<p>The silico-aluminous volatile residue of smoke given off from the mud incinerator of a used water purification plant is added to concrete as an active ingredient. The volatile residue contains 5-20 wt.% P2O5.</p>
申请公布号
DE69504576(D1)
申请公布日期
1998.10.15
申请号
DE1995604576
申请日期
1995.06.13
申请人
OTV OMNIUM DE TRAITEMENTS ET DE VALORISATION S.A., ST MAURICE, FR