Swelling pressure of a sodium bentonite in solutions of different suction

In this study, the swelling pressure of unsaturated, compacted bentonite-sand mixture was measured, which the all samples had experiment in dying-wetting history in suction changing. This test program used Kunigel V1 as sodium type. Constant volume swelling test was conducted out that swelling press...

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Main Authors: Sato Shin, Yamamoto Shuichi, Nishimura Tomoyoshi
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:MATEC Web of Conferences
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2021/06/matecconf_PanAm-Unsat2021_01007.pdf
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author Sato Shin
Yamamoto Shuichi
Nishimura Tomoyoshi
author_facet Sato Shin
Yamamoto Shuichi
Nishimura Tomoyoshi
author_sort Sato Shin
collection DOAJ
description In this study, the swelling pressure of unsaturated, compacted bentonite-sand mixture was measured, which the all samples had experiment in dying-wetting history in suction changing. This test program used Kunigel V1 as sodium type. Constant volume swelling test was conducted out that swelling pressure was measured using a developed apparatus. A pressure sensor was mounted in the swelling test apparatus. Previously, the all samples deformed due to suction change (i.e. drying-wetting process in suction). Two types were prepared before applying suction that were initial unsaturated condition and saturated condition on same initial dry density. Swelling pressure and adsorbed water amount was monitored in the test, which lasted for one month.
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spelling doaj.art-2097b187e75f463dbec865dd65e5fdd32022-12-21T19:05:40ZengEDP SciencesMATEC Web of Conferences2261-236X2021-01-013370100710.1051/matecconf/202133701007matecconf_PanAm-Unsat2021_01007Swelling pressure of a sodium bentonite in solutions of different suctionSato Shin0Yamamoto Shuichi1Nishimura Tomoyoshi2Nuclear waste technology department, Obayashi CorporationNuclear waste technology department, Obayashi CorporationDepartment of Civil Engineering, Ashikaga UniversityIn this study, the swelling pressure of unsaturated, compacted bentonite-sand mixture was measured, which the all samples had experiment in dying-wetting history in suction changing. This test program used Kunigel V1 as sodium type. Constant volume swelling test was conducted out that swelling pressure was measured using a developed apparatus. A pressure sensor was mounted in the swelling test apparatus. Previously, the all samples deformed due to suction change (i.e. drying-wetting process in suction). Two types were prepared before applying suction that were initial unsaturated condition and saturated condition on same initial dry density. Swelling pressure and adsorbed water amount was monitored in the test, which lasted for one month.https://www.matec-conferences.org/articles/matecconf/pdf/2021/06/matecconf_PanAm-Unsat2021_01007.pdf
spellingShingle Sato Shin
Yamamoto Shuichi
Nishimura Tomoyoshi
Swelling pressure of a sodium bentonite in solutions of different suction
MATEC Web of Conferences
title Swelling pressure of a sodium bentonite in solutions of different suction
title_full Swelling pressure of a sodium bentonite in solutions of different suction
title_fullStr Swelling pressure of a sodium bentonite in solutions of different suction
title_full_unstemmed Swelling pressure of a sodium bentonite in solutions of different suction
title_short Swelling pressure of a sodium bentonite in solutions of different suction
title_sort swelling pressure of a sodium bentonite in solutions of different suction
url https://www.matec-conferences.org/articles/matecconf/pdf/2021/06/matecconf_PanAm-Unsat2021_01007.pdf
work_keys_str_mv AT satoshin swellingpressureofasodiumbentoniteinsolutionsofdifferentsuction
AT yamamotoshuichi swellingpressureofasodiumbentoniteinsolutionsofdifferentsuction
AT nishimuratomoyoshi swellingpressureofasodiumbentoniteinsolutionsofdifferentsuction