrete, comprising the following components in parts by mass:

[0064] Water 5.25kg; Portland cement 17.5kg; slag fine powder 38kg; limestone gravel 70kg; water reducing agent 0.87kg; steel fiber 4.5kg; rubber emulsion 10.5kg; silane coupling agent 3.5kg.

[0065] In this embodiment, limestone crushed stones with a particle size of 15 mm were used in Lingshou County Xinyi Mineral Products Processing Plant.

[0066] The preparation method of permeable concrete is as follows:

[0067] (1) In the cement mixer, under normal temperature conditions, add 17.5kg of Portland cement and stir at a speed of 200r / min;

[0068] (2) Add 5.25kg of water, 0.87kg of water reducing agent, 10.5kg of rubber emulsion, and 3.5kg of silane coupling agent while stirring, and after stirring evenly, a premix is ​​obtained;

[0069] (3) Add 38kg of slag micropowder, 70kg of limestone gravel, and 4.5kg of steel fiber to the sandstone mixer under normal temperature conditions, stir a...

Embodiment 3

[0072] A permeable concrete, comprising the following components in parts by mass:

[0073] Water 6kg; Portland cement 20kg; slag powder 41kg; limestone gravel 80kg; water reducing agent 1kg; steel fiber 6kg; rubber emulsion 12kg; silane coupling agent 4kg.

[0074] In this embodiment, limestone crushed stones with a particle size of 20 mm from Xinyi Mineral Products Processing Plant in Lingshou County were used.

[0075] The preparation method of permeable concrete is as follows:

[0076] (1) In the cement mixer, under normal temperature conditions, add 20kg of Portland cement and stir at a speed of 200r / min;

[0077] (2) Add water 6kg, water reducer 1kg, rubber emulsion 12kg, silane coupling agent 4kg while stirring, after stirring evenly, obtain the premix;

[0078] (3) In the gravel mixer, under normal temperature conditions, add 41kg of slag micropowder, 80kg of limestone gravel, and 6kg of steel fiber, stir at a speed of 200r / min, and obtain aggregate after stirring ev...

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Abstract

The invention relates to the field of building materials and provides previous concrete to solve the problem that previous concrete with loose inner structure has poor strength. The previous concreteherein comprises, by mass, 4.5-6 parts of water, 15-20 parts of Portland cement, 32-41 parts of slag micropowder, 60-80 parts of coarse aggregate which is crushed Chongqing limestone, 0.75-1 part of awater reducer, 3-6 parts of steel fiber, 9-12 parts of rubber emulsion, and 3-4 parts of a silane coupling agent. The addition of the slag micropowder and steel fiber helps improve the durability ofthe previous concrete and improve compressive strength of the previous concrete, so that the formed pervious concrete rarely cracks.

Description

technical field [0001] The invention relates to the field of building materials, more specifically, it relates to a kind of permeable concrete. Background technique [0002] Permeable concrete, also known as porous concrete, is a kind of porous lightweight concrete made by mixing aggregate, cement, reinforcing agent and water, and it does not contain fine aggregate. Permeable concrete consists of a thin layer of cement paste coated on the surface of coarse aggregate and bonded with each other to form a honeycomb structure with uniform distribution of pores, which is inherently air-permeable, water-permeable and light in weight. [0003] However, because pervious concrete generally needs to maintain certain through-pores to meet the requirements of water permeability, the internal structure of pervious concrete is relatively loose, so that the strength of pervious concrete is easy to decrease, and there is still room for improvement. Contents of the invention [0004] In v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00284C04B2201/50C04B18/141C04B18/12C04B2103/302C04B14/48C04B24/24C04B24/42
Inventor 胡林刘栋卞周宏
Owner 湖北绿缘新型材料科技有限公司
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