Kunshan Foamed Concrete Co., Ltd., with the world's leading level, is specialized in foam concrete construction from diversified perspectives, MLC pump Send foam concrete
1. Foam concrete thermal insulation material
Automatic machinery is directly pumped on the building roof for construction, which is fast in construction speed, good in thermal insulation effect and relatively low in cost. Various shapes of roofs can be produced according to different drawing requirements, with good overall performance. than other The construction efficiency of the product is more than 5 times higher. The construction method can refer to the Technical Code for Roof Engineering GB50345-2004. For the project, refer to the Code for Acceptance of Construction Quality of Energy Efficiency Engineering in Residential Buildings (DBJ50-069-2007) and the Code for Acceptance of Construction Quality of Energy Efficiency Engineering in Public Buildings (DBJ50-070-2007).
2. Product characteristics
(1) Lightness: the bulk density is 250-1500kg/m ³, equivalent to about 1/10-1/2 of ordinary concrete, which can reduce the overall load of the building.
(2) Compressibility: the compressive strength is greater than 0.5Mpa, and foam concrete products with different strengths can be produced according to production needs.
(3) Thermal insulation: low thermal conductivity, and thermal conductivity coefficient of B03 unit weight is lower than 0.08w/(m.k).
(4) Sound insulation: foam concrete contains a large number of individual bubbles, which are evenly distributed. The sound absorption capacity is 0.09-0.19%, which is 5 times that of ordinary concrete. It has a unique sound insulation function.
(5) It has good thermal insulation: the thermal resistance is about 20-30 times that of ordinary concrete, which can play a very good thermal insulation effect.
(6) Low elasticity and seismic resistance: the porosity of foam concrete makes it have a low elastic modulus, which makes it have a good absorption and dispersion effect on impact load. It shows a soft cushion for external force and improves the seismic resistance.
(7) Low absorption rate: the foam has a strong and independent foam connection, and the absorption rate is less than 25%, so that it has certain moisture-proof and impermeable properties.
(8) Environmental protection: raw materials required for foam concrete are cement and foaming agent It is an environmental protection and energy saving product.
(9) Good integrity: it can be poured on site and closely combined with the main works.
(10) Good pumpability: foam concrete has a unique liquid and strong foam. In addition, it has strong fluidity, can be pumped remotely, and has strong operation injection capacity and high degree of mechanization. It can be constructed in a large area, used to fill tunnels and as a cushion inside various buildings.
3. Construction method of foam concrete thermal insulation layer:
(1) The thickness and gradient of the thermal insulation layer shall be marked around the parapet of the construction roof.
(2) The mixture of foaming agent, cement, fly ash, water, etc. shall be mixed into uniform liquid foam concrete with large automatic machinery, and the corresponding thickness of the roof shall be made according to the drawing requirements.
(3) After the roof insulation layer is completed, no one can get on the roof or carry out other roof operations within 2 days Shanghai foam concrete cast-in-place construction, foam concrete, also known as foam cement, lightweight concrete, etc., is a new type of building energy-saving material with waste recycling, environmental protection, energy conservation, low cost and non combustible. Lightweight concrete (foam concrete) is formed by introducing air or nitrogen, carbon dioxide, oxygen and other gases into the concrete paste through chemical or physical methods according to the application needs, and after reasonable curing and molding, it contains a large number of small closed pores and has the same strength Concrete products 。 The production of lightweight concrete (foam concrete) is usually a kind of porous material made by mechanically preparing the foam from the aqueous solution of foam agent, adding the foam to the slurry consisting of siliceous materials, calcareous materials, water and various admixtures, and then mixing, casting and curing.
