Influence of preparation techniques on the index properties of clay

IF 0.3 Q4 ENGINEERING, GEOLOGICAL Geotechnical Engineering Pub Date : 2002-10-01 DOI:10.1680/GENG.2002.155.4.253
T. Navaneethan, V. Sivakumar
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引用次数: 6

Abstract

Liquid limit (LL) and plastic limit (PL) are frequently used as indicators of the behaviour of fine-grained materials. These parameters are a prerequisite in every geotechnical investigation. Careful and consistent material preparation is a key component in the laboratory procedures adopted to determine the LL and PL. In preparing samples for such tests, various techniques are used in practice, and this paper examines the influence of these techniques on the actual magnitude of LL and PL measured. The index properties of a glaciolacustrine deposit, locally known as Belfast Upper Boulder Clay, which was laid down in glacial Lake Belfast, are examined. The index properties were determined on samples of the material prepared in different ways, including drying the material at two different temperatures (40°C and 110°C), crushing the dried material from coarse granular to fine granular form by adopting varying degrees of crushing effort, and mixing the dry material with both deionised water and tap water. The...
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制备工艺对粘土各项指标性能的影响
液限(LL)和塑性限(PL)常被用作细粒材料性能的指标。这些参数是每项岩土工程调查的先决条件。仔细和一致的材料制备是用于确定LL和PL的实验室程序的关键组成部分。在为此类测试准备样品时,在实践中使用了各种技术,本文检查了这些技术对测量的LL和PL的实际大小的影响。一个冰川湖沉积,当地称为贝尔法斯特上博尔德粘土,这是奠定在贝尔法斯特冰川湖的指标性质进行了检查。在不同的干燥温度(40°C和110°C)下对物料进行干燥,采用不同的破碎力度将干燥后的物料从粗颗粒破碎成细颗粒,将干燥后的物料与去离子水和自来水混合,从而确定了物料的各项指标性能。…
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来源期刊
Geotechnical Engineering
Geotechnical Engineering ENGINEERING, GEOLOGICAL-
CiteScore
0.50
自引率
0.00%
发文量
0
期刊介绍: The objectives of the Association shall be the promotion of co-operation among geotechnical societies in SE Asia; and the assistance to member societies who have limited number of members. Now there is only one combined web titled: AGSSEA-SEAGS. SEAGS & AGSSEA encourage the submission of scholarly and practice-oriented articles to its journal. The journal is published quarterly. Both sponsors of the journal, the Southeast Asian Geotechnical Society and the Association of Geotechnical Societies in Southeast Asia, promote the ideals and goals of the International Society of Soil Mechanics and Geotechhnical Engineering in fostering communications, developing insights and enabling the advancement of the geotechnical engineering discipline.
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