Steel–concrete bond strength of lightweight self-consolidating concrete
The bond behavior of lightweight self-consolidating concrete (LWSCC) must be understood in order to use this type of high performance concrete in structural members. The objective of this research program is to assess the bond behavior of reinforcing steel bars embedded in LWSCC members. Three diffe...
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| Veröffentlicht in: | Materials and structures 2009-08, Vol.42 (7), p.1015-1023 |
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| container_title | Materials and structures |
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| creator | Lachemi, M. Bae, S. Hossain, K. M. A. Sahmaran, M. |
| description | The bond behavior of lightweight self-consolidating concrete (LWSCC) must be understood in order to use this type of high performance concrete in structural members. The objective of this research program is to assess the bond behavior of reinforcing steel bars embedded in LWSCC members. Three different classes of LWSCC mixtures were developed with two different types of lightweight aggregates. In addition, one normal weight SCC (NWSCC) was developed and used as a control mixture. A total of twenty four pullout tests were conducted on deformed reinforcing bars with an embedded length of either 100 or 200 mm and the load-slip responses, failure modes and bond strengths of LWSCC and NWSCC were compared. Based on the results of this study, the bond strength of deformed bars for LWSCCs are found to be less (between 16 and 38%) as compared with NWSCC. Under the conditions of equivalent workability properties and compressive strength, bond slip properties were shown to be significantly influenced by the type of lightweight aggregate used. In this study, the use of expanded shale in the production of LWSCC significantly enhanced the pullout strength when compared with lightweight slag aggregate. |
| doi_str_mv | 10.1617/s11527-008-9440-4 |
| format | Article |
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Under the conditions of equivalent workability properties and compressive strength, bond slip properties were shown to be significantly influenced by the type of lightweight aggregate used. In this study, the use of expanded shale in the production of LWSCC significantly enhanced the pullout strength when compared with lightweight slag aggregate.</description><identifier>ISSN: 1359-5997</identifier><identifier>EISSN: 1871-6873</identifier><identifier>DOI: 10.1617/s11527-008-9440-4</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Aggregates ; Applied sciences ; Bond strength ; Building construction ; Building Materials ; Buildings. Public works ; Civil Engineering ; Concrete ; Concretes. Mortars. 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M. A.</au><au>Sahmaran, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Steel–concrete bond strength of lightweight self-consolidating concrete</atitle><jtitle>Materials and structures</jtitle><stitle>Mater Struct</stitle><date>2009-08-01</date><risdate>2009</risdate><volume>42</volume><issue>7</issue><spage>1015</spage><epage>1023</epage><pages>1015-1023</pages><issn>1359-5997</issn><eissn>1871-6873</eissn><abstract>The bond behavior of lightweight self-consolidating concrete (LWSCC) must be understood in order to use this type of high performance concrete in structural members. The objective of this research program is to assess the bond behavior of reinforcing steel bars embedded in LWSCC members. Three different classes of LWSCC mixtures were developed with two different types of lightweight aggregates. In addition, one normal weight SCC (NWSCC) was developed and used as a control mixture. 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| subjects | Aggregates Applied sciences Bond strength Building construction Building Materials Buildings. Public works Civil Engineering Concrete Concretes. Mortars. Grouts Engineering Exact sciences and technology Machines Manufacturing Materials Materials Science Original Article Other special applications (sand concrete, roller compacted concrete, heavy concrete, architectural concrete, etc.) Processes Solid Mechanics Steel Theoretical and Applied Mechanics |
| title | Steel–concrete bond strength of lightweight self-consolidating concrete |
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