Laboratory test on maximum and minimum void ratio of tropical sand matrix soils

4th International Conference on Civil and Environmental Engineering for Sustainability

地球科学;生态环境科学;经济学

Othman, B.A.^1 ; Marto, A.^1

Disaster Preparedness and Prevention Centre, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia Kuala Lumpur, Kuala Lumpur

54100, Malaysia^1

关键词: Coarse sands;    Different sizes;    Fines content;    Laboratory test;    Low plasticities;    Minimal value;    Mining sites;    Natural conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/140/1/012084/pdf
DOI  :  10.1088/1755-1315/140/1/012084

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Sand is generally known as loose granular material which has a grain size finer than gravel and coarser than silt and can be very angular to well-rounded in shape. The present of various amount of fines which also influence the loosest and densest state of sand in natural condition have been well known to contribute to the deformation and loss of shear strength of soil. This paper presents the effect of various range of fines content on minimum void ratio eminand maximum void ratio emaxof sand matrix soils. Laboratory tests to determine eminand emaxof sand matrix soil were conducted using non-standard method introduced by previous researcher. Clean sand was obtained from natural mining site at Johor, Malaysia. A set of 3 different sizes of sand (fine sand, medium sand, and coarse sand) were mixed with 0% to 40% by weight of low plasticity fine (kaolin). Results showed that generally eminand emaxdecreased with the increase of fines content up to a minimal value of 0% to 30%, and then increased back thereafter.