Utilization of Waste Wheat Straw Fibers for Improving the Strength Characteristics of Clay

ABSTRACT

This paper presents the evaluation of engineering properties of Dhanauri clay reinforced with wheat straw fibers. A series of experiments were conducted to find the index and strength properties that is unconfined compressive strength and California Bearing Ratio (CBR) values of compacted soil specimens in unreinforced and reinforced conditions. These tests were carried out with different percentages of fiber inclusion (0% to 2%). It is found that the unconfined compressive strength significantly improved (about three times) with the inclusion of wheat straw fibers. CBR values have also increased by 44% with inclusion of these fibers. The increase in strength characteristics of soil indicates that the waste wheat straw fibers can be used as reinforcement in subgrade of rural roads and mud housing.

摘要

本文对麦秸纤维增强达瑙里粘土的工程性能进行了评价. 通过一系列试验，研究了未加筋和加筋条件下压实土样的无侧限抗压强度和加州承载比（CBR）值. 这些试验是在不同的纤维包合率（0-2%）下进行的. 结果表明，麦秸纤维的加入显著提高了无侧限抗压强度（约3倍）. 含这些纤维的CBR值也增加了44%. 土壤强度特性的提高表明，废弃麦秸纤维可以作为农村公路路基和泥房的加固材料.

KEYWORDS:

• Clay
• reinforcement
• wheat straw fiber
• tensile strength
• UCS
• California Bearing Ratio (CBR)

关键词:

• 粘土
• 加固
• 麦秸纤维
• 抗拉强度
• 加州承载比（CBR）