Strength Development of Lime Treated Artificial Organic Soil

Soft Soil Engineering International Conference 2015

Yeo, S.W.^1 ; Ling, F.N.L.^1 ; Sulaeman, A.^2 ; Low, V.S.^1 ; Toh, K.L.^1

Research Center for Soft Soil, Universiti Tun Hussein Onn Malaysia, Batu Pahat Johor

86400, Malaysia^1

Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, Batu Pahat Johor

86400, Malaysia^2

关键词: Contributing factor;    Fulvic acids;    Humic acid;    Inorganic matters;    Organic acid concentration;    Soft soils;    Strength development;    Unconfined compressive strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/136/1/012011/pdf
DOI  :  10.1088/1757-899X/136/1/012011

来源: IOP

【 摘 要 】

In over many years, considerable research has been carried out on organic soils which consists of various components of organic matter but the effect of particular organic matter is less reported. Thus, some of contributing factors for each organic matter are not fully understood yet. Hence, the aim of this study is to determine the effect of organic acid concentration on the strength of artificial organic soil. There are four types of artificial organic soil created by mixing kaolin (inorganic matter) and organic acid (a kind of humified organic matter) in different concentrations. Unconfined Compressive Strength test (UCT) was carried out for all soil samples after being cured for 7 and 28 days under room temperature and 50°C. Soil samples shows highest strength when cured for 28 days under 50°C compared to those cured under room temperature. However, when the organic acid concentration decrease, the strength increased for soil 2 after 7 and 28 days cured under room temperature and 50°C. Apart from this, soil 3 and soil 4 that were cured under room temperature shows decrease in strength when the organic acid concentration decreasing but different result shown for both samples when cured under 50°C.