Comparison of the analytical models to determine modulus of rupture of self-compacting concrete and conventional concrete

Publisher:
CRC press/Balkema
Publication Type:
Conference Proceeding
Citation:
From Materials To Structures: Advancement Through Innovation - Proceedings Of The 22nd Australasian Conference On The Mechanics Of Structures And Materials, 2013, pp. 1105 - 1112
Issue Date:
2013-01
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Self-compacting concrete (SCC) can be placed under its own weight with no vibration efforts and is cohesive enough to be handled without segregation and bleeding. Modification in the mix design may have an influence on the materialâs mechanical properties. Therefore, it is important to investigate that whether all of the assumed hypotheses for conventional concrete (CC) to design structures are also valid for SCC structures. Modulus of rupture (MOR) or flexural strength is an indirect measurement of the tensile strength of concrete and is used to predict cracking moment in critical regions in reinforced concrete members. This paper reviews and compares the accuracy of the five models for prediction of MOR for the SCC mixtures and ten models for the CC mixtures. In addition, comparisons are made between the predicted values by MOR models and actual measured flexural strength of about 175 SCC mixtures.
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