What is cast-in-place foam concrete? Cast-in-place foam concrete refers to the lightweight porous concrete made of foaming agent solution by physical method and then added to the paste made of cement, aggregate, admixture, admixture, and water.
Foam concrete can be divided into two categories in application: Foam concrete products. Examples are foam concrete blocks, foam concrete, lightweight partition board, foam concrete culture stone, foam concrete garden application, etc. Foam concrete is poured on the spot. For example, backfill (landfill of landfill, road and bridge application, tunnel entrance filling, subway filling, etc.), foam concrete cast-in-place wall, etc. Because foam concrete has the characteristics of environmental protection, simple construction operation, stable quality, and can realize on-site pouring. The foam concrete poured on the spot is called cast-in-place foam or foamed cement.
Characteristics of foam concrete: 1) Thermal insulation: the thermal conductivity is 0.06-0.28W/ (M.K), and the thermal resistance is about 10-20 times that of ordinary concrete. 2) Lightweight: the dry volume density is 300-1600KG/M3, equivalent to that of ordinary cement concrete, which can reduce the overall load of the building. 3) Integrity: the on-site pouring construction is closely combined with the main project, and there is no need to leave a boundary gap and vent pipe. 4) low elastic shock absorption: cast-in-place foam concrete's porosity gives it a soft elastic modulus to absorb and disperse the impact load. 5) Sound insulation: cast-in-place foam concrete contains many independent bubbles and is evenly distributed; sound absorption capacity is 0.09-0.19%, five times that of ordinary concrete, with adequate sound insulation function. 6) compressive strength: the compressive strength is 0.6-25.0MPA. 7) Water resistance: cast-in-place foam concrete has low water absorption, relatively independent closed bubbles, and sound integrity, so it has a particular waterproof performance. 8) durability: the same as the life of the main project. 9) Construction is simple: automatic operation can be realized only using a cement foaming machine, long-distance transportation with a vertical height of 200m can be learned, and the workload is 150-300M3/ working day. 10) Environmental protection: the raw materials for foamed concrete are cement and foaming agents, and the foaming agent is neutral and does not contain harmful substances such as benzene and formaldehyde, which avoids environmental pollution and hidden dangers of fire protection. 11) Economy: low comprehensive cost.
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