Shear Characteristics of Geomaterials Mixed with Fibrous Wood Chip and Converter Steelmaking Slag
Shear Characteristics of Geomaterials Mixed with Fibrous Wood Chip and Converter Steelmaking Slag
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纤维木屑与转炉炼钢渣混合土工材料的剪切特性
DOI：
10.1007/978-981-16-0077-7_17
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
A. Oshino
中科院分区：
文献类型：
--
作者：
Tomotaka Yoshikawa;Y. Kikuchi;S. Noda;A. Oshino
筛下残留物是自然灾害产生的含有大量木屑的沉积物。这种残留物的机械性能还没有得到很好的理解，因此，它通常被填埋。开发有效利用筛下残留物的方法被认为有助于灾害期间的快速恢复和重建。因此，本研究旨在设计一种有效的方法，将筛下残渣转化为地质材料。采用椰子纤维（与筛下残渣非常相似）与钢渣和高炉矿渣细粉混合物进行固结-排水三轴压缩（CD）试验，以了解椰子纤维的混合比和养护时间对椰子纤维混合物的影响。结果表明，与椰子纤维在5%（椰子5）的体积比的矿渣混合的最大剪切强度高于“矿渣只有”的标本，无论养护期。与椰子纤维按体积计10%（椰子10）或33%（椰子33）的矿渣混合的最大剪切强度高于“仅矿渣”未固化的剪切强度。然而，coco 10或coco 33的最大剪切强度并不随固化而增加。
Under-sieve residue is a sediment containing large amounts of wood chips generated by natural disaster. The mechanical properties of this residue have not been well understood, and thus, it has usually been landfilled. The development of a method for effective utilization of under-sieve residue is believed to facilitate quick recovery and reconstruction during disasters. Accordingly, this study aimed to devise an effective approach to convert under-sieve residue into a geological material. Consolidated-drained triaxial compression (CD) tests were performed using mixtures of coconut fiber, which closely resembles under-sieve residue, with steelmaking slag and blast furnace slag fine powder to understand the effect of the mixing ratio of coconut fiber and curing periods. The results indicated that the maximum shear strength of the slag mixed with coconut fiber at 5% (coco5) by volume was higher than that of a “slag only” specimen regardless of curing periods. The maximum shear strength of the slag mixed with coconut fiber at 10% (coco10) or 33% (coco33) by volume was higher than that of “slag only” without curing. However, the maximum shear strength of coco10 or coco33 did not increase with curing.