Improvement of Mechanical Properties by Waste Sawdust Ash Addition into Soil

IF 1 Q4 ENGINEERING, CIVIL

Jordan Journal of Civil Engineering Pub Date : 2016-01-01 DOI:10.14525/JJCE.10.1.3402

S. Khan, Haziq Khan

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引用次数: 12

Abstract

The objective of this paper is to utilise waste sawdust ash in a beneficial way for geotechnical purpose. The amount of sawdust generated every year constitutes up to 10-13% of the total volume of wood log. Such an enormous amount serves as waste material for landfill and is not utilized. Effective utilization of waste Sawdust Ash to enhance the engineering properties of soil could result in solution of landfill problem which was the objective of the paper under study. Permeability and Direct Shear Test was conducted to analyse the impact of waste sawdust ash on properties of soil. After noticing the behaviour, the optimum quantity of SDA addition (12%) was selected and further compaction and shrinkage limit test on soil with 12% SDA was conducted. Dry Density of the soil was improved by 7.8%, permeability reduced by 71.8% and shrinkage limit was increased. Further, there was 22.14% increase of friction angle with addition of 12% sawdust ash and shear strength parameters were improved significantly. Overall, the SDA had positive effect on geotechnical properties of soil and it can be used as admixture in soil. This will not only solve the waste disposal problem but also improve the strength characteristics of soil.

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废木屑灰掺入土壤改善其力学性能

本文的目的是利用废木屑灰在一个有益的方式为岩土工程目的。每年产生的锯末占原木总量的10-13%。如此巨大的数量作为垃圾填埋而不被利用。有效利用废木屑灰，提高土壤的工程性能，可以解决垃圾填埋问题，这是本文研究的目的。通过渗透试验和直剪试验，分析了废木屑灰分对土性的影响。在观察了该特性后，选择了SDA的最佳添加量(12%)，并对SDA添加量为12%的土进行了进一步的压实收缩极限试验。土壤干密度提高7.8%，渗透性降低71.8%，收缩极限提高。当木屑灰分添加量为12%时，摩擦角增加22.14%，抗剪强度参数显著提高。综上所述，SDA对土的岩土性能有积极的影响，可以作为土的外加剂使用。这样既解决了垃圾处理问题，又改善了土的强度特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Jordan Journal of Civil Engineering ENGINEERING, CIVIL-

CiteScore

2.10

自引率

27.30%

发文量

期刊介绍： I am very pleased and honored to be appointed as an Editor-in-Chief of the Jordan Journal of Civil Engineering which enjoys an excellent reputation, both locally and internationally. Since development is the essence of life, I hope to continue developing this distinguished Journal, building on the effort of all the Editors-in-Chief and Editorial Board Members as well as Advisory Boards of the Journal since its establishment about a decade ago. I will do my best to focus on publishing high quality diverse articles and move forward in the indexing issue of the Journal.