gypsum; quicklime; metakaolin; amorphous silica; Portlandite; Calcite; non-autoclaved aerated concrete.

The structure formation features of gypsum-lime composite binders for non-autoclaved aerated concrete

The crystalline phases of hydration products of the gypsum-lime binder were identified using XRD analysis. The physical and chemical regularities of the structure formation processes in the model system “gypsum – quicklime – metakaolin – amorphous silica – water – borax” were established. The influence of the quicklime type and gypsum binder brand on the morphology and the size of the calcium sulfate dihydrate crystals were investigated.