Open AccessTHE EFFECT OF UTILIZING SILICA FUME AND EGGSHELL ASH ON THE GEOTECHNICAL PROPERTIES OF SOFT KAOLIN CLAY
Author(s) -
Muhammad Syamsul Imran Zaini,
Muzamir Hasan,
Ling Sin Yie,
Khairil Azman Masri,
Ramadhansyah Putra Jaya,
Masayuki Hyodo,
Michael James Winter
Publication year - 2021
Publication title -
jurnal teknologi/jurnal teknologi
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.191
H-Index - 22
eISSN - 2180-3722
pISSN - 0127-9696
DOI - 10.11113/jurnalteknologi.v84.17115
Subject(s) - lime , cement , soil stabilization , geotechnical engineering , water content , shear strength (soil) , stabilizer (aeronautics) , materials science , soil water , environmental science , geology , metallurgy , soil science , engineering , mechanical engineering
The application of chemical stabilizer in soil stabilization can effectively reduce the negative environmental impact in the construction industry. However, the stabilization of soft clay remains a challenge due to the costly and non-eco-friendly materials such as cement and lime. This research demonstrates the combination of SF and ESA in stabilizing the kaolin soils, based on the basic engineering properties and undrained shear strength (USS). Its effect was studied via the inclusion as cement replacement material in kaolin soil at 2, 4 and 6% (by weight of dry soft kaolin clay soil) of SF and ESA substitutions of 3, 6 and 9% (by weight of dry soft kaolin clay and SF content). The result shows a considerably lower specific gravity (4.9% reduction), reduced plasticity index (PI)(48.4% reduction), decreased maximum dry density (MDD) (5.5% reduction), increased optimum moisture content (OMC)(8.7% increment), and higher USS (68.8%). In conclusion, the combinations of SF and ESA as soil stabilization agents successfully enhance the soil strength of the kaolin opening a route to the low cost and eco-friendly materials in soil stabilization.