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 MSA  Vol.8 No.2 , February 2017
Study on the Expansion of a Cement-Based System Containing Sap Polymer and Supplementary Cementing Materials
Abstract: In this paper, the addition of admixed superabsorbent polymer (SAP) improved the microstructure and durability-related properties in a cement-based system with supplementary materials. This is an important issue in real construction projects when good durability properties are required. This study investigates the effect of SAP on the systems using cement replacement by fly ash and silica fume considering the strength properties and durability properties of paste under sulfate attack of cement-based system. The replacement considered in the study was of 10% silica fume and 20% fly ash in each case, the dosage of SAP was 0.25% of the total amount of cementitious material. The results showed that the addition of SAP in the cement-based system improved the compressive strength and reduced expansion to sulfate attack. Scanning electron micrographs showed that utilization of fly ash with silica fume and silica fume with SAP resulted in a much denser microstructure, thereby, leading to an increase in compressive strength and lower expansion under sulfate attack.
Cite this paper: Ávalos-Rendón, T. and Mendoza, C. (2017) Study on the Expansion of a Cement-Based System Containing Sap Polymer and Supplementary Cementing Materials. Materials Sciences and Applications, 8, 123-134. doi: 10.4236/msa.2017.82008.
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