TY - JOUR
T1 - The use of sugarcane bagasse ash and lime to improve the durability and mechanical properties of compacted soil blocks
AU - Alavéz-Ramírez, Rafael
AU - Montes-García, Pedro
AU - Martínez-Reyes, Jacobo
AU - Altamirano-Juárez, Delia Cristina
AU - Gochi-Ponce, Yadira
N1 - Funding Information:
The authors are grateful for the financial support provided by the National Polytechnic Institute of Mexico (Project No. SIP-2008029). Rafael Alavez Ramírez would like to thank the SEP, DGEST, CSA and DEPI of Mexico for generously providing a scholarship to allow him to complete his doctoral studies in Regional and Technological Development at the Instituto Tecnólogico de Oaxaca, Mexico.
PY - 2012/9
Y1 - 2012/9
N2 - This study analyzes the use of lime and sugar cane bagasse ash (SCBA) as chemical stabilizers in compacted soil blocks. The blocks were tested for flexure and compression in a dry and a saturated state. The tests were performed at 7, 14 and 28 days of age in order to evaluate the effects of the addition of lime and SCBA on the mechanical properties of the compacted soil blocks. The results indicate that blocks manufactured with 10% of lime in combination with 10% of SCBA showed better performance than those containing only lime. Nevertheless, the addition of lime improved the strength of the blocks when compared with blocks fabricated with plain soil. According to SEM and DRX analyses, considerable improvement of the matrix was observed due to the formation of strong phases, such as CSH and CAH for the mixtures with additives. It was also concluded that the combination of SCBA and lime as a replacement for cement in the stabilization of compacted soil blocks seems to be a promising alternative when considering issues of energy consumption and pollution.
AB - This study analyzes the use of lime and sugar cane bagasse ash (SCBA) as chemical stabilizers in compacted soil blocks. The blocks were tested for flexure and compression in a dry and a saturated state. The tests were performed at 7, 14 and 28 days of age in order to evaluate the effects of the addition of lime and SCBA on the mechanical properties of the compacted soil blocks. The results indicate that blocks manufactured with 10% of lime in combination with 10% of SCBA showed better performance than those containing only lime. Nevertheless, the addition of lime improved the strength of the blocks when compared with blocks fabricated with plain soil. According to SEM and DRX analyses, considerable improvement of the matrix was observed due to the formation of strong phases, such as CSH and CAH for the mixtures with additives. It was also concluded that the combination of SCBA and lime as a replacement for cement in the stabilization of compacted soil blocks seems to be a promising alternative when considering issues of energy consumption and pollution.
KW - Chemical stabilizer
KW - Compacted soil block
KW - Mechanical testing
KW - Soil classification
UR - http://www.scopus.com/inward/record.url?scp=84860631145&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2012.02.072
DO - 10.1016/j.conbuildmat.2012.02.072
M3 - Artículo
SN - 0950-0618
VL - 34
SP - 296
EP - 305
JO - Construction and Building Materials
JF - Construction and Building Materials
ER -