Supply permeable concrete

. ' , (, ,) Permeable concrete is also called porous concrete, sandless concrete, and permeable floor. It is a porous lightweight concrete made of aggregate, cement and water. , it does not contain fine aggregates. The coarse aggregates are coated with a thin layer of cement slurry and bonded to each other to form a honeycomb structure with evenly distributed holes. Therefore, it has the characteristics of air permeability, water permeability and light weight. It can also be called sand-free concrete. .
. ' , (, ,) It was developed and used by European, American, Japanese and other countries in response to the defects of the original urban road pavement, which allows rainwater to flow into the ground, effectively replenishes groundwater, and alleviates the sharp decline in urban groundwater levels. and some urban environmental issues. And it can effectively eliminate the harm to environmental pollution caused by oil compounds on the ground
. ' , (, ,) At the same time, it is an excellent paving material that protects groundwater, maintains ecological balance, and alleviates the urban heat island effect. It is of special significance for the healthy development of the human living environment, urban rainwater management, and water pollution prevention and control.
. ' , (, ,) The concrete permeable concrete system has a series of color formulas, and with the creativity of the design, it can be laid and constructed according to the decorative styles of different environments and individual requirements. This is a special paving material that traditional paving and general permeable bricks cannot achieve.
. ' , (, ,) Permeable concrete has been researched and applied in the United States since the 1970s and 1980s, and is being widely promoted in many countries. For example, Germany is expected to transform its roads into permeable ones in the short term. Concrete has changed the ground paving that destroyed urban ecology in the past, and made permeable concrete pavement have a wide range of social benefits.
. ' , (, ,) Advantages of permeable floor
. ' , (, ,) High water permeability
. ' , (, ,) Permeable floor has a lot of pores, which can make The water permeability rate reaches 3-liter/meter/hour, which is much higher than the discharge rate of the most effective rainfall under the best drainage configuration.
. ' , (, ,) High bearing capacity
. ' , (, ,) The bearing capacity of the permeable floor can fully meet the bearing standards of concrete and is higher than that of ordinary permeable bricks. carrying capacity.
. ' , (, ,) Decorative effect
. ' , (, ,) The permeable floor has an optimized color ratio scheme, which can cooperate with the designer's unique creativity to achieve the decoration required by different environments and personalities. style. This is difficult to achieve with ordinary permeable bricks.
. ' , (, ,) Easy maintenance
. ' , (, ,) The problem of pore clogging that people are worried about is not necessary. The unique permeable paving system only needs to pass high pressure It can be easily solved by washing it with water.
. ' , (, ,) Freeze-thaw resistance
. ' , (, ,) Permeable pavement has stronger freeze-thaw resistance than ordinary concrete pavement and will not be affected by freeze-thaw. fracture because its structure itself has larger pores.
. ' , (, ,) Durability
. ' , (, ,) The durability and wear resistance of permeable flooring is better than that of asphalt, and is close to ordinary floors, avoiding the existence of ordinary permeable bricks It has short service life, uneconomical and other shortcomings.
. ' , (, ,) High heat dissipation
. ' , (, ,) The density of the material itself is low (-voids) which reduces the heat storage capacity. The unique pore structure makes the lower The underground temperature is transmitted to the ground, thereby reducing the temperature of the entire paved floor. These characteristics make the permeable pavement system close to the ground covered by natural vegetation in terms of heat absorption and heat storage functions.
. ' , (, ,)permeable floor permeable floor -