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Pervious concrete pavement brick and manufacturing method thereof

A technology for permeable concrete and a manufacturing method, which is applied to manufacturing tools, clay preparation devices, chemical instruments and methods, etc., can solve the problems of porous cement concrete pores being easily blocked, affecting the permeable effect and service life, and difficulty in dredging management, etc. The effect of solving the problem of blocking maintenance and cleaning, simple manufacturing process, and reducing labor intensity and cost

Inactive Publication Date: 2020-03-27
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] my country's cement concrete permeable pavement materials have been used in the construction of some sponge cities, but most of the existing cement concrete permeable pavement materials have a single water permeability, and the pores of porous cement concrete are easily blocked, resulting in a decrease in porosity. Difficult, high cost, seriously affecting its water permeability and service life

Method used

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  • Pervious concrete pavement brick and manufacturing method thereof
  • Pervious concrete pavement brick and manufacturing method thereof
  • Pervious concrete pavement brick and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a permeable concrete pavement brick. The permeable concrete pavement brick includes a multi-layer structure, and the permeable concrete pavement brick with the multi-layer structure has a gradient hole structure. For example, in the preferred embodiment of this embodiment, such as figure 1 As shown, the permeable concrete pavement brick 100 includes a three-layer structure, from the surface layer 01 of the permeable concrete pavement brick 100 (that is, the exposed side when laid on the road surface) to the bottom layer 02 (that is, the side that is in contact with the road surface when laid on the road surface) ) are: the first layer structure 001, the second layer structure 002 and the third layer structure 003. And the water permeability of the first layer structure 001, the second layer structure 002 and the third layer structure 003 increases successively. Preferably, the first water permeability coefficient of the first layer structure 00...

Embodiment 2

[0044] This embodiment provides a method for manufacturing permeable concrete pavement bricks, such as figure 2 As shown, the method includes the following steps:

[0045] S01: Aggregate and cementitious materials are mixed with water according to different ratios to prepare concrete with different water permeability coefficients;

[0046] In this embodiment, sand (or stones) with particle sizes between 0.5-0.9mm, 1.2-1.8mm and 2.4-4mm are selected as aggregates, PC52.5 Portland cement or PC52.5 silicic acid Salt cement and silica fume are used as cementitious materials. The aggregate cementitious material and water are mixed according to different proportions, and then stirred in a mixer to prepare concrete with different water permeability coefficients. More preferably, the following additives can also be optionally added: a water reducer accounting for 1.5-3% of the weight of the above-mentioned gelling material, an acrylate salt accounting for 0.5-3% of the weight of th...

Embodiment 3

[0069] This embodiment provides a method for manufacturing permeable concrete pavement bricks, and the similarities with Embodiment 2 will not be repeated, and the difference lies in:

[0070] In this example, 1250g of aggregate with a particle size between 0.5 and 0.9mm, 500g of PC52.5 portland cement, 14g of silica fume, and 231.3ml of water were weighed for proportioning, and after stirring, a cement with the first water permeability coefficient was obtained. The first concrete, the first water permeability coefficient is greater than or equal to 1×10 -2 cm / s; more preferably, when forming the above-mentioned second concrete, add 7.71g of water reducer, 10.3g of calcium acrylate, and 15.45mg of ammonium persulfate.

[0071] Weigh 1250 aggregates with a particle size ranging from 1.2 to 1.8 mm, 450 g of PC52.5 cement, and 202.5 ml of water for proportioning. After stirring, the second concrete with the second water permeability coefficient is obtained, and the first water pe...

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Abstract

The invention provides a pervious concrete pavement brick and a manufacturing method thereof, the pervious concrete pavement brick has a multi-layer structure, and the multi-layer structure forms a gradient pore structure in the direction from the surface layer to the bottom layer of the pervious concrete pavement brick, and has sequentially increased permeability coefficients. The gradient hole structure can effectively prevent or reduce the blockage of pores caused by clay and the like in rainwater, and effectively solves the problem of maintenance and cleaning of porous concrete pavement blockage, thereby prolonging the service life of bricks in concrete, and reducing the labor intensity and cost of sponge city maintenance. In addition, according to the manufacturing method of the pervious concrete pavement brick, concrete with different pervious coefficients is sequentially and uniformly distributed according to the descending order of the pervious coefficients, and a multi-layer structure is formed. The manufacturing process is simple, the preparation cost is low, no special process is needed, production is easy, and use is convenient.

Description

technical field [0001] The invention relates to the technical field of permeable bricks, in particular to a permeable concrete pavement brick and a manufacturing method thereof. Background technique [0002] In order to prevent rain, snow and other natural disasters from causing urban waterlogging and other hazards, the construction of sponge cities has attracted more and more attention and favor. [0003] Permeable brick paving materials are one of the important materials for the construction of sponge cities. Since the 1930s, the European and Japanese Cement Associations have laid permeable materials on urban parking lots, passages or roads with low traffic volume; in the 1970s, permeable paving bricks The material is widely used in urban construction, and became the main paving material for roads in developed countries in the 1990s. Permeable paving materials have maintained a good momentum of development, and the technology continues to improve. [0004] From the early...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C5/06E01C11/22B28B3/00B28B11/24B28C5/00C04B28/04
CPCB28B3/00B28B11/245B28C5/003C04B28/04E01C5/065E01C11/225C04B2103/302C04B24/04C04B22/14C04B14/02C04B18/146
Inventor 王琦宋鹏杨中喜张京波
Owner UNIV OF JINAN
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