Influences of Mixing Procedure on Properties of Fresh Latex Modified Cement Paste(I)
In this study, influences of mixing procedure on the latex adsorption behavior, slurry fluidity and setting time of latex modified cement paste (LMCP) mixed with polycarboxylate (PC) as superplasticizer were analyzed. There were three kinds of mixing procedure: LMCP added latex later than PC (LMCP-L), LMCP added latex before PC (LMCP-B), LMCP added latex and PC simultaneously (LMCP-S). The results show that, the adsorption isotherm of SAE latex by cement grains fits the Langmiur type, and the presence of PC can affect the adsorption behavior. Regardless of the mlatex/mcement (4% or10%), LMCP-B had the highest amount of adsorbed latex and slurry fluidity while LMCP-L had the lowest. And, the LMCP-B also had the longest initial and final setting times, while the setting times of LMCP-L and LMCP-S were comparable.
Wong Sook Fun, Tan Kang Hai and Ong Khim Chye Gary
D. D. Han et al., "Influences of Mixing Procedure on Properties of Fresh Latex Modified Cement Paste(I)", Advanced Materials Research, Vol. 1129, pp. 530-537, 2015