3 - Process Technology of Latex-Modified Systems

Abstract

This chapter emphasizes process technology of latex-modified systems. The process technology of latex-modified mortar and concrete is almost the same as that of conventional cement mortar and concrete. Most polymers, such as latexes, are in a dispersed form and are added to the cement mortar or concrete during mixing. The polymers are used in very large amounts in comparison with air-entraining agents or water-reducing agents that are normally employed in ordinary cement mortar and concrete. The latex-modified mortar and concrete with proper mix proportions are mixed and placed like the ordinary cement mortar and concrete and then cured under optimum conditions. Polymer latexes are copolymer systems of two or more different monomers, and their total solid content including polymers, emulsifiers, and stabilizers is 40 to 50 % of the weight.