Permeable concrete

A technology of permeable concrete and parts by weight, applied in the field of concrete, can solve the problems of restricting the application of permeable concrete and low strength, and achieve the effects of excellent water permeability, improved strength and high mechanical properties

Active Publication Date: 2017-09-12
广东信强混凝土有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Permeable concrete is characterized by the use of single-grain coarse aggregate, cement slurry or a thin layer of mortar with a small amount of fine aggregate wrapped on the surface of coarse aggregate particles, as a cementing layer between aggregate particles, forming an aggregate pore structure Pervious concrete contains more pores inside, so it has good water permeability, but at the same time, its strength is lower than ordinary concrete, which limits the application of pervious concrete

Method used

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Examples

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Effect test

Embodiment 1

[0023] Embodiment 1: A kind of permeable concrete, including coarse aggregate, cement, water, admixture, mesoporous material, reinforcing fiber. In terms of parts by weight, refer to Table 1 for the above components. Among them, artificial crushed stone with a particle size of 5-10mm is selected as the coarse aggregate. The mesoporous material is silicon-based mesoporous material, and the reinforcing fiber is nano-carbon fiber. The additive is slaked lime.

[0024] The preparation method of the permeable concrete is as follows: Weigh the mesoporous material, reinforcing fiber, and water in the formulated amount, mix them evenly, then put in the cement, coarse aggregate, and admixture in the formulated amount, and mix to obtain the permeable concrete.

[0025] Concrete compressive strength test: Refer to the GB50204-2015 Concrete Structure Engineering Construction Quality Acceptance Code to detect the grade of compressive strength of permeable concrete, and list the test resu...

Embodiment 2

[0027] Embodiment 2: a kind of permeable concrete, the difference from embodiment 1 is that the admixture is 25 parts of nano silicon dioxide and 25 parts of nano calcium carbonate. The concrete compressive strength test and concrete high temperature performance test were carried out with reference to Example 1, and the results are listed in Table 1.

Embodiment 3

[0028] Embodiment 3: a kind of permeable concrete, the difference from embodiment 2 is that 30 parts of external admixtures are added to the permeable concrete.

[0029] The preparation method of the permeable concrete is as follows: Weigh the mesoporous material, reinforcing fiber, and water in the formulated amount, mix them evenly, and then put in the formulated amount of cement, coarse aggregate, admixture, and external admixture, and obtain the permeable concrete after stirring. With reference to the method in Example 1, the concrete compressive strength test and concrete high temperature performance test were carried out, and the results are listed in Table 1.

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Abstract

Theinvention discloses a permeable concrete. The permeable concrete is prepared from the following components in parts by weight: 1500-1700 parts of coarse aggregate, 300-550 parts of cement, 90-120 parts of water, 30-80 parts of admixture, 50-150 parts of mesoporous material, and 150-220 parts of reinforced fiber. The permeable concrete has the following advantages and effects: first, the mesoporous material, reinforced fiber and cement in the permeable concrete are mixed and then form an adhesive layer in the coarse aggregate particles, the reinforced fiber in the adhesive layer is connected through the mesoporous material so as to form a mesh structure, so that the strength of the permeable concrete is improved; second, due to the mesh structure in the adhesive layer on the surface of the coarse aggregate particle, the permeable concrete has higher mechanical property at high temperature, and the high temperature resistance of the permeable concrete is improved; and third, the coarse aggregate is of a single grain level, so that the permeable concrete has excellent permeability, has ecological functions of discharging water, reducing noise and adjusting ground temperature and humidity, protects the environment, and achieves the effect of good permeability, environment protection, high strength, high temperature resistance, and wide application range.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a permeable concrete. Background technique [0002] Permeable concrete is an eco-friendly concrete with continuous pores made by a special process. It has both certain strength and certain air and water permeability. Permeable concrete has been widely used in road engineering, municipal engineering and garden engineering, and has achieved good social, environmental and ecological benefits. The pavement paved with permeable concrete has good drainage and noise reduction capabilities, and has ecological functions such as regulating surface temperature and humidity, and has been widely used in many countries. [0003] Permeable concrete is characterized by the use of single-grain coarse aggregate, cement slurry or a thin layer of mortar with a small amount of fine aggregate wrapped on the surface of coarse aggregate particles, as a cementing layer between aggregate particles, forming an agg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/00
CPCC04B28/00C04B2111/00284C04B2201/50C04B2201/52C04B14/02C04B14/386C04B20/006C04B22/064C04B20/002C04B38/0038C04B14/062C04B14/28C04B20/008C04B18/08C04B18/141
Inventor 郑利强
Owner 广东信强混凝土有限公司
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