Physico-mechanical characteristics of tropical granite boulders in weathered heterogeneous zones for geotechnical design purposes

M.F.A. Md Dan, M.F.A. Md Dan and M. Edy Tonnizam, M. Edy Tonnizam and I. Komoo, I. Komoo and A. Madun, A. Madun and M.K. Abu Talib, M.K. Abu Talib and P.J. Ramadhansyah, P.J. Ramadhansyah and A. Mohd Taib, A. Mohd Taib and D.Z. Abang Hasbollah, D.Z. Abang Hasbollah and Z. Md Yusof, Z. Md Yusof and M.N. Noorasyikin, M.N. Noorasyikin (2023) Physico-mechanical characteristics of tropical granite boulders in weathered heterogeneous zones for geotechnical design purposes. Physics and Chemistry of the Earth, 129. pp. 1-12.

[img] Text
Restricted to Registered users only

Download (1MB) | Request a copy


The presence of isolated or clustered granite boulders in tropical weathered masses commonly formed a very thick heterogeneous zone in weathering Zone 3 to 5. The boulders with various characteristics are always misinterpreted during the geotechnical design process due to being poorly understood and studied. This study aims to determine the physico-mechanical characteristics of boulders in different weathering zones for design purposes. The parameters studied include boulder types, porosity, density, durability, point load and uniaxial compressive strength. Results revealed boulders in weathering Zone 3, 4 and 5 can be classified into Type A, B and C, respectively. These boulders have significant differences in physical and mechanical properties. The boulders in Zone 4 and 5 consists of corestone, ringlets and saprolites and the boulders in Zone 3 have no ringlets. Corestones have the highest durability, point load and compressibility strength with a median of 94.5%, 7.80 MPa and 187.07 MPa, respectively. The ringlets possess the highest porosity range of 23.3%–31.3% compared with saprolite. Saprolite in Zone 5 has the lowest durability, point load and compressive strength with respectively less than 7%, 0.22 MPa and 1 MPa. The various characteristics of the boulders in different weathering zones could influence the geotechnical design model.

Item Type: Article
Uncontrolled Keywords: Heterogeneous zone Granite weathering Boulders Physico-mechanical properties Geotechnical design
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA170-171 Environmental engineering
Divisions: Faculty of Civil Engineering and Built Environment > Department of Architecture
Depositing User: Mr. Mohamad Zulkhibri Rahmad
Date Deposited: 25 Oct 2023 07:15
Last Modified: 25 Oct 2023 07:15

Actions (login required)

View Item View Item