Abstract
Recently, the practical researches and developments of styrene-butadiene latex (SB latex) as a cement modifier have been made and the cement mortars modified by it are used in the field of building or civil engineering. The physical and chemical properties of SB latex-modified mortars have already been reported, but the effects of various polymerization conditions for latex synthesis on properties of SB latex-modifi ed mortars have hardly been found to be studied. The authors discussed the effects of polymerization conditions, in particular, styrene/butadiene monomer ratios on physical properties of SB latex-modified mortars and concluded that the physical properties such as strength, drying shrinkage, adhesion, abrasion and shock resistance, etc. of SB latex-mortars are affected more intensively by the variation of bound styrene contents than by that of the rubber-cement ratios.
