Use of recycled concrete aggregate in high-strength concrete

M. C. Limbachiya; T. Leelawat; R. K. Dhir

doi:10.1007/bf02480538

Use of recycled concrete aggregate in high-strength concrete

M. C. Limbachiya
, T. Leelawat
, R. K. Dhir

University of Dundee

Research output: Contribution to journal › Article › peer-review

658 Citations (Scopus)

Abstract

The results of a test programme to study the use of recycled concrete aggregate (RCA) in high-strength, 50 N/mm² or greater, concrete are described. The effects of coarse RCA content on the ceiling strength, bulk engineering and durability properties of such concretes have been established. The results showed that up to 30% coarse RCA had no effect on concrete strength, but thereafter there was a gradual reduction as the RCA content increased. A method of accommodating the effects of high RCA content, involving simple adjustment to water/cement ratio of the mix is given. It is shown that high-strength RCA concrete will have equivalent engineering and durability performance to concrete made with natural aggregates, for corresponding 28-day design strengths. The practical implications of the study for concrete construction are discussed.

Original language	English
Pages (from-to)	574-580
Number of pages	7
Journal	Materials and Structures/Materiaux et Constructions
Volume	33
Issue number	9
DOIs	https://doi.org/10.1007/bf02480538
Publication status	Published - Nov 2000
Externally published	Yes

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10.1007/bf02480538

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title = "Use of recycled concrete aggregate in high-strength concrete",

abstract = "The results of a test programme to study the use of recycled concrete aggregate (RCA) in high-strength, 50 N/mm2 or greater, concrete are described. The effects of coarse RCA content on the ceiling strength, bulk engineering and durability properties of such concretes have been established. The results showed that up to 30\% coarse RCA had no effect on concrete strength, but thereafter there was a gradual reduction as the RCA content increased. A method of accommodating the effects of high RCA content, involving simple adjustment to water/cement ratio of the mix is given. It is shown that high-strength RCA concrete will have equivalent engineering and durability performance to concrete made with natural aggregates, for corresponding 28-day design strengths. The practical implications of the study for concrete construction are discussed.",

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AU - Limbachiya, M. C.

AU - Leelawat, T.

AU - Dhir, R. K.

PY - 2000/11

Y1 - 2000/11

N2 - The results of a test programme to study the use of recycled concrete aggregate (RCA) in high-strength, 50 N/mm2 or greater, concrete are described. The effects of coarse RCA content on the ceiling strength, bulk engineering and durability properties of such concretes have been established. The results showed that up to 30% coarse RCA had no effect on concrete strength, but thereafter there was a gradual reduction as the RCA content increased. A method of accommodating the effects of high RCA content, involving simple adjustment to water/cement ratio of the mix is given. It is shown that high-strength RCA concrete will have equivalent engineering and durability performance to concrete made with natural aggregates, for corresponding 28-day design strengths. The practical implications of the study for concrete construction are discussed.

AB - The results of a test programme to study the use of recycled concrete aggregate (RCA) in high-strength, 50 N/mm2 or greater, concrete are described. The effects of coarse RCA content on the ceiling strength, bulk engineering and durability properties of such concretes have been established. The results showed that up to 30% coarse RCA had no effect on concrete strength, but thereafter there was a gradual reduction as the RCA content increased. A method of accommodating the effects of high RCA content, involving simple adjustment to water/cement ratio of the mix is given. It is shown that high-strength RCA concrete will have equivalent engineering and durability performance to concrete made with natural aggregates, for corresponding 28-day design strengths. The practical implications of the study for concrete construction are discussed.

UR - https://www.scopus.com/pages/publications/0034317415

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DO - 10.1007/bf02480538

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EP - 580

JO - Materials and Structures/Materiaux et Constructions

JF - Materials and Structures/Materiaux et Constructions

IS - 9

ER -

Use of recycled concrete aggregate in high-strength concrete

Abstract

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