%0 Conference Paper
%A Kahar, N.A.
%A Ahmad, N.R.
%A Jamin, N.H.M.
%D 2023
%F scholars:18558
%I American Institute of Physics Inc.
%R 10.1063/5.0138369
%T Compression behaviour of sandstones at Kati formation, Malaysia
%U https://khub.utp.edu.my/scholars/18558/
%V 2711
%X Weak rock usually has been an issue in a construction project. This is because the weak rock is very difficult to collect the disturbed sample to be tested to determine the soil parameter. Usually, the construction site removes or avoid the weak rock area but to minimize the project cost, we need to utilize the natural soil fully. Puncak Iskandar, Seri Iskandar, Perak are now towards the developing area, and the site mostly has weak sandstone. Therefore, this project research gives an overview of the compression behaviour of weak sandstone. This paper studied the compression behaviour on the Kati Sands through a series of oedometer tests on intact and reconstituted samples of Kati formation lightly cemented sandstone. Five lightly cemented sandstone samples were used with a void ratio value varying from 0.4 to 1. The pre-consolidation pressure of lightly cemented sandstone Kati formation was found to be 90-180 kPa. It was observed that samples with a higher void ratio had a more significant axial strain change due to lightly cementation. Furthermore, the compression index increased with the increase of the void ratio. The intact and reconstituted sample with the void ratio of 0.46 and 0.5, respectively, showed a slight effect of bonding to the compression index, although it was not that significant. The EDX showed that lightly cemented sandstone elements were mostly Silica and Oxide. In contrast, the SEM showed the shape of lightly cemented sandstone grains, mostly subangular and angular due to weathering process happened. © 2023 Author(s).
%Z cited By 0; Conference of 3rd Aceh International Symposium on Civil Engineering: Towards the Sustainable and Green Construction Promoting Advanced Materials and Technology for Disaster Resilient Infrastructure and Environments, AISCE 2021 ; Conference Date: 28 October 2021 Through 29 October 2021; Conference Code:188674