Cargando…
Ink-bottle Effect and Pore Size Distribution of Cementitious Materials Identified by Pressurization–Depressurization Cycling Mercury Intrusion Porosimetry
Capturing the long-term performance of concrete must be underpinned by a detailed understanding of the pore structure. Mercury intrusion porosimetry (MIP) is a widely used technique for pore structure characterization. However, it has been proven inappropriate to measure the pore size distribution o...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539383/ https://www.ncbi.nlm.nih.gov/pubmed/31060298 http://dx.doi.org/10.3390/ma12091454 |
_version_ | 1783422374999228416 |
---|---|
author | Zhang, Yong Yang, Bin Yang, Zhengxian Ye, Guang |
author_facet | Zhang, Yong Yang, Bin Yang, Zhengxian Ye, Guang |
author_sort | Zhang, Yong |
collection | PubMed |
description | Capturing the long-term performance of concrete must be underpinned by a detailed understanding of the pore structure. Mercury intrusion porosimetry (MIP) is a widely used technique for pore structure characterization. However, it has been proven inappropriate to measure the pore size distribution of cementitious materials due to the ink-bottle effect. MIP with cyclic pressurization–depressurization can overcome the ink-bottle effect and enables a distinction between large (ink-bottle) pores and small (throat) pores. In this paper, pressurization–depressurization cycling mercury intrusion porosimetry (PDC-MIP) is adopted to characterize the pore structure in a range of cementitious pastes cured from 28 to 370 days. The results indicate that PDC-MIP provides a more accurate estimation of the pore size distribution in cementitious pastes than the standard MIP. Bimodal pore size distributions can be obtained by performing PDC-MIP measurements on cementitious pastes, regardless of the age. Water–binder ratio, fly ash and limestone powder have considerable influences on the formation of capillary pores ranging from 0.01 to 0.5 µm. |
format | Online Article Text |
id | pubmed-6539383 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-65393832019-06-05 Ink-bottle Effect and Pore Size Distribution of Cementitious Materials Identified by Pressurization–Depressurization Cycling Mercury Intrusion Porosimetry Zhang, Yong Yang, Bin Yang, Zhengxian Ye, Guang Materials (Basel) Article Capturing the long-term performance of concrete must be underpinned by a detailed understanding of the pore structure. Mercury intrusion porosimetry (MIP) is a widely used technique for pore structure characterization. However, it has been proven inappropriate to measure the pore size distribution of cementitious materials due to the ink-bottle effect. MIP with cyclic pressurization–depressurization can overcome the ink-bottle effect and enables a distinction between large (ink-bottle) pores and small (throat) pores. In this paper, pressurization–depressurization cycling mercury intrusion porosimetry (PDC-MIP) is adopted to characterize the pore structure in a range of cementitious pastes cured from 28 to 370 days. The results indicate that PDC-MIP provides a more accurate estimation of the pore size distribution in cementitious pastes than the standard MIP. Bimodal pore size distributions can be obtained by performing PDC-MIP measurements on cementitious pastes, regardless of the age. Water–binder ratio, fly ash and limestone powder have considerable influences on the formation of capillary pores ranging from 0.01 to 0.5 µm. MDPI 2019-05-05 /pmc/articles/PMC6539383/ /pubmed/31060298 http://dx.doi.org/10.3390/ma12091454 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhang, Yong Yang, Bin Yang, Zhengxian Ye, Guang Ink-bottle Effect and Pore Size Distribution of Cementitious Materials Identified by Pressurization–Depressurization Cycling Mercury Intrusion Porosimetry |
title | Ink-bottle Effect and Pore Size Distribution of Cementitious Materials Identified by Pressurization–Depressurization Cycling Mercury Intrusion Porosimetry |
title_full | Ink-bottle Effect and Pore Size Distribution of Cementitious Materials Identified by Pressurization–Depressurization Cycling Mercury Intrusion Porosimetry |
title_fullStr | Ink-bottle Effect and Pore Size Distribution of Cementitious Materials Identified by Pressurization–Depressurization Cycling Mercury Intrusion Porosimetry |
title_full_unstemmed | Ink-bottle Effect and Pore Size Distribution of Cementitious Materials Identified by Pressurization–Depressurization Cycling Mercury Intrusion Porosimetry |
title_short | Ink-bottle Effect and Pore Size Distribution of Cementitious Materials Identified by Pressurization–Depressurization Cycling Mercury Intrusion Porosimetry |
title_sort | ink-bottle effect and pore size distribution of cementitious materials identified by pressurization–depressurization cycling mercury intrusion porosimetry |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539383/ https://www.ncbi.nlm.nih.gov/pubmed/31060298 http://dx.doi.org/10.3390/ma12091454 |
work_keys_str_mv | AT zhangyong inkbottleeffectandporesizedistributionofcementitiousmaterialsidentifiedbypressurizationdepressurizationcyclingmercuryintrusionporosimetry AT yangbin inkbottleeffectandporesizedistributionofcementitiousmaterialsidentifiedbypressurizationdepressurizationcyclingmercuryintrusionporosimetry AT yangzhengxian inkbottleeffectandporesizedistributionofcementitiousmaterialsidentifiedbypressurizationdepressurizationcyclingmercuryintrusionporosimetry AT yeguang inkbottleeffectandporesizedistributionofcementitiousmaterialsidentifiedbypressurizationdepressurizationcyclingmercuryintrusionporosimetry |