Properties of Mortar Mixing with Medium Ammonia Concentrated Latex

Abstract

The aim of this research is to use medium ammonia concentrated latex mixed in mortar for developing the strength and thermal insulation properties. The concentrated latex to cement ratios (P/C) are fixed at 0.000, 0.025, 0.050, 0.075, 0.100, 0.125 and 0.150 by weight. Cement to sand ratio is maintained at 1: 2.75. Water to cement ratio is 0.50 (not

include water content in concentrated latex). The mortar samples are cast for testing the properties followed the ASTM standard. From the results, it is found that the increase of concentrated latex affects in decreasing of density, elongation, compressive strength, bending strength and coefficient of thermal conductivity. For rate of water absorption, it decreases considerably when the concentrated latex is added at small amount but it becomes higher values when adding the concentrated latex reaches at some amount. In the future, this indicates that the use of concentrated latex at some suitable

amount can develop the concrete having the properties of waterproof and thermal insulation.