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首页> 外文期刊>Arabian Journal for Science and Engineering >Improving the Mechanical Strengths of Hybrid Waste Geopolymer Binders by Short Fiber Reinforcement
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Improving the Mechanical Strengths of Hybrid Waste Geopolymer Binders by Short Fiber Reinforcement

机译：短纤维增强改善杂交废缘聚合物粘合剂的机械优势

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摘要

This study investigates the reinforcement impact of basalt fibers and carbon fibers on the mechanical strengths of a hybridbinary waste ash geopolymer matrix. The geopolymer composites were prepared at various fiber contents of 0.2%, 0.4%, 0.6%and 0.8% (v/v%). The evolution of the mechanical strengths of the specimens was conducted at different aging times of 3, 7,and 28 days. The results showed a significant improvement in the strength characteristics and toughness of the compositescompared to the non-reinforced geopolymeric matrix due to fibers reinforcement. The stress–strain curves showed significantenhancements in the toughness and load-bearing capacity of the matrix as compared to the unreinforced mix, whichexhibited brittle failure characteristics. Furthermore, the conducted microstructure analysis showed that the high modulusfibers worked on reinforcing the matrix by absorbing some of the stresses through the interface between the matrix and fiberand thus improved the matrix toughness.
机译：本研究研究了玄武岩纤维和碳纤维对杂交机械强度的增强效应二元垃圾灰聚合物基质。在各种纤维含量为0.2％，0.4％，0.6％的纤维含量下制备地缘聚合物复合材料和0.8％（v / v％）。标本的机械强度的演变在3,7的不同老化时间下进行，和28天。结果表明复合材料的强度特性和韧性显着改善与纤维增强引起的非增强的地质聚合物基质相比。压力 - 应变曲线显示出显着与未原始的混合相比，基质的韧性和承载能力的增强，这表现出脆性失效特征。此外，进行的微观结构分析表明高模量通过在基质和纤维之间的界面吸收一些应力来加强基质的纤维因此改善了基质韧性。

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