Microstructure and Mechanical Properties of Cement/Fly Ash/Natural Rubber Composites

Abstract:

The physical and mechanical properties of Portland cement (PC) - natural rubber latex (NRL) - fly ash (FA) composites have been investigated. The latex per cement ratios that use in this experiment are 0, 5, 7.5 and 10% by weight of cement. Portland cement (PC) was partially replaced with fly ash 0-40% by weight of binder. Water to cement ratio were used in range of 0.305-0.385 (by weight not include water in latex). Nonionic surfactant was added in cement before mixed with natural rubber latex. In addition, to provide latex from natural rubber latex, the ammonia solution is added into natural rubber. The specimens were packing into an iron mold which sample size of 4x4x16 cm3. Moreover, the PC-NRL-FA composites were cured in water for 7 and 28 days at room temperature before measurement. Then, mechanical properties (flexural strength) and microstructure were studied.

• Periodical: Applied Mechanics and Materials (Volume 866)
• Pages: 195-198
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.866.195
• Online since: June 2017
• Authors: Rakchanok Promudom, Suparut Narksitipan, Nittaya Jaitanong*
• Keywords: Cement, Fly Ash, Natural Rubber Latex

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