What is permeable concrete? What are the permeable concrete materials

Permeable concrete, also known as porous concrete, sand-free concrete, permeable floor. It is a kind of porous lightweight concrete mixed with aggregate, cement, reinforcing agent, and water, which does not contain fine aggregates, and is coated with a thin layer of cement slurry on the surface of coarse aggregate to form a honeycomb structure with uniform distribution of holes, so it has the characteristics of air permeability, water permeability and light weight.

Merit. High water permeability.

Permeable flooring has 15%-25% porosity and is capable of permeable water rates of 31-52 litres per hour, much higher than the discharge rate of the most efficient rainfall in the best drainage configuration.

High load-bearing capacity. According to the appraisal of the national testing agency, the bearing capacity of the permeable floor can fully meet the bearing standard of C20-C25 concrete, which is higher than the bearing capacity of general permeable bricks.

decorative effect. Permeable flooring has a color-optimized ratio scheme, which can match the designer's unique creativity to achieve the decorative style required by different environments and personalities. This is difficult to achieve with general permeable bricks.

Ease of maintenance. The problem of pore clogging is unnecessary, and the unique permeable pavement system makes it easy to solve by simply washing with high-pressure water.

Freeze-thaw resistance. Permeable pavement has stronger freeze-thaw resistance than general concrete pavement, and will not be affected by freeze-thaw surface fracture because its structure itself has large pores.

Durability. The durability and wear-resistance of permeable flooring is better than that of asphalt, close to that of ordinary flooring, and avoids the shortcomings of general permeable bricks, such as short service life and uneconomical life.

High heat dissipation. The low density of the material itself (15-25% voids) reduces the ability to store heat, and the unique pore structure allows a lower subsurface temperature to be transmitted to the surface and thus reduce the temperature of the entire paved floor, which makes the permeable pavement system close to the ground covered by natural vegetation in terms of heat absorption and heat storage functions.

Scope of use. Pedestrian and bicycle paths.

Permeable concrete.

Ground decoration in the community.

Landscaped roads and city squares.

Next to the swimming pool and stadium.

Community fire escapes and lightweight roads.

Golf course tramway.

Outdoor parking.

Permeable concrete is a kind of porous concrete, and the commonly used permeable concrete is divided according to the composition material, including cement permeable concrete, asphalt permeable concrete, etc. According to the appearance effect, permeable concrete can be divided into ordinary permeable concrete, colored permeable concrete and exposed aggregate permeable concrete pavement. At the same time, it can also be divided into ordinary permeable concrete pavement, landscape permeable concrete pavement and bearing permeable concrete according to function.

Permeable concrete is a concrete with permeable porous structure composed of a series of connected pores and solid concrete part skeletons, and is a special concrete construction method that mainly relies on the cementing material slurry wrapped on the aggregate surface in the construction after the slurry is hardened, and the aggregate particles are cemented together to achieve the design strength of concrete.

As far as I know the situation at present, the traditional concrete has been difficult to meet the needs of the city, since the recognition of the strong permeability of the concrete to choose Jiangxi Sibangli, the rest of the things are much simpler, the company headquarters has engineers will help you solve a lot of problems.

Permeable concrete, also known as porous concrete, sand-free concrete, permeable floor. Most permeable concrete is a kind of porous lightweight concrete made of aggregate, cement, reinforcing agent, and water, and it does not contain fine aggregates. If you buy it and use it at home, it is recommended to learn more about the construction method, and it is best to find a good product for the merchant to go directly to the construction, because a good product and the construction team will help the service life and later maintenance of the road surface.

Permeable concrete, also known as porous concrete, sand-free concrete, permeable floor. It is a kind of porous lightweight concrete made of aggregate, cement, reinforcing agent, and water, and it does not contain fine aggregates.

Permeable concrete is coated with a thin layer of cement slurry on the surface of coarse aggregate to form a honeycomb structure with uniform distribution of holes, so it has the characteristics of air permeability, water permeability and light weight.

1.Permeable concrete raw material cement:

The test uses ordinary Portland cement, whose specific surface area is 345m2 kg, loss on ignition, contains, contains, contains chloride ions.

2.Permeable concrete raw material aggregate:

The test uses gravel with a particle size of 5 10mm, the bulk density is, the crushing value is, the apparent density is, the bulk porosity is 44%, the needle flake particle content, the mud content, and the indicators meet the provisions of the "Highway Engineering Aggregate Test Regulations" JTGE42-2005.

3.Permeable concrete raw material reinforcing agent:

The selection of SR-permeable concrete as the reinforcing agent of permeable concrete, SR permeable concrete can not only improve the performance of permeable concrete in all aspects, but also improve the slurry cohesion and concrete stability, so that permeable concrete has higher performance, is a commonly used reinforcing agent in urban road construction.

Permeable concrete: porous lightweight concrete made of aggregate, cement, reinforcing agent, and water.

The practice of permeable concrete is as follows:

1. When the permeable concrete is operated, the gravel of the pavement should first be cushioned, that is to say, the gravel is cushioned at the most base of the pavement, and then all the gravel is flattened to maintain a wetness of the pavement.

2. Then, we prepare the permeable concrete, mix it according to the relevant proportion, after mixing evenly, the cement slurry is evenly coated on the surface, in this process, which mixer should be used for mixing, the mixing time is about 5 minutes, don't take too long, if you want to add some color, you can add colored concrete toner to it for mixing.

3. After the mixing is completed, we pour it with water to keep the road surface moist, which can increase a degree of adhesion between the aggregates, and when constructing, we must ensure that the road surface is smooth, and when there is no problem, we can directly use tools to pave and brush on the road surface, and we must do it evenly when paving and paving.

4. In the process of laying, the vibrator must be used for vibrating, but it cannot be used at a high frequency.

5. Permeable concrete is a relatively new concrete material, which is mainly made of stone and cement and permeable concrete reinforcing agent, so in the process of mixing, there is no way to achieve a certain effect by manual mixing, and mechanical compulsory mixing must be used.