Properties of high-workability concrete with recycled concrete aggregate
This study presents the effects of recycled concrete aggregate (RCA) on the key fresh and hardened properties of concrete. RCA was used to produce high-workability concrete substituting 0-100 natural coarse aggregate (NCA) by weight. The slump and slump flow of fresh concretes were determined to ens...
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| Format: | Article |
| Language: | English |
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Materials Research-Ibero-American Journal of Materials
2011
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/5937/1/Safiuddin-2011-Properties_of_high-w.pdf |
| _version_ | 1796945369359187968 |
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| author | Safiuddin, M. Alengaram, Ubagaram Johnson Salam, M.A. Jumaat, Mohd Zamin Jaafar, F.F. Saad, H.B. |
| author_facet | Safiuddin, M. Alengaram, Ubagaram Johnson Salam, M.A. Jumaat, Mohd Zamin Jaafar, F.F. Saad, H.B. |
| author_sort | Safiuddin, M. |
| collection | UM |
| description | This study presents the effects of recycled concrete aggregate (RCA) on the key fresh and hardened properties of concrete. RCA was used to produce high-workability concrete substituting 0-100 natural coarse aggregate (NCA) by weight. The slump and slump flow of fresh concretes were determined to ensure high workability. In addition, the compressive, flexural and splitting tensile strengths, modulus of elasticity, and permeable voids of hardened concretes were determined. The test results revealed that RCA significantly decreased the workability of concrete. RCA also affected the compressive strength, modulus of elasticity, and permeable voids of concrete. At the age of 28 days, the concrete with 100 RCA provided 12.2 lower compressive strength and 17.7 lesser modulus of elasticity than the control concrete. Also, 100 RCA increased the permeable voids of 28-day old concrete by 8.2. However, no significant negative impact of RCA was observed on the flexural and splitting tensile strengths of concrete. |
| first_indexed | 2024-03-06T05:15:36Z |
| format | Article |
| id | um.eprints-5937 |
| institution | Universiti Malaya |
| language | English |
| last_indexed | 2024-03-06T05:15:36Z |
| publishDate | 2011 |
| publisher | Materials Research-Ibero-American Journal of Materials |
| record_format | dspace |
| spelling | um.eprints-59372020-02-05T04:32:42Z http://eprints.um.edu.my/5937/ Properties of high-workability concrete with recycled concrete aggregate Safiuddin, M. Alengaram, Ubagaram Johnson Salam, M.A. Jumaat, Mohd Zamin Jaafar, F.F. Saad, H.B. TA Engineering (General). Civil engineering (General) This study presents the effects of recycled concrete aggregate (RCA) on the key fresh and hardened properties of concrete. RCA was used to produce high-workability concrete substituting 0-100 natural coarse aggregate (NCA) by weight. The slump and slump flow of fresh concretes were determined to ensure high workability. In addition, the compressive, flexural and splitting tensile strengths, modulus of elasticity, and permeable voids of hardened concretes were determined. The test results revealed that RCA significantly decreased the workability of concrete. RCA also affected the compressive strength, modulus of elasticity, and permeable voids of concrete. At the age of 28 days, the concrete with 100 RCA provided 12.2 lower compressive strength and 17.7 lesser modulus of elasticity than the control concrete. Also, 100 RCA increased the permeable voids of 28-day old concrete by 8.2. However, no significant negative impact of RCA was observed on the flexural and splitting tensile strengths of concrete. Materials Research-Ibero-American Journal of Materials 2011 Article PeerReviewed application/pdf en http://eprints.um.edu.my/5937/1/Safiuddin-2011-Properties_of_high-w.pdf Safiuddin, M. and Alengaram, Ubagaram Johnson and Salam, M.A. and Jumaat, Mohd Zamin and Jaafar, F.F. and Saad, H.B. (2011) Properties of high-workability concrete with recycled concrete aggregate. Materials Research-Ibero-American Journal of Materials, 14 (2). pp. 248-255. ISSN 1516-1439, DOI https://doi.org/10.1590/S1516-14392011005000039 <https://doi.org/10.1590/S1516-14392011005000039>. http://www.scopus.com/inward/record.url?eid=2-s2.0-79960098909&partnerID=40&md5=d70a99beb364e718a30ed279b0122414 10.1590/S1516-14392011005000039 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Safiuddin, M. Alengaram, Ubagaram Johnson Salam, M.A. Jumaat, Mohd Zamin Jaafar, F.F. Saad, H.B. Properties of high-workability concrete with recycled concrete aggregate |
| title | Properties of high-workability concrete with recycled concrete aggregate |
| title_full | Properties of high-workability concrete with recycled concrete aggregate |
| title_fullStr | Properties of high-workability concrete with recycled concrete aggregate |
| title_full_unstemmed | Properties of high-workability concrete with recycled concrete aggregate |
| title_short | Properties of high-workability concrete with recycled concrete aggregate |
| title_sort | properties of high workability concrete with recycled concrete aggregate |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.um.edu.my/5937/1/Safiuddin-2011-Properties_of_high-w.pdf |
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