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Pervious concrete and preparation method thereof

A technology for permeable concrete and concrete, which is applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of extensive utilization of construction waste, limited consumption, and low added value of products. Realize the effect of classification and efficient recycling

Inactive Publication Date: 2016-04-06
SHOUGANG ENVIRONMENTAL IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a kind of permeable concrete and its preparation method, which solves or partially solves the technical problems in the prior art that the resource utilization of construction waste is relatively extensive, the added value of the product is low, and the consumption is limited.

Method used

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  • Pervious concrete and preparation method thereof
  • Pervious concrete and preparation method thereof

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preparation example Construction

[0017] see figure 1 , based on the same inventive concept, an embodiment of the present invention provides a method for preparing permeable concrete comprising the following steps:

[0018] Step 1: Put the recycled concrete aggregate and 20% to 50% of all required water into a forced mixer, and stir for 10 to 30 seconds to pre-wet the recycled concrete aggregate.

[0019] Step 2, add all required cement, red brick recycled micropowder, fly ash, mineral powder, high-efficiency water reducer, cement and 30% to 60% of all required water, and forcefully stir for 30 to 100 seconds To achieve the effect of slurry wrapping.

[0020] Step 3, adding 10% to 20% of all required water, and continuing to stir for 20 to 40 seconds to form a cementitious mixture that meets the construction performance of the pavement, that is, permeable concrete.

[0021] Step 1 is described in detail.

[0022] The concrete recycled aggregate is obtained from concrete construction waste through crushing, ...

Embodiment 1

[0030] A kind of permeable concrete is composed of the following proportions: waste concrete recycled aggregate: 1500kg / m 3 , water 180kg / m 3 , cement 350kg / m 3 , red brick recycled powder 50kg / m 3 , fly ash 22.5kg / m 3 , mineral powder 22.5kg / m 3 , superplasticizer 5kg / m 3 And cement 5kg / m 3 .

Embodiment 2

[0032] A concrete is composed of the following proportions: waste concrete recycled aggregate: 1500kg / m 3 , water 200kg / m 3 , cement 300kg / m 3 , red brick recycled powder 100kg / m 3 , mineral powder 11.25kg / m 3 , superplasticizer 2.5kg / m 3 , cement 7.5kg / m 3 .

[0033] The preparation method of above-mentioned embodiment 1 and embodiment 2 is:

[0034] 1) Put all the waste concrete recycled aggregate first, put 50% of the water in the required water into the forced mixer according to the water absorption capacity of the concrete recycled aggregate, and stir for 20 seconds;

[0035] 2) According to the amount of binder and the package, add all the required cement, red brick recycled micropowder, fly ash, mineral powder, high-efficiency water reducer, cement and 30% of all required water, and force to stir 40 seconds;

[0036] 3) Add the remaining water in all the required water and continue to stir for 20 seconds to make the mixture achieve suitable working performance;

...

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Abstract

The invention discloses a pervious concrete and a preparation method thereof, and belongs to the technical field of resource reutilization. The concrete comprises the following components: 1400-1600kg / m<3> of concrete recycled aggregate, 120-225 kg / m<3> of water, 300-450 kg / m<3> of cement, 30-135 kg / m<3> of red brick powder regenerated micropowder, 0-22.5 kg / m<3> of fly ash, 0-22.5 kg / m<3> of ore powder, 0-7.5 kg / m<3> of a superplasticizer, and 0-15 kg / m<3> of cement. The pervious concrete and preparation method thereof waste can fully exploit the potential value of construction waste to achieve classification and efficient recycling of construction waste resource to the greatest degree.

Description

technical field [0001] The invention relates to the technical field of resource reuse, in particular to a permeable concrete and a preparation method thereof. Background technique [0002] Permeable concrete is also called porous concrete, sand-free concrete, and permeable floor. It is a kind of porous lightweight concrete made by mixing aggregate, cement and water. It does not contain fine aggregate, and the surface of coarse aggregate is covered with a thin layer of cement paste to bond with each other to form a honeycomb shape with uniform distribution of pores. The structure has the advantages of high water permeability, high bearing capacity, good decorative effect, easy maintenance, freeze-thaw resistance, high heat dissipation, etc., and is currently more and more widely used in the process of new urban development and construction. On the one hand, the internal thermal environment is formed in the process of urban activities. The traditional urban structure cannot e...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/16
CPCY02W30/91
Inventor 田明阳
Owner SHOUGANG ENVIRONMENTAL IND
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