Process for producing an aerated concrete and aerated concrete produced according to the method

摘要

Process for the production of aerated concrete which is air-hardened under atmospheric pressure at normal ambient temperature and which has a compressive strength of up to 30 N / mm 2, depending on the fresh mortar consistency and the distribution of different sized air voids in the matrix of aerated concrete, comprising a binder-containing mixture comprising Binder, - 20-60% by mass of water, based on the mass of the binder in the mixture, - 0.05-0.25% by mass of chemical blowing agent in the form of an air entraining agent based on the mass of the binder, wherein the air entraining agent is a powder a mixture of different particle sizes is: 0.5-25% by mass of concrete additives in the form of microsilica and / or ground blastfurnace slag and / or fly ash, based on the mass of the binder, 0.5-5% by mass of concrete admixture with predominantly liquefying action based on the mass of the binder. in that a) binders, concrete admixtures and concrete admixtures are mixed together, b) chemical blowing agent in the form of a powder of different particle sizes in fully dispersed state of the propellant particles in ...