Cellular concrete having normal compressive strength

摘要

A method for producing hardened cellular concrete having normal compressive strength by producing tiny, unconnected, pre-pour, air-filled bubbles during mixing of cement, cementitious substitutes, sand, coarse aggregates, water, fiber, a surfactant, aluminum flakes or powder, calcium formate, and magnesium silico fluoride and then producing additional tiny, unconnected, post-pour, hydrogen-filled bubbles to replace those air-filled bubbles which are destroyed while pouring the fresh concrete during the casting operation. Only as much matrix is added to the coarse aggregate as is needed to engulf the aggregates while enabling the aggregate particles to be in contact.