Ecological environment protection type pavement tile and producing process thereof

Abstract

The invention belongs to the field of environment-friendly energy-saving building materials, and in particular relates to an ecological environment-friendly footway brick and a production process thereof. The brick comprises a brick body (1), and is characterized in that the upper surface of the brick body (1) is provided with a groove (3); the position of the groove (3) of the brick body (1) is provided with a through hole (2) in the longitudinal direction; the brick body adopts materials (1) comprising a cementitious material, aggregate and activator; the cementitious material contains slag micro-powder, red mud, C-type fly ash and kieselguhr; the aggregate adopts waste residue particles; and the activator contains polycarboxylic acid water reducing agent, power plant desulphurization gypsum, aluminum sulfate slag and fly ash. The production process comprises two parts of: 1) preparing raw materials according to the requirements, and 2) physically molding, which is to install a column-type body on a brick press mold, have the through hole (2) when the brick is physically molded and extrude the groove (3) on the surface of the brick body. The footway brick has the advantages of simple structure and high water seepage efficiency, and can effectively reduce urban heat island effect.

Description

technical field [0001] The invention belongs to the field of environment-friendly and energy-saving building materials, and in particular relates to an ecological environment-friendly pavement brick. Background technique [0002] At present, permeable pavement bricks at home and abroad can be roughly divided into the following types: [0003] 1) From the perspective of curing methods: ① firing type; ② autoclaved (raised) type; ③ autoclaved (raised) type. [0004] 2) From the materials used: ①The cementitious material is cement-based; ②Adhesive bonding type. ③ The aggregate is made of high-quality natural sand. [0005] 3) From the point of view of use function: most of them have the characteristics of single function, such as the gap type water seepage method, which can seep water, but evaporate slowly. After being irradiated by the sun, the temperature is as high as above 40°C, which has no obvious effect on reducing the urban heat island effect; although some bricks hav...

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Problems solved by technology

[0005] 3) From the point of view of use function: most of them have the characteristics of single function, such as the gap type water seepage method, which can seep water, but evaporate slowly. After being irradiated by the sun, the temperature is as high as above 40°C, which has no obvious effect on reducing the urban heat island effect; although some bricks have holes, their design is unreasonable, the water seepage efficiency is low, and it is not conducive to walking and environmental protection

[0007] (1) The cost is high. Ceramic permeable bricks need to be fired in a curing kiln, which consumes a lot of fuel;

[0008] (2) The non-steamed pavement brick consumes cement, and the strength in the later stage is not good, resulting in a decrease in durability;

[0009] (3) When faced with a large amount of rainfall, its water permeability is slow;

[0010] (4) Using cement-based materials, the pavement bricks rely on aggregate pores to seep water, which has poor freeze-thaw resistance and is susceptible to corrosion;

[0011] (5) The pavement bricks using adhesives have strict requirements on aggregates, high cost, and complicated processes, which are not easy to popularize

[0012] (6) Due to the unreasonable design of the brick structure, its water seepage efficiency is low and it is not conducive to walking and environmental protection

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