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Title: Strength evaluation of recycled-aggregate concrete by in-situ tests
Authors: Sri Ravindrajah, R.
Loo, Y.H. 
Tam, C.T. 
Issue Date: Jul-1988
Citation: Sri Ravindrajah, R.,Loo, Y.H.,Tam, C.T. (1988-07). Strength evaluation of recycled-aggregate concrete by in-situ tests. Materials and Structures 21 (4) : 289-295. ScholarBank@NUS Repository.
Abstract: Coarse and fine aggregates generated from crushed concrete products for new concrete can be generally accepted only when the properties of recycled aggregate concrete, in addition to the relationships between different properties of such a concrete, are well understood. The results of an experimental investigation into the relationship of compressive strength to ultrasonic pulse velocity and to rebound number is presented in this paper. It has been observed that for the water-cured concrete the strength-pulse velocity relationship is influenced by the use of the recycled aggregate. For the same value of the pulse velocity, the strength of recycled aggregate concrete is higher than that for the natural aggregate concrete. On the other hand, the strength-rebound number relationship is not affected by the aggregate type used. The combined method of pulse velocity and rebound number for strength estimation is also evaluated. © 1988 RILEM.
Source Title: Materials and Structures
ISSN: 00255432
DOI: 10.1007/BF02481828
Appears in Collections:Staff Publications

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