The porous concrete can be made up by using the natural zeolite as an air bubble carrier and carrying the air into the plaster. 利用天然沸石岩作为气体载体把气体带进料浆中配制成多孔混凝土。
This paper deals with a new technique for making regular porous metals using plaster investment casting process. 本文研究了一种新型的利用石膏型熔模铸造制备规则孔型泡沫铝的工艺。