Development of Reinforcement Grout Materials Using Reinforcing Fiber and Blast Furnace Slag Powder

IF 0.4 Q4 ENGINEERING, GEOLOGICAL Journal of the Korean Geosynthetic Society Pub Date : 2019-09-01 DOI:10.12814/JKGSS.2019.18.3.101
H. Seo, Daehyeon Kim
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引用次数: 2

Abstract

The grouting method is utilized to reinforce and waterproof poor grounds, enhance the bearing capacity of geo-structures damaged from differential settlement. The purpose of this research is to improve the compressive strength and degree of grout using reinforcing fibers and blast furnace slag powder. In this regard, this study has conducted uniaxial compression tests for the specimens with high ratios (higher than 50%) of blast furnace slag powder. The carbon fiber content was increased by 0, 0.5, and 1.0% to coMpare its compressive strength with that of aramid fiber. The uniaxial compressive strength increased with the increase of fiber content and the bridging activity by fiber in cement tended to increase uniaxial compressive strength. Based on the results, it was confirmed that the aramid fiber has a gel time of 14 seconds and the uniaxial compressive strength is more than 3 Mpa coMpared to carbon fiber.
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以增强纤维和高炉矿渣粉为原料的加固灌浆材料的研制
采用注浆法对不良地基进行加固和防水,提高因差沉降破坏的土工结构的承载力。本研究的目的是利用增强纤维和高炉矿渣粉提高浆料的抗压强度和抗压程度。为此,本研究对高炉渣粉掺比(大于50%)的试样进行了单轴压缩试验。碳纤维含量分别增加0、0.5和1.0%,与芳纶纤维的抗压强度进行比较。单轴抗压强度随纤维含量的增加而增加,水泥中纤维的桥接活性有增加单轴抗压强度的趋势。结果表明,与碳纤维相比,芳纶纤维的凝胶时间为14秒,单轴抗压强度大于3 Mpa。
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