Shear Strength of Remoulding Clay Samples Using Different Methods of Moulding

Soft Soil Engineering International Conference 2015

Norhaliza, W.^1,2 ; Ismail, B.^1,2 ; Azhar, A.T.S.^1,2 ; Nurul, N.J.^1,2

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: Clay soil;    Compaction methods;    Ground modification;    Natural formations;    Optimum moisture content;    Soft soils;    Soil stability;    Undisturbed sample;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/136/1/012018/pdf
DOI  :  10.1088/1757-899X/136/1/012018

来源: IOP

【 摘 要 】

Shear strength for clay soil was required to determine the soil stability. Clay was known as a soil with complex natural formations and very difficult to obtain undisturbed samples at the site. The aim of this paper was to determine the unconfined shear strength of remoulded clay on different methods in moulding samples which were proctor compaction, hand operated soil compacter and miniature mould methods. All the samples were remoulded with the same optimum moisture content (OMC) and density that were 18% and 1880 kg/m3respectively. The unconfined shear strength results of remoulding clay soils for proctor compaction method was 289.56kPa with the strain 4.8%, hand operated method was 261.66kPa with the strain 4.4% and miniature mould method was 247.52kPa with the strain 3.9%. Based on the proctor compaction method, the reduction percentage of unconfined shear strength of remoulded clay soil of hand operated method was 9.66%, and for miniature mould method was 14.52%. Thus, because there was no significant difference of reduction percentage of unconfined shear strength between three different methods, so it can be concluded that remoulding clay by hand operated method and miniature mould method were accepted and suggested to perform remoulding clay samples by other future researcher. However for comparison, the hand operated method was more suitable to form remoulded clay sample in term of easiness, saving time and less energy for unconfined shear strength determination purposes.