Physical and Waterproof Properties of Mortar Using Cement Sludge Treated with Hydrofluosilicic Acid

규불화수소산 처리 시멘트 슬러지를 사용한 모르타르의 물성 및 방수 특성

The physical properties of cement sludge treated with hydrofluosilicic acid were investigated. The compressive strength of cement mortar substituted cement sludge was decreased than that of OPC(ordinary portland cement) mortar. Cement sludge, for improving its physical properties, was treated with hydrofluosilicic acid. And compressive strength of cement mortar substituted TCS was greatly improved than that of OPC mortar. Particularly, cement mortar substituted TCS had the higher value in water-proofness than of OPC.