Effects of Surfactants on the Properties of Mortar Containing StyreneMethacrylate Superplasticizer

Abstract EN

The physical and mechanical properties of mortar containing synthetic cosurfactants as air entraining agent are investigated.

The cosurfactants consist of a combination of 2% dodecyl benzene sodium sulfonate (DBSS) and either 1.5% polyvinyl alcohol (PVA) or 1.5% polyoxyethylene glycol monomethyl ether (POE).

Also these cosurfactants were used to prepare copolymers latex: styrene/butyl methacrylate (St/BuMA), styrene/methyl methacrylate (St/MMA), and styrene/glycidyl methacrylate (St/GMA), in order to study their effects on the properties of mortar.

The properties of mortar examined included flow table, W/C ratio, setting time, water absorption, compressive strength, and combined water.

The results indicate that the latex causes improvement in mortar properties compared with cosurfactants.

Also polymer latex containing DBSS/POE is more effective than that containing DBSS/PVA.