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Study on Carbonation Resistance of Polymer-Modified Sulphoaluminate Cement-Based Materials
The use of tricyclic copolymer latex (AMPS) can effectively improve the carbonation resistance of sulphoaluminate cement. This paper investigated polymer AMPS and polycarboxylic acid to modify sulphoaluminate cement materials by exploring the carbonation level of sulphoaluminate cement paste and mor...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9738528/ https://www.ncbi.nlm.nih.gov/pubmed/36500132 http://dx.doi.org/10.3390/ma15238635 |
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author | Zhang, Ping Zhang, Bingxin Fang, Yanfeng Chang, Jun |
author_facet | Zhang, Ping Zhang, Bingxin Fang, Yanfeng Chang, Jun |
author_sort | Zhang, Ping |
collection | PubMed |
description | The use of tricyclic copolymer latex (AMPS) can effectively improve the carbonation resistance of sulphoaluminate cement. This paper investigated polymer AMPS and polycarboxylic acid to modify sulphoaluminate cement materials by exploring the carbonation level of sulphoaluminate cement paste and mortar and the strength before and after carbonation. Then, the optimal dosage of polymer and polycarboxylic acid was obtained so that the carbonation resistance of sulphoaluminate cement reached the best state. The compressive strength was significantly improved by adding AMPS for sulphoaluminate cement paste and mortar. After carbonation, the strength decreased and combined with the carbonation level; it was concluded that the carbonation resistance of sulphoaluminate cement materials was the best when the optimal dosage of AMPS and polycarboxylic acid was 5% and 1.8%, respectively. Due to the addition of AMPS, the hydrated calcium aluminosilicate (C-A-S-H) and hydrated calcium silicate (C-S-H) gels, generated by the hydration of sulphoaluminate cement and the surface of unreacted cement particles, are wrapped by AMPS particles. The water is discharged through cement hydration. The polymer particles on the surface of the hydration product merge into a continuous film, which binds the cement hydration product together to form an overall network structure, penetrating the entire cement hydration phase and forming a polymer cement mortar with excellent structural sealing performance. To prevent the entry of CO(2) and achieve the effect of anti-carbonation, adding polycarboxylic acid mainly improves the sample’s internal density to achieve the anti-carbonation purpose. |
format | Online Article Text |
id | pubmed-9738528 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-97385282022-12-11 Study on Carbonation Resistance of Polymer-Modified Sulphoaluminate Cement-Based Materials Zhang, Ping Zhang, Bingxin Fang, Yanfeng Chang, Jun Materials (Basel) Article The use of tricyclic copolymer latex (AMPS) can effectively improve the carbonation resistance of sulphoaluminate cement. This paper investigated polymer AMPS and polycarboxylic acid to modify sulphoaluminate cement materials by exploring the carbonation level of sulphoaluminate cement paste and mortar and the strength before and after carbonation. Then, the optimal dosage of polymer and polycarboxylic acid was obtained so that the carbonation resistance of sulphoaluminate cement reached the best state. The compressive strength was significantly improved by adding AMPS for sulphoaluminate cement paste and mortar. After carbonation, the strength decreased and combined with the carbonation level; it was concluded that the carbonation resistance of sulphoaluminate cement materials was the best when the optimal dosage of AMPS and polycarboxylic acid was 5% and 1.8%, respectively. Due to the addition of AMPS, the hydrated calcium aluminosilicate (C-A-S-H) and hydrated calcium silicate (C-S-H) gels, generated by the hydration of sulphoaluminate cement and the surface of unreacted cement particles, are wrapped by AMPS particles. The water is discharged through cement hydration. The polymer particles on the surface of the hydration product merge into a continuous film, which binds the cement hydration product together to form an overall network structure, penetrating the entire cement hydration phase and forming a polymer cement mortar with excellent structural sealing performance. To prevent the entry of CO(2) and achieve the effect of anti-carbonation, adding polycarboxylic acid mainly improves the sample’s internal density to achieve the anti-carbonation purpose. MDPI 2022-12-03 /pmc/articles/PMC9738528/ /pubmed/36500132 http://dx.doi.org/10.3390/ma15238635 Text en © 2022 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 Zhang, Ping Zhang, Bingxin Fang, Yanfeng Chang, Jun Study on Carbonation Resistance of Polymer-Modified Sulphoaluminate Cement-Based Materials |
title | Study on Carbonation Resistance of Polymer-Modified Sulphoaluminate Cement-Based Materials |
title_full | Study on Carbonation Resistance of Polymer-Modified Sulphoaluminate Cement-Based Materials |
title_fullStr | Study on Carbonation Resistance of Polymer-Modified Sulphoaluminate Cement-Based Materials |
title_full_unstemmed | Study on Carbonation Resistance of Polymer-Modified Sulphoaluminate Cement-Based Materials |
title_short | Study on Carbonation Resistance of Polymer-Modified Sulphoaluminate Cement-Based Materials |
title_sort | study on carbonation resistance of polymer-modified sulphoaluminate cement-based materials |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9738528/ https://www.ncbi.nlm.nih.gov/pubmed/36500132 http://dx.doi.org/10.3390/ma15238635 |
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