The use of recycled demolition aggregate in precast concrete products – Phase III: Concrete pavement flags

Soutsos, Marios; Tang, Kangkang; Millard, S.G.

doi:10.1016/j.conbuildmat.2012.06.045

Cited by 34 publications

(20 citation statements)

References 4 publications

(8 reference statements)

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“…It is reported [32,57,58] that the addition of ISF (up to a certain content e.g. 3% by mass) can increase the compressive strength of concrete in the range of 6-25%, though strength reductions were reported by others [60][61].…”

Section: Effect Of Rtsf On Strength Of Racmentioning

confidence: 94%

Strength prediction model and methods for improving recycled aggregate concrete

Younis

Pilakoutas

2013

Construction and Building Materials

171

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Section: Effect Of Rtsf On Strength Of Racmentioning

confidence: 94%

Strength prediction model and methods for improving recycled aggregate concrete

Younis

Pilakoutas

2013

Construction and Building Materials

171

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“…Initial trials conducted in Ireland have also successfully used recycled aggregate in concrete blocks. However, as with concrete, contamination in recycled aggregate derived from masonry affects strength development (Soutsos et al, 2011a;Soutsos, Tang, & Millard, 2011b;Soutsos, Tang, & Millard, 2012).…”

Section: Alternative Usesmentioning

confidence: 99%

Increasing the Potential for Reuse and Recycling of Construction and Demolition Waste - A Case Study From Ireland

Byrne¹,

Regan²

2014

ENRR

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Ireland reports high levels of construction and demolition waste (C&DW) recycling, yet has conducted little research into the use of recycled aggregates. This study examines whether recycled aggregate can offer a viable alternative to the use of natural aggregate in concrete production.The options available for the use of C&DW in Ireland are investigated together with the effect of recycled aggregate on concrete properties. The environmental impact of extracting and processing natural aggregates is compared to that of recycling aggregate, as are the cost and relative difficulties of reprocessing C&DW for re-use.There is little incentive for the use of recycled aggregate in Ireland. It is not without environmental impact and the long-term durability effects on concrete are still relatively unknown. The material can provide a cost effective alternative to natural aggregate. Recycled aggregate is highly suitable for use in pre-cast concrete products where problems associated with ready-mixed concrete use are not an issue. Retained cementitious properties of the material can also be used to good effect in road construction. Designing concrete with end of life and reuse potential in mind may further increase acceptance of the material.Recycled aggregate use in Ireland lags behind many other European countries, further difficulties may be experienced in gaining acceptance for a largely untested material in light of the recent pyrite controversy. This study may open the way for future research into greater use and the way in which policy could be utilised to fund such research and promote adoption of the material.

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“…Brought to you by | MIT Libraries Authenticated Download Date | 5/9/18 6:28 AM 12 fine fractions with RCA [6]. Borax and fly ash can be added as effective retarders to concrete pavements but with limited extension for the time of setting, whereas a big amount of aluminate cement can significantly delay the time of setting, and it also reduces strength [7], but fly ash significantly increases the workability of the concrete [8].…”

Section: Introductionmentioning

confidence: 99%

“…The scientists [5][6][7][8] studied how the strength of concrete used to manufacture the elements for the improvement of surroundings changes by adding some fly ash and other waste to their composition. Compressive strength decreases when increasing fly ash replacement ratio for each series.…”

Section: Introductionmentioning

confidence: 99%

The Dependence of Physical Mechanical Properties of Concrete Pavement Blocks on Coarse Aggregate Type

Malaiškienė¹,

Šemelis²,

Girskas³

et al. 2014

Construction Science

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-The aim of this research is to determine the dependences of the physical mechanical properties of vibropressed concrete (pavement blocks) on the type of coarse aggregate used in the main layer. Sustainability of concrete pavement blocks is a really important matter. Five different batches of pavement blocks were produced, changing the consistence ratio of coarse aggregate in the main layer. There are two types of course aggregate: crushed gravel and granite. The consistence of a facing layer was not changed. All tests: density, tensile split strength, water absorption for vibro-pressed concrete units were made according to EN 1338:2003+AC2006.

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The use of recycled demolition aggregate in precast concrete products – Phase III: Concrete pavement flags

Cited by 34 publications

References 4 publications

Strength prediction model and methods for improving recycled aggregate concrete

Strength prediction model and methods for improving recycled aggregate concrete

Increasing the Potential for Reuse and Recycling of Construction and Demolition Waste - A Case Study From Ireland

The Dependence of Physical Mechanical Properties of Concrete Pavement Blocks on Coarse Aggregate Type

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