Permeable concrete is a semi-fluid dynamic concrete made of single-grain aggregate, cement, reinforcement agent and water mixing by a specific process. It contains no or little sand. The aggregate surface is coated with a layer of cement paste strengthened and modified by the reinforcement agent. It is a high permeability, high strength and environment-friendly surface paving material paved by special machinery on site.
Permeable concrete is a semi-fluid dynamic concrete made of single-grain aggregate, cement, reinforcement agent and water mixing by a specific process. It contains no or little sand. The aggregate surface is coated with a layer of cement paste strengthened and modified by the reinforcement agent. It is a high permeability, high strength and environment-friendly surface paving material paved by special machinery on site.
Characteristics of colour Strong Pervious concrete:
Efficient permeability, compression resistance, bending resistance and frost resistance can fully achieve the physical properties of ordinary concrete, but also can effectively permeate. Its permeability is much higher than that of permeable bricks. Usually a bucket of water needs to reach the level of complete permeability in 5 seconds.
When the base soil is sandy soil and the drainage is good, the upper and lower permeable pavement (full permeable pavement) is adopted, while the permeable Drainage Pavement (semi-permeable pavement) is adopted when the base soil, expansive soil, the possibility of non-uniform settlement of foundation or the old concrete pavement is reconstructed.
In order to save cost or when the thickness of secondary paving is too large to be used for one-time paving, layered design and construction are usually adopted. The lower layer is generally made of aggregates with larger particle size and without pigments, which is called "benchmark macroporous pervious concrete". For aesthetic and performance considerations, the surface layer is usually made of smaller aggregates, and pigments must be added and fine construction is called "color Strong Pervious concrete".
Inorganic iron oxide series pigments are usually used in colorful and strong permeable concrete, which can endure long-term weathering. Red, yellow, green, grey and other color systems can usually be realized, while color-sealed concrete may achieve almost any color.
Qualified pervious concrete engineering with professional construction is the product of combination of material science and professional construction. Compared with ordinary "macroporous concrete", colour Strong Pervious Concrete
Higher strength, stricter construction technology, stricter material mix, more professional construction equipment and more mature construction team are needed.
The finished surface of the surface sealed coloured strong pervious concrete must be sprayed with transparent silicone fluorine sealant. The transparent silicon and fluorine sealant nano molecules will penetrate into the concrete. The silicon rich ions will be chemically reacted with Ca+ in concrete to form a rigid silica gel, which will greatly enhance the surface hardness and inhibit the alkali, wetting and color correction.
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