Carbonation and chloride penetration of repair mortars with water treatment plant sludge and sugarcane bagasse ash sand
Water treatment plant sludge (WTPS) and sugarcane bagasse ash sand (SBAS) (wastes from water treatment and sugar/ethanol industries) can be used as replacements of natural sand in concrete. Thus, this paper aims to evaluate carbonation depth and chloride penetration of cementitious repair mortars pr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2022/11/matecconf_iccrrr22_04011.pdf |
| _version_ | 1797807613692346368 |
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| author | Hemkemeier Thiago A. Almeida Fernando C.R. Sales Almir Klemm Agnieszka J. |
| author_facet | Hemkemeier Thiago A. Almeida Fernando C.R. Sales Almir Klemm Agnieszka J. |
| author_sort | Hemkemeier Thiago A. |
| collection | DOAJ |
| description | Water treatment plant sludge (WTPS) and sugarcane bagasse ash sand (SBAS) (wastes from water treatment and sugar/ethanol industries) can be used as replacements of natural sand in concrete. Thus, this paper aims to evaluate carbonation depth and chloride penetration of cementitious repair mortars produced with WTPS and SBAS. Three mortars compositions were analysed: plain reference sample (REF); sample with 3% of WTPS (3WTPS); and sample with 30% of SBAS (30SBAS). They were subjected to tests of accelerated carbonation and immersion in NaCl solution up to 84 days (12 weeks). The results showed that SBAS mortars had the best performance in relation to carbonation and chloride penetration tests. 3WTPS mortars had similar results to the reference sample. This is due to refinement of pores given by incorporation of fine waste materials making it difficult for aggressive agents to penetrate cement matrices. Therefore, 3WTPS and 30SBAS composites can be satisfactorily used in buildings repair services for more sustainable and durable construction. |
| first_indexed | 2024-03-13T06:25:13Z |
| format | Article |
| id | doaj.art-d66b7e18c2f44f23a1e9bc8e246eb3bd |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-03-13T06:25:13Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-d66b7e18c2f44f23a1e9bc8e246eb3bd2023-06-09T09:28:14ZengEDP SciencesMATEC Web of Conferences2261-236X2022-01-013640401110.1051/matecconf/202236404011matecconf_iccrrr22_04011Carbonation and chloride penetration of repair mortars with water treatment plant sludge and sugarcane bagasse ash sandHemkemeier Thiago A.0Almeida Fernando C.R.1Sales Almir2Klemm Agnieszka J.3Department of Civil Engineering, Federal University of São CarlosDepartment of Materials Engineering and Construction, Federal University of Minas GeraisDepartment of Civil Engineering, Federal University of São CarlosSchool of Computing, Engineering and Built Environment, Glasgow Caledonian UniversityWater treatment plant sludge (WTPS) and sugarcane bagasse ash sand (SBAS) (wastes from water treatment and sugar/ethanol industries) can be used as replacements of natural sand in concrete. Thus, this paper aims to evaluate carbonation depth and chloride penetration of cementitious repair mortars produced with WTPS and SBAS. Three mortars compositions were analysed: plain reference sample (REF); sample with 3% of WTPS (3WTPS); and sample with 30% of SBAS (30SBAS). They were subjected to tests of accelerated carbonation and immersion in NaCl solution up to 84 days (12 weeks). The results showed that SBAS mortars had the best performance in relation to carbonation and chloride penetration tests. 3WTPS mortars had similar results to the reference sample. This is due to refinement of pores given by incorporation of fine waste materials making it difficult for aggressive agents to penetrate cement matrices. Therefore, 3WTPS and 30SBAS composites can be satisfactorily used in buildings repair services for more sustainable and durable construction.https://www.matec-conferences.org/articles/matecconf/pdf/2022/11/matecconf_iccrrr22_04011.pdf |
| spellingShingle | Hemkemeier Thiago A. Almeida Fernando C.R. Sales Almir Klemm Agnieszka J. Carbonation and chloride penetration of repair mortars with water treatment plant sludge and sugarcane bagasse ash sand MATEC Web of Conferences |
| title | Carbonation and chloride penetration of repair mortars with water treatment plant sludge and sugarcane bagasse ash sand |
| title_full | Carbonation and chloride penetration of repair mortars with water treatment plant sludge and sugarcane bagasse ash sand |
| title_fullStr | Carbonation and chloride penetration of repair mortars with water treatment plant sludge and sugarcane bagasse ash sand |
| title_full_unstemmed | Carbonation and chloride penetration of repair mortars with water treatment plant sludge and sugarcane bagasse ash sand |
| title_short | Carbonation and chloride penetration of repair mortars with water treatment plant sludge and sugarcane bagasse ash sand |
| title_sort | carbonation and chloride penetration of repair mortars with water treatment plant sludge and sugarcane bagasse ash sand |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2022/11/matecconf_iccrrr22_04011.pdf |
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