Strength Properties of High-Strength Concrete Containing Coal Bottom Ash as a Replacement of Aggregates
Most previous studies on the strength properties of coal bottom ash (CBA) concrete have focused on concrete with a normal compressive strength, and thus, studies on the strength properties of high-strength concrete (HSC) containing CBA are limited. Therefore, the effects of replacing fine aggregates...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/4246396 |
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| author | In-Hwan Yang Jihun Park Nhien Dinh Le Sanghwa Jung |
| author_facet | In-Hwan Yang Jihun Park Nhien Dinh Le Sanghwa Jung |
| author_sort | In-Hwan Yang |
| collection | DOAJ |
| description | Most previous studies on the strength properties of coal bottom ash (CBA) concrete have focused on concrete with a normal compressive strength, and thus, studies on the strength properties of high-strength concrete (HSC) containing CBA are limited. Therefore, the effects of replacing fine aggregates with CBA and variations in the curing age on the strength properties of HSC with a compressive strength of greater than 60 MPa were investigated in this study. The different CBA contents included 25, 50, 75, and 100%, and the different curing ages were 28 and 56 days. The mechanical properties of the HSC with CBA incorporated as fine aggregates were examined. The experimental results revealed that CBA could be partially or totally substituted for fine aggregates during HSC production. The test results also showed that the compressive, splitting tensile, and flexural strengths of the HSC containing CBA fine aggregates slightly decreased as the CBA content increased. Moreover, useful relationships between the compressive strength, splitting tensile strength, and flexural strength were suggested, and the predictions reasonably agreed with the measurements. Compared to those of the control specimen, the pulse velocities of the HSC specimens at various CBA contents decreased by less than 3%. In addition, equations for predicting the strength values of CBA concrete by using the ultrasonic pulse velocity were suggested. |
| format | Article |
| id | doaj-art-5d5e0ea165cc481abaeeab47f4531e5d |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-5d5e0ea165cc481abaeeab47f4531e5d2025-02-03T01:27:58ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/42463964246396Strength Properties of High-Strength Concrete Containing Coal Bottom Ash as a Replacement of AggregatesIn-Hwan Yang0Jihun Park1Nhien Dinh Le2Sanghwa Jung3Department of Civil Engineering, Kunsan National University, Daehak-ro 558, Kunsan, Jeonbuk 54150, Republic of KoreaDepartment of Civil Engineering, Kunsan National University, Daehak-ro 558, Kunsan, Jeonbuk 54150, Republic of KoreaDepartment of Civil Engineering, Kunsan National University, Daehak-ro 558, Kunsan, Jeonbuk 54150, Republic of KoreaKorea Conformity Laboratories, Seoul 08503, Republic of KoreaMost previous studies on the strength properties of coal bottom ash (CBA) concrete have focused on concrete with a normal compressive strength, and thus, studies on the strength properties of high-strength concrete (HSC) containing CBA are limited. Therefore, the effects of replacing fine aggregates with CBA and variations in the curing age on the strength properties of HSC with a compressive strength of greater than 60 MPa were investigated in this study. The different CBA contents included 25, 50, 75, and 100%, and the different curing ages were 28 and 56 days. The mechanical properties of the HSC with CBA incorporated as fine aggregates were examined. The experimental results revealed that CBA could be partially or totally substituted for fine aggregates during HSC production. The test results also showed that the compressive, splitting tensile, and flexural strengths of the HSC containing CBA fine aggregates slightly decreased as the CBA content increased. Moreover, useful relationships between the compressive strength, splitting tensile strength, and flexural strength were suggested, and the predictions reasonably agreed with the measurements. Compared to those of the control specimen, the pulse velocities of the HSC specimens at various CBA contents decreased by less than 3%. In addition, equations for predicting the strength values of CBA concrete by using the ultrasonic pulse velocity were suggested.http://dx.doi.org/10.1155/2020/4246396 |
| spellingShingle | In-Hwan Yang Jihun Park Nhien Dinh Le Sanghwa Jung Strength Properties of High-Strength Concrete Containing Coal Bottom Ash as a Replacement of Aggregates Advances in Materials Science and Engineering |
| title | Strength Properties of High-Strength Concrete Containing Coal Bottom Ash as a Replacement of Aggregates |
| title_full | Strength Properties of High-Strength Concrete Containing Coal Bottom Ash as a Replacement of Aggregates |
| title_fullStr | Strength Properties of High-Strength Concrete Containing Coal Bottom Ash as a Replacement of Aggregates |
| title_full_unstemmed | Strength Properties of High-Strength Concrete Containing Coal Bottom Ash as a Replacement of Aggregates |
| title_short | Strength Properties of High-Strength Concrete Containing Coal Bottom Ash as a Replacement of Aggregates |
| title_sort | strength properties of high strength concrete containing coal bottom ash as a replacement of aggregates |
| url | http://dx.doi.org/10.1155/2020/4246396 |
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