????? ??????? ????????? ???? ? ?????? ????? ???? ? ???? ?? ??? ????It provides thermal insulation, hearth resistance, and audio absorption. The kind of fly ash used is Course C which consists of 20% lime (CaO) and loss of ignition not be much more than 6%.Comparatively to other setting up products, AAC blocks are noncombustible and provide fire res

By utilizing new formulations, containing only quartz sand, calcined gypsum, lime (mineral), cement, h2o and aluminum powder, Ytong developed a brand new sort of aerated concrete that now not includes alum slate and therefore has eliminated the trouble of radon publicity from this Uncooked substance. The production of this white autoclaved aerated