An improvement to the method for the dry or wet production of a coating by spraying a sprayable mixture containing cement and particularly concrete, is disclosed. According to the improvement, barium sulphate and specifically barite is incorporated into the cement-containing mixture.
申请公布号
WO9801402(A1)
申请公布日期
1998.01.15
申请号
WO1997CA00482
申请日期
1997.07.07
申请人
3055515 CANADA INC.;TOMA, IOAN;TOMA, ILEANA;ROLLAND, PIERRE
