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Pervious concrete and preparation method thereof

A technology of permeable concrete and cement, applied in the field of concrete, can solve the problems of complicated preparation methods of large logarithmic permeable concrete, unfavorable practical application, etc., and achieve the effects of unique artistry and ornamental, rich colors, and purifying the ecological environment.

Inactive Publication Date: 2018-11-02
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation methods of large logarithmic permeable concrete at this stage are complicated, which is not conducive to practical application.

Method used

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  • Pervious concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of the permeable concrete of the present embodiment is prepared according to the following steps:

[0024] Step 1. Stir 0.3 parts of polycarboxylate high-performance water reducer and 2.7 parts of water for 15 minutes to mix thoroughly, and spray evenly on the surface of 38 parts of single-grain gravel with a particle size of 20mm in layers to prepare mixed aggregate (based on bone It is advisable that the surface of the material is fully wet without water droplets flowing out);

[0025] Step 2, 10 parts of 42.5 grade ordinary Portland cement, 1.2 parts of biochar and 1.2 parts of coloring agent were stirred for 40 minutes and fully mixed to prepare the mixture;

[0026] Step 3: Stir the mixing agent and the mixed aggregate fully to obtain permeable concrete (it is better to use the slurry to cover the aggregate evenly and fully without flowing down the slurry).

[0027] Step 4: heat-preserve, moisturize, and cover the permeable concrete after co...

Embodiment 2

[0029] The preparation method of the permeable concrete of the present embodiment is prepared according to the following steps:

[0030] Step 1. Stir 0.5 parts of polycarboxylate high-performance water reducer and 2 parts of water for 18 minutes to mix thoroughly, and spray evenly on the surface of 35 parts of single-grain gravel with a particle size of 5mm in layers to prepare mixed aggregate (based on bone It is advisable that the surface of the material is fully wet without water droplets flowing out);

[0031] Step 2, 8 parts of 42.5 grade ordinary Portland cement, 1.1 parts of biochar and 1.5 parts of coloring agent were stirred for 30 minutes and fully mixed to prepare the mixture;

[0032] Step 3: Stir the mixing agent and the mixed aggregate fully to obtain permeable concrete (it is better to use the slurry to cover the aggregate evenly and fully without flowing down the slurry).

[0033] Step 4: heat-preserve, moisturize, and cover the permeable concrete after constr...

Embodiment 3

[0035] The preparation method of the permeable concrete of the present embodiment is prepared according to the following steps:

[0036] Step 1. Stir 0.1 part of polycarboxylate high-performance water reducer and 3 parts of water for 10 minutes to mix thoroughly, and spray evenly on the surface of 45 parts of single-grain gravel with a particle size of 8 mm to prepare mixed aggregate (based on bone It is advisable that the surface of the material is fully wet without water droplets flowing out);

[0037] Step 2, 15 parts of 42.5 grade ordinary Portland cement, 0.8 parts of biochar and 1.3 parts of coloring agent were stirred for 36 minutes and fully mixed to prepare the mixture;

[0038] Step 3: Stir the mixing agent and the mixed aggregate fully to obtain permeable concrete (it is better to use the slurry to cover the aggregate evenly and fully without flowing down the slurry).

[0039] Step 4: heat-preserve, moisturize, and cover the permeable concrete after construction. ...

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Abstract

The invention discloses pervious concrete and a preparation method thereof. The pervious concrete is prepared from the following raw materials in parts by weight: 6-15 parts of cement, 30-45 parts ofaggregate, 0.8-1.5 parts of biomass charcoal, 0.8-1.5 parts of colorant, 0.1-0.5 part of water reducer and 2-4 parts of water. According to the pervious concrete, a proper quantity of biomass charcoalis added, a cellular structure of which the holes are evenly distributed is formed in the concrete, the air permeability and the water permeability of the pervious concrete are enhanced, harmful substances in runoff water can be filtered and adsorbed while water adsorption, water storage and water seepage are carried out in a rainy day, so that a purpose of purifying the ecological environment isachieved, in addition, noise in the environment can be adsorbed, and the ecological problems of city earth surface hardening, ecological side slope damage, unsmooth atmospheric circulation, noise pollution, water and soil loss and the like are solved. In addition, the pervious concrete has rich colors, can adapt to various environments, including municipal engineering, landscape architecture, ecological roads and the like, and lays a foundation for the development of the multifunctional pervious concrete.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a permeable concrete and a preparation method thereof. Background technique [0002] In modern urban construction, most roads or slopes are made of stone slabs, cement square bricks, pipes, etc. to harden the road. Although the hardened roads and slopes are neat and durable, they lack the ability to breathe, absorb heat, and penetrate rainwater. As a result, many ecological and environmental problems have been brought about. For example, when it rains, the replenishment of groundwater by rainwater is blocked, and the groundwater level is difficult to rise. With the loss of rainwater, the surface of the city becomes more dry, which is easy to form a "heat island effect" and aggravate urban dust pollution; On the other hand, heavy rainfall and unsmooth urban drainage are likely to cause urban floods and serious consequences such as traffic jams. For the slopes on both sides of the...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/00
CPCC04B28/04C04B2111/00284C04B2111/0075C04B2201/50C04B14/02C04B14/022C04B2103/54C04B2103/302C04B38/0041
Inventor 初磊燕超
Owner NANJING FORESTRY UNIV
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