NON-SHIRINKAGE MORTAR COMPOSITION HAVING ANTIWASHOUT PROPERTY UNDERWATER

摘要

The present invention relates to a mortar composition having a non-shrink and anti-washout underwater property wherein the composition, with respect to 100 parts by weight of ordinary Portland cement, comprises: 40-80 parts by weight of fine aggregates; 2-20 parts by weight of rapid-hardening calcium sulfo-aluminate (CSA); 0.2-3 parts by weight of a superplasticizer; 4-30 parts by weight of calcium oxide; 0.2-3 parts by weight of viscosity increasing agent-aqueous; 6-45 parts by weight of silica fume; 0.2-3 parts by weight of antifoaming agents; and 4-20 parts by weight of calcium nitrite.