Cargando…

Resilient Response of Cement-Treated Coarse Post-Glacial Soil to Cyclic Load

Stabilisation with cement is an effective way to increase the stiffness of base and subbase layers and to improve the rutting of subgrade. The aim of the study is to investigate the effect of different percentages of cement additives (1.5%, 3.0%, 4.5% and 6.0%) on the resilient modulus of coarse-gra...

Descripción completa

Detalles Bibliográficos
Autores principales: Zabielska-Adamska, Katarzyna, Wasil, Mariola, Dobrzycki, Patryk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8585400/
https://www.ncbi.nlm.nih.gov/pubmed/34772021
http://dx.doi.org/10.3390/ma14216495
_version_ 1784597680630005760
author Zabielska-Adamska, Katarzyna
Wasil, Mariola
Dobrzycki, Patryk
author_facet Zabielska-Adamska, Katarzyna
Wasil, Mariola
Dobrzycki, Patryk
author_sort Zabielska-Adamska, Katarzyna
collection PubMed
description Stabilisation with cement is an effective way to increase the stiffness of base and subbase layers and to improve the rutting of subgrade. The aim of the study is to investigate the effect of different percentages of cement additives (1.5%, 3.0%, 4.5% and 6.0%) on the resilient modulus of coarse-grained soil used on road foundations. The influence of the compaction method, the standard Proctor and the modified Proctor, as well as the sample curing time is analysed. The cement addition significantly increases the resilient modulus and reduces the resilient axial strain. Extending the curing time from 7 to 28 days also improves the resilient modulus. The change in the compaction energy from standard to modified does not increase the resilient modulus of the stabilised gravelly sand due to its compaction characteristics. The test results of the resilient modulus of the gravelly sand stabilised with cement indicate the possibility of using it as a material for the road base and subbase due to meeting the AASHTO requirements. However, the non-stabilised gravelly sand does not meet the above requirements. It has been sheared during cyclic tests at the first load sequence, regardless of the compaction method.
format Online
Article
Text
id pubmed-8585400
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-85854002021-11-12 Resilient Response of Cement-Treated Coarse Post-Glacial Soil to Cyclic Load Zabielska-Adamska, Katarzyna Wasil, Mariola Dobrzycki, Patryk Materials (Basel) Article Stabilisation with cement is an effective way to increase the stiffness of base and subbase layers and to improve the rutting of subgrade. The aim of the study is to investigate the effect of different percentages of cement additives (1.5%, 3.0%, 4.5% and 6.0%) on the resilient modulus of coarse-grained soil used on road foundations. The influence of the compaction method, the standard Proctor and the modified Proctor, as well as the sample curing time is analysed. The cement addition significantly increases the resilient modulus and reduces the resilient axial strain. Extending the curing time from 7 to 28 days also improves the resilient modulus. The change in the compaction energy from standard to modified does not increase the resilient modulus of the stabilised gravelly sand due to its compaction characteristics. The test results of the resilient modulus of the gravelly sand stabilised with cement indicate the possibility of using it as a material for the road base and subbase due to meeting the AASHTO requirements. However, the non-stabilised gravelly sand does not meet the above requirements. It has been sheared during cyclic tests at the first load sequence, regardless of the compaction method. MDPI 2021-10-29 /pmc/articles/PMC8585400/ /pubmed/34772021 http://dx.doi.org/10.3390/ma14216495 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zabielska-Adamska, Katarzyna
Wasil, Mariola
Dobrzycki, Patryk
Resilient Response of Cement-Treated Coarse Post-Glacial Soil to Cyclic Load
title Resilient Response of Cement-Treated Coarse Post-Glacial Soil to Cyclic Load
title_full Resilient Response of Cement-Treated Coarse Post-Glacial Soil to Cyclic Load
title_fullStr Resilient Response of Cement-Treated Coarse Post-Glacial Soil to Cyclic Load
title_full_unstemmed Resilient Response of Cement-Treated Coarse Post-Glacial Soil to Cyclic Load
title_short Resilient Response of Cement-Treated Coarse Post-Glacial Soil to Cyclic Load
title_sort resilient response of cement-treated coarse post-glacial soil to cyclic load
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8585400/
https://www.ncbi.nlm.nih.gov/pubmed/34772021
http://dx.doi.org/10.3390/ma14216495
work_keys_str_mv AT zabielskaadamskakatarzyna resilientresponseofcementtreatedcoarsepostglacialsoiltocyclicload
AT wasilmariola resilientresponseofcementtreatedcoarsepostglacialsoiltocyclicload
AT dobrzyckipatryk resilientresponseofcementtreatedcoarsepostglacialsoiltocyclicload