Use of recycled concrete aggregate in high-strength concrete

Limbachiya, Mukesh; Leelawat, T.; Dhir, Ravindra K.

doi:10.1007/bf02480538

Cited by 544 publications

(262 citation statements)

References 8 publications

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“…It is revealed that AIV obtained for RA is higher compared to NA therefore indicating higher strength of NA compared to RA and the results for present study is in agreement with other researchers (Ridzuan et al, 2001 andLimbachiya et al, 2000). According to BS 882:1992, the maximum value of AIV of aggregate for application of heavy-duty floors is 25%, 30% for wearing surfaces and 45% for other concretes used.…”

Section: Aggregate Impact Valuesupporting

confidence: 91%

Study on Concrete Containing Recycled Aggregates Immersed in Epoxy Resin

2016

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Abstract. In recent decades, engineers have sought a more sustainable method to dispose of concrete construction and demolition waste. One solution is to crush this waste concrete into a usable gradation for new concrete mixes. This not only reduces the amount of waste entering landfills but also alleviates the burden on existing sources of quality natural concrete aggregates. There are too many kinds of waste but here constructions waste will be the priority target that should be solved .It could be managed by several ways such as recycling and reusing the concrete components, and the best choice of these components is the aggregate, because of the ease process of recycle it. In addition, recycled aggregates and normal aggregates were immersed in epoxy resin and put in concrete mixtures with 0%, 5%, 10% and 20% which affected the concrete mixtures properties. The strength of the concrete for both normal and recycled aggregates has increased after immersed the aggregates in epoxy resin. The percentage of water absorption and the coefficient of water permeability decreased with the increasing of the normal and the recycled aggregates immersed in epoxy resin. Generally the tests which have been conducted to the concrete mixtures have a significant results after using the epoxy resin with both normal and recycled aggregates.

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Section: Aggregate Impact Valuesupporting

confidence: 91%

Study on Concrete Containing Recycled Aggregates Immersed in Epoxy Resin

2016

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“…As on crusher the practical size can't be uniformly maintained, so they are poorly graded [21]. Recycled aggregate are round in size which also decreases the properties of concrete utilizing recycled aggregate, as due to round size the bonding between concrete become loose and sometime its noticed in microstructure that crack is produced between aggregate and old mortar which segregate the aggregate with rest of concrete and leads to decrease in strength such as crushing strength, impact resistance and abrasion resistance when compared to natural aggregate [13,26].…”

Section: Properties Of Recycled Aggregatementioning

confidence: 99%

Behavior of Concrete Utilizing Recycled Aggregate – A Review

Shrimali¹,

Chauhan²,

Gupta³

et al. 2017

IJERA

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Today's modern era is demanding more and more infrastructure development and with the increasing demand of infrastructure, the demand and supply chain of the construction material are getting affected. With increasing pace of development, a great concern is required towards environment as well as natural resources. In this paper, behavior of concrete utilizing recycled aggregate is critically reviewed. Properties of recycled aggregate are discussed at first, followed by the properties of concrete utilizing recycled aggregate. It has been reported that recycled aggregate was found useful if the replacement level is about 30% .This type of concrete has been used in many applications. Recycled aggregate can be seen as future material which will be eco -friendly and will decrease in project cost.

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“…Similar observation was made by the study conducted by Limbachiya et. al., [9] by reporting lower compressive strength with the use of RCA beyond a replacement of 30%. Studies by some of the other researchers [10,11,12] indicate higher absorption, lower compressive strength and difficulty in characterization of recycled aggregates.…”

Section: Influence Of Powder and Paste On Scc Usingmentioning

confidence: 99%