Concrete pavement brick refers to commercial concrete products such as bricks and slabs used in pavement and ground engineering. It is mainly made of cement, aggregate and water, and is made by mixing, molding and curing. Concrete pavement bricks are divided into ordinary concrete pavement bricks and special-shaped concrete pavement bricks (including commercial concrete interlocking blocks) according to their shapes; According to its specifications, it is divided into commercial concrete pavement bricks and concrete pavement slabs; According to its composition materials, it can be divided into concrete pavement brick with surface layer and integral concrete pavement brick. Concrete pavement brick is a new type of pavement and ground material, which is prefabricated in factory and laid on site, and integrates functions, landscape and environmental protection. Compared with the traditional commercial concrete and asphalt pavement, it has the following three characteristics. Multifunctional. Compared with monolithic rigid commercial concrete pavement, it is paved in small pieces and filled with fine sand, which has the unique function of "rigid surface layer and flexible connection" and good deformation resistance, and is especially suitable for large deformation flexible foundation. In municipal construction, due to poor planning, the upper and lower sewers will be buried for a while; Laying gas pipelines, cable pipelines, etc. In a short time, if the whole pavement is poured with commercial concrete, the amount of excavation is quite large, but the commercial concrete pavement brick is very easy to remove because it is laid in small pieces with fine sand in the middle.

After the pipeline is laid, the original brick can be used, which is equivalent to installing a "zipper" on the road. Because the commercial concrete pavement bricks are prefabricated in the factory and laid on site, it is convenient for construction, maintenance and repair, and can be put into use after laying. However, the overall pouring of commercial concrete pavement must be maintained for a certain number of days after repair, and the strength can not be put into use until it meets the specified requirements. Scenery. Commercial concrete pavement bricks have various shapes, the surface can be natural or colorful, and the pavement can be built with various colorful patterns, which are in harmony with the surrounding buildings and landscapes. Environmental protection. Commercial concrete pavement brick has "breathing function" and can be built into permeable pavement. When it rains, the accumulated water on the road surface can quickly penetrate into the ground through the sand cracks between blocks to maintain the groundwater level. On the other hand, when the weather is hot and the air is dry, groundwater can evaporate into the atmosphere through sand cracks, so that the air can maintain a certain humidity and automatically adjust the air humidity, which is very beneficial to urban soil moisture preservation and vegetation protection.