RISK ASSESSMENT OF A POTENTIAL EXTERNAL AND INTERNAL SULFATE ATTACK IN POZZOLANIC CEMENTITIOUS MATRICES
This work evaluated the behavior of cementitious composites against internal and external attack by sulfates (ISA and ESA, respectively) over time, as well as the mitigating potential of Brazilian cements considered pozzolanic. Three pozzolanic cements called sulfate resistant according to Brazilia...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Catarina (UFSC)
2025-05-01
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| Series: | Mix Sustentável |
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| Online Access: | https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/7776 |
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| author | Luriane Zago Perondi Nicole Pagan Hasparyk Francieli Tiecher Bonsembiante |
| author_facet | Luriane Zago Perondi Nicole Pagan Hasparyk Francieli Tiecher Bonsembiante |
| author_sort | Luriane Zago Perondi |
| collection | DOAJ |
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This work evaluated the behavior of cementitious composites against internal and external attack by sulfates (ISA and ESA, respectively) over time, as well as the mitigating potential of Brazilian cements considered pozzolanic. Three pozzolanic cements called sulfate resistant according to Brazilian standards were evaluated, coming from three regions of Brazil, in addition to a reference cement, with high initial resistance. Based on evaluations by Brazilian (ABNT) and American (ASTM) standardization, it was found that the use of pozzolanic additions to cement brings mainly mechanical and durability improvements in relation to external sulfate attack, however, depending on the standardization adopted, it is not possible to say whether it contributed to the mitigation of this attack. In relation to ISA assessments, no cement proved to be effective. Therefore, among the four cements tested, considering the criteria adopted in the study, no cement could be considered to mitigate expansions caused by both sulfate attacks, external - (ESA) and internal - (ISA).
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| format | Article |
| id | doaj-art-91277166beda4c73a0c8b913b4ca3ed8 |
| institution | Kabale University |
| issn | 2447-0899 2447-3073 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Universidade Federal de Santa Catarina (UFSC) |
| record_format | Article |
| series | Mix Sustentável |
| spelling | doaj-art-91277166beda4c73a0c8b913b4ca3ed82025-08-20T03:54:01ZengUniversidade Federal de Santa Catarina (UFSC)Mix Sustentável2447-08992447-30732025-05-0111110.29183/2447-3073.MIX2025.v11.n1.119-132RISK ASSESSMENT OF A POTENTIAL EXTERNAL AND INTERNAL SULFATE ATTACK IN POZZOLANIC CEMENTITIOUS MATRICESLuriane Zago Perondi0Nicole Pagan Hasparyk 1Francieli Tiecher Bonsembiante 2ATITUS EducaçãoELETROBRAS FURNASATITUS Educação This work evaluated the behavior of cementitious composites against internal and external attack by sulfates (ISA and ESA, respectively) over time, as well as the mitigating potential of Brazilian cements considered pozzolanic. Three pozzolanic cements called sulfate resistant according to Brazilian standards were evaluated, coming from three regions of Brazil, in addition to a reference cement, with high initial resistance. Based on evaluations by Brazilian (ABNT) and American (ASTM) standardization, it was found that the use of pozzolanic additions to cement brings mainly mechanical and durability improvements in relation to external sulfate attack, however, depending on the standardization adopted, it is not possible to say whether it contributed to the mitigation of this attack. In relation to ISA assessments, no cement proved to be effective. Therefore, among the four cements tested, considering the criteria adopted in the study, no cement could be considered to mitigate expansions caused by both sulfate attacks, external - (ESA) and internal - (ISA). https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/7776Internal sulfate attack (ISA). External attack by sulfates (ESA). Late ettringite formation (DEF). Pozzolan. Pozzolanic cement. |
| spellingShingle | Luriane Zago Perondi Nicole Pagan Hasparyk Francieli Tiecher Bonsembiante RISK ASSESSMENT OF A POTENTIAL EXTERNAL AND INTERNAL SULFATE ATTACK IN POZZOLANIC CEMENTITIOUS MATRICES Mix Sustentável Internal sulfate attack (ISA). External attack by sulfates (ESA). Late ettringite formation (DEF). Pozzolan. Pozzolanic cement. |
| title | RISK ASSESSMENT OF A POTENTIAL EXTERNAL AND INTERNAL SULFATE ATTACK IN POZZOLANIC CEMENTITIOUS MATRICES |
| title_full | RISK ASSESSMENT OF A POTENTIAL EXTERNAL AND INTERNAL SULFATE ATTACK IN POZZOLANIC CEMENTITIOUS MATRICES |
| title_fullStr | RISK ASSESSMENT OF A POTENTIAL EXTERNAL AND INTERNAL SULFATE ATTACK IN POZZOLANIC CEMENTITIOUS MATRICES |
| title_full_unstemmed | RISK ASSESSMENT OF A POTENTIAL EXTERNAL AND INTERNAL SULFATE ATTACK IN POZZOLANIC CEMENTITIOUS MATRICES |
| title_short | RISK ASSESSMENT OF A POTENTIAL EXTERNAL AND INTERNAL SULFATE ATTACK IN POZZOLANIC CEMENTITIOUS MATRICES |
| title_sort | risk assessment of a potential external and internal sulfate attack in pozzolanic cementitious matrices |
| topic | Internal sulfate attack (ISA). External attack by sulfates (ESA). Late ettringite formation (DEF). Pozzolan. Pozzolanic cement. |
| url | https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/7776 |
| work_keys_str_mv | AT lurianezagoperondi riskassessmentofapotentialexternalandinternalsulfateattackinpozzolaniccementitiousmatrices AT nicolepaganhasparyk riskassessmentofapotentialexternalandinternalsulfateattackinpozzolaniccementitiousmatrices AT francielitiecherbonsembiante riskassessmentofapotentialexternalandinternalsulfateattackinpozzolaniccementitiousmatrices |