What is the specific difference between steam-free foam and autoclaved concrete blocks? What are their strengths and weaknesses? Free foam brick production in the easy problems
Autoclaved concrete block: from (silica) silica fume, lime and a small amount of cement slurry injection molding, calcium oxide to provide the heat and the appropriate alkalinity under the action of adding aluminum powder gas agent reaction, release H (OH) Al2O3 and Fe2O3 in the raw materials, and the new phase, calcium silicate, aluminosilicate and aluminosilicate were formed by the thickening of the slurry Calcium, calcium aluminate Autoclaved concrete block bulk density is mostly 500-800g / cm compressive strength ≥ 35MPa, can be used as frame structure of the wall material, is the national promotion of new wall materials Autoclaved concrete block investment is relatively large
Free foam foam brick strength of the main role of cement, many construction sites are cement paste; small investment is the biggest advantage of steam-free foam brick
Free foam brick: cement slurry by adding (by chemical reagents pressurized) chemical foam foam concrete, after injection of natural hardening from the rich micro-porous lightweight building materials, bulk density and strength corresponding to the lower, the main Used for roofing, as well as indoors filled with insulation
