Fiber Reinforcement of DCPD-Modified Sulfur Mortar
Fiber Reinforcement of DCPD-Modified Sulfur Mortar
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DOI：
10.1061/(asce)mt.1943-5533.0000778
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发表时间：
2014
影响因子：
3.2
通讯作者：
Tahmine Enayaty-Ahangar;S. Motahari
中科院分区：
文献类型：
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作者：
Tahmine Enayaty-Ahangar;S. Motahari
摘要本研究以双环戊二烯（DCPD）改性硫磺制备玻璃纤维增强硫磺砂浆，并对其力学性能进行评价。采用差示扫描量热仪和砂浆力学性能测试方法对硫磺改性效果进行了检测。纤维增强砂浆的制备使用DCPD改性的硫和玻璃纤维的长度为6和12毫米，具有不同的体积百分比。劈拉强度和断裂模量（莫尔）分别提高了147.44%和83%，由于纤维增强，但抗压强度没有改善太多。根据力学测试结果，推导出了在玻璃纤维体积分数为0 ~ 5.21%范围内预测劈裂抗拉强度和莫尔强度的实验关系式。
AbstractIn this study, mechanical properties of glass fiber–reinforced sulfur mortar prepared with dicyclopentadiene (DCPD)-modified sulfur are evaluated. The efficiency of sulfur modification was detected using a differential scanning calorimeter and mortar’s mechanical property measurements. Fiber-reinforced mortars were prepared using DCPD-modified sulfur and glass fibers of lengths 6 and 12 mm with different volume percentages. Splitting tensile strength and modulus of rupture (MOR) increased up to 147.44% and 83%, respectively, due to fiber reinforcement; however, compressive strength did not improve much. Based on mechanical measurements, experimental relations for prediction of splitting tensile strength and MOR in the range of 0–5.21% of glass-fiber volume percentage were derived.