The addition of the treated chromic refuse with proper amount of sodiumsulfate into cement paste has shown an important role in quicker water absorption and earlier hardening.
处理后铬渣加入适量硫酸钠，渗入水泥砂浆中可以起到早强减水作用。
2
Chromicsulfate, sodium formate and formate acid react with hydrolysis collagen were investigated by fluorescent method to get the more evidence of understanding chrome tanned mechanics.