Journal of Advanced Research in Applied Sciences and Engineering Technology 30, Issue 3 (2023) 182-191 182 Journal of Advanced Research in Applied Sciences and Engineering Technology Journal homepage: https://semarakilmu.com.my/journals/index.php/applied_sciences_eng_tech/index ISSN: 2462-1943 Geotechnical Properties on Residual Soil of Sedimentary Rock Farah Wahida Mohd Latib 1,* , Anuar Kasa 2 , Mohd Fairuz Bachok 3 1 Civil Engineering Studies, College of Engineering, Universiti Teknologi MARA Pahang Branch, Bandar Pusat Jengka, Pahang, Malaysia 2 Department of Civil and Structural Engineering, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia 3 Civil Engineering Studies, College of Engineering, Universiti Teknologi MARA Johor Branch, Bandar Seri Alam, Masai, Johor, Malaysia ARTICLE INFO ABSTRACT Article history: Received 5 December 2022 Received in revised form 13 April 2023 Accepted 21 April 2023 Available online 11 May 2023 The residual soil is one of the major soils in the peninsular region of Malaysia. Because of this, engineering activities can employ this kind of residual soil in the building industry, such as retaining walls and high-rise building. Yet, because it is structurally complicated and has substantial weathering in most locations, the residual soil often brings in heterogeneities, which can lead to the failure of a structure. Finding the value of the shear strength parameters as a geotechnical properties is the key to solving this problem, which may be done here. After the soil samples had been compacted, they were put through a series triaxial tests, namely Consolidated Drained (CD) and Consolidated Undrained (CU) tests. A total of eight soil samples, four for each test were used for this study. As a consequence of the tests that have been carried out, the value of the cohesion parameter, c', as recorded by the CD test is greater than that recorded by the CU test. On the other hand, the value of the friction angle, ϕ ', as recorded by the CU test is greater than that recorded by the CD test. In the meantime, with regard to the stress-strain behaviour, the brittle failure pattern was seen in each and every sample that was put through the CD test. The pattern that was seen in the results of the CU test was also seen in the results of the CD test. The output of this study makes it abundantly evident that the maximum values for pore water pressure, lateral stress, and axial strain would be significantly increased if the effective confining stress that was applied to the sample was increased to a higher value. Keywords: Consolidated drained; consolidated undrained; sedimentary residual soil; shear strength parameters 1. Introduction Geotechnical engineering is the most essential subfield of engineering in the building industry. This is due to the fact that the even distribution of loads on the ground plays an important part in maintaining the stability of the created structure [1]. Residual soil is one of the forms of soil that is frequently utilized, although there are certain issues with using this type of soil. According to the findings of many researchers [2-11], residual soil has a lot of potential for uncertainty because the degree to which weathering progresses at varying rates throughout the various layers of this soil. On the other hand, given that [2] found that over 70 percent of the land in Malaysia is composed of residual soil, construction projects are compelled to make use of this soil as the primary medium. * Corresponding author. E-mail address: farahwahidaml@uitm.edu.my https://doi.org/10.37934/araset.30.3.182191