灰浆
材料科学
复合材料
抗弯强度
吸水率
抗压强度
水泥
乳状液
多孔性
韧性
聚合物
化学工程
工程类
作者
Sumit Chakraborty,Sarada Prasad Kundu,Aparna Roy,Basudam Adhikari,S.B. Majumder
标识
DOI:10.1016/j.conbuildmat.2013.08.025
摘要
Polymer modified alkali treated jute fibre as a reinforcing agent, substantially improves the physical and mechanical properties of cement mortar with a mix design cement:sand:fibre:water::1:3:0.01:0.6. The workability of the mortar is found to increase systematically from 155 ± 5 mm (control mortar) to 167 ± 8 mm (0.2050% polymer modified mortar). The density of the mortar is increased from 2092 kg/m3 to 2136 kg/m3 with a concomitant reduction of both water absorption and apparent porosity. Optimal polymer content in emulsion (0.0513%) is found to increase the compressive strength, modulus of rupture and flexural toughness 25%, 28%, 387% respectively as compared to control mortar. Based on the X-ray diffraction and infra-red spectroscopy analyses of the mortar samples a plausible mechanism of the effect of modified jute fibre controlling the physical and mechanical properties of cement mortar has been proposed.
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