@Article{jrm.2023.025100,
AUTHOR = {Waleed Awadalseed, Honghua Zhao, Hemei Sun, Ming Huang, Cong Liu},
TITLE = {Expansive Soil Stabilization by Bagasse Ash in Partial Replacement of Cement},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {11},
YEAR = {2023},
NUMBER = {4},
PAGES = {1911--1935},
URL = {http://www.techscience.com/jrm/v11n4/50695},
ISSN = {2164-6341},
ABSTRACT = {This study examined the effects of using bagasse ash in replacement of ordinary Portland cement (OPC) in the
treatment of expansive soils. The study concentrated on the compaction characteristics, volume change, compressive strength, splitting tensile strength, microstructure, California bearing ratio (CBR) value, and shear wave velocity of expansive soils treated with cement. Different bagasse ash replacement ratios were used to create soil
samples. At varying curing times of 7, 14, and 28 days, standard compaction tests, unconfined compressive
strength tests, CBR tests, Brazilian split tensile testing, and bender element (BE) tests were carried out. According
to X-ray diffraction (XRD) investigations, quartz and crystobalite make up the majority of the minerals in bagasse
ash. Bagasse ash contains a variety of grain sizes, including numerous fiber-shaped particles, according to a scanning electronic microscope (SEM) test. For all of the treated specimens with various replacement ratios, the overall additive content has not changed. The results of the Brazilian split tensile tests demonstrate improved tensile
strength for all specimens with various replacement proportions. A lower maximum dry density and a greater
optimal water content would result from the substitution of bagasse ash. When the replacement ratio is not more
than 20%, the CBR values of the parts replaced specimens are even higher than the cement treatments. The results
of BE testing on the treated soils show that there is significant stiffness anisotropy but that it steadily diminishes
with curing time and replacement ratio. According to the study, bagasse ash is a useful mineral additive, and the
best replacement ratio (CBA20) is 20%.},
DOI = {10.32604/jrm.2023.025100}
}