TY - GEN
T1 - Sodium Chloride Stabilization of Urban Soils Prone to Tubing Phenomena
AU - Alvarado, Cinthya
AU - Pérez, Aaron
AU - Rosas, Luz
AU - Alvarado-Quintana, Hernán
N1 - Publisher Copyright:
© 2022 Latin American and Caribbean Consortium of Engineering Institutions. All rights reserved.
PY - 2022
Y1 - 2022
N2 - In this research, it is proposed to stabilize the soil surrounding the water and sewerage networks with sodium chloride to avoid the formation of holes produced by leaks that cause fines dragging that weaken the soil and cause collapse, a phenomenon known as piping or internal erosion. The soil was characterized by the SUCS and AASHTO methods, carrying out the tests of sieving granulometry, sedimentation granulometry, consistency limits, and natural humidity. The compaction test was carried out by means of the modified Proctor test on the standard sample and the samples with the addition of NaCl, to obtain the maximum dry density a nd humidity, using them as a reference in the unconfined compression, CBR, and permeability tests. For each test, 4 repetitions were carried out for the standard samples and for the samples that were added with NaCl whose doses were 1.5, 3, and 4.5% by weight. At the end of the tests, it was determined that the type of standard soil is sandy clay soil with medium plasticity, classifying it as a “CL” soil according to the SUCS method and “A-6” for the AASHTO metho d. By adding 1.5% sodium chloride to clay soil, the best properties are obtained; having a 315% increase in the CBR index, an 82% increase in unconfined compressive strength, and a 21% reduction in permeability.
AB - In this research, it is proposed to stabilize the soil surrounding the water and sewerage networks with sodium chloride to avoid the formation of holes produced by leaks that cause fines dragging that weaken the soil and cause collapse, a phenomenon known as piping or internal erosion. The soil was characterized by the SUCS and AASHTO methods, carrying out the tests of sieving granulometry, sedimentation granulometry, consistency limits, and natural humidity. The compaction test was carried out by means of the modified Proctor test on the standard sample and the samples with the addition of NaCl, to obtain the maximum dry density a nd humidity, using them as a reference in the unconfined compression, CBR, and permeability tests. For each test, 4 repetitions were carried out for the standard samples and for the samples that were added with NaCl whose doses were 1.5, 3, and 4.5% by weight. At the end of the tests, it was determined that the type of standard soil is sandy clay soil with medium plasticity, classifying it as a “CL” soil according to the SUCS method and “A-6” for the AASHTO metho d. By adding 1.5% sodium chloride to clay soil, the best properties are obtained; having a 315% increase in the CBR index, an 82% increase in unconfined compressive strength, and a 21% reduction in permeability.
KW - Bearing capacity
KW - Permeability
KW - Piping
KW - Soil
KW - Stabilization
UR - http://www.scopus.com/inward/record.url?scp=85140000738&partnerID=8YFLogxK
U2 - 10.18687/LACCEI2022.1.1.345
DO - 10.18687/LACCEI2022.1.1.345
M3 - Conference contribution
AN - SCOPUS:85140000738
T3 - Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
BT - 20th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology
A2 - Larrondo Petrie, Maria M.
A2 - Texier, Jose
A2 - Pena, Andrea
A2 - Viloria, Jose Angel Sanchez
T2 - 20th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology, LACCEI 2022
Y2 - 18 July 2022 through 22 July 2022
ER -