Introduction: Permeable concrete is also called porous concrete, sandless concrete, and permeable floor.

It is composed of cement, water, permeable concrete enhancer (binder) mixed with high-quality aggregates of the same particle size or discontinuous grading. It is a porous lightweight concrete with a certain porosity.
It does not contain fine aggregates. It is formed by a thin layer of cement slurry covering the surface of coarse aggregates and bonding them to form a honeycomb structure with evenly distributed holes. Therefore, it has the characteristics of air permeability, water permeability and light weight.
When it is made into concrete pavement, slope protection and its products, it can achieve drainage, anti-skid, sound absorption, noise reduction and water seepage effects. It can improve the ecological cycle of the surface. It is conducive to traffic safety. Protect the living environment. Solve the negative impact caused by large-scale modern urban construction.
Engineering practice has proved that permeable concrete is a new type of multifunctional paving material.

Permeable concrete binder:

Because the permeable concrete system has a series of color formulas, it matches the design creativity. It is laid for different environments and individual requirements of the decorative style. This is the traditional paving and general permeable bricks. The paving process of it is similar to the paving of concrete. But it is different from the concrete paving.

Material composition:

The special binder for permeable concrete is composed of a variety of additives. High-strength silicate cement is used as the base material. Powdered material that increases the strength and adhesion of permeable concrete (15-30 kg per cubic meter of permeable concrete). Inorganic weather-resistant pigments can also be added according to user requirements. After mixing it with gravel and water in a certain proportion, it forms a permeable concrete surface layer of different colors.

Function:

Permeable concrete is developed and used by Europe, America, Japan and other countries to address the defects of the original urban road pavement. It allows rainwater to flow into the ground and effectively replenish groundwater. It alleviates some urban environmental problems such as the sharp drop in the city’s groundwater level. It can also effectively eliminate the harm of oil compounds on the ground to the environment.
At the same time, it is an excellent paving material that protects groundwater, maintains ecological balance, and can alleviate the urban heat island effect. It is conducive to the healthy development of the human living environment and urban rainwater management and water pollution prevention and control. It has special significance.
The permeable concrete system has a series of color formulas. With the creativity of the design, it is laid and constructed according to the decorative style of different environments and personality requirements. This is a special paving material that traditional paving and general permeable bricks cannot achieve.
Permeable concrete has been studied and applied in the United States since the 1970s and 1980s. Many countries are promoting it in large quantities. For example, Germany expects to transform 90% of its roads into permeable concrete in the short term. Change the ground paving that destroyed the urban ecology in the past. Make the permeable concrete pavement depend on a wide range of social benefits.