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Research on recycled aggregate concrete A review

(PDF) Use of recycled concrete aggregate in concrete: A review

In addition, the use of RCA leads to a possible solution to the environmental problem caused by concrete waste and reduces the negative environmental impact of the aggregate extraction from natural...

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A review of recycled aggregate in concrete applications (2000 ...

May 30, 2018 · One of the earliest uses of recycled aggregate concrete was in Europe after World War II, however, in the last few years, it has appeared that the perception and tendency to use recycled aggregate in concrete is increasing worldwide, thereby reducing the environmental impact due to landfills and quarrying of virgin aggregate and also making the construction projects economical and environmentally sustainable.

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Recycled Concrete Aggregates: A Review - Find and share research

In this study, recycled aggregate concrete (RAC) with a 0%, 30%, and 50% recycled coarse aggregate substitution rate and a 0% and 15% recycled fine aggregate replacement rate was used as the ...

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Use of recycled concrete aggregate in concrete: a review: Journal of ...

What is recycled concrete aggregate?

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(PDF) Recycled concrete: a review - Find and share research

Aug 18, 2015 · Nevertheless, the elaboration of recycled concrete faces the search for optimal designs in order to achieve the highest mechanical performance under static and dynamic requests. This work reviews...

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Durability of recycled aggregate concrete – A review ...

May 01, 2018 · Although the researches on recycled aggregate concrete (RAC) has been going on for nearly 70 years , the use of RA in concrete structures is still limited due to its long-term durability concerns. With the decrease of natural aggregate resources and the increase of waste concrete generation, RAC has become a hot research topic around the world.

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Recycled Concrete Aggregates: A Review | SpringerLink

Mar 29, 2013 · The review study yielded the following findings in regards to concrete material properties: (1) replacing NA in concrete with RCA decreases the compressive strength, but yields comparable splitting tensile strength; (2) the modulus of rupture for RCA concrete was slightly less than that of conventional concrete, likely due to the weakened the interfacial transition zone from residual mortar; and (3) the modulus of elasticity is also lower than expected, caused by the more ductile

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Review Article ASSESSMENT OF RECYCLED AGGREGATE CONCRETE

The results of research studies show that when recycled aggregates obtained from crushed concrete are used to replace up to 20% by weight of the coarse natural aggregate in concrete, little effect on the properties of concrete is noticed.

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Use of recycled concrete aggregate in concrete: a review ...

The use of recycled concrete aggregate (RCA) in concrete as partial and full replacements of natural coarse aggregate is growing interest in the construction industry, as it reduces the demand for virgin aggregate.

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Recycled Concrete Aggregate - an overview | ScienceDirect Topics

Recycled concrete aggregate (RCA) is the designation used in BS 8500-2 for recycled aggregate principally comprising crushed concrete. Designations of recycled aggregate other than RCA are of lower quality and may contain significant quantities of masonry which would preclude or limit their use in structural concrete.

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A Review Paper on use of Recycled Aggregates in Concrete

Recycled Aggregate Concrete Containing Silica Fume as Partial Replacement for Cement”, Volume 4,Issue 2, pp. 239-245, 2018 International Journal of Engineering Research & Technology (IJERT)

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Recycled concrete as an aggregate for concrete—a review ...

The present state of knowledge on the use of recycled concrete as an aggregate in new concrete is reviewed and suggestions made as to what further work is necessary before a proper assessment of the material can be made. Where crushed uncontaminated concrete is used the properties of the material as an aggregate and the basic engineering characteristics of the concrete made with it are well ...

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A Review Paper on use of Recycled Aggregates in Concrete – IJERT

Recycled Aggregate Concrete (RAC) is concrete that using Recycled Aggregate (RA) as partially or fully replacement in coarse and fine aggregate. It is believed RA have been used from 1945 in concrete producing and started when World War II damaged a large quantity of concrete structures and the high demand of aggregate to rebuild the structures.

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Utilising CO2 technologies for recycled aggregate concrete: A ...

Jul 30, 2020 · 2.3. Other CO 2 technologies. Whilst the injection of CO 2 into recycled aggregate and concrete blocks represent a great portion of the sequestration research, individual researchers have implemented their own distinct methodologies.

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Concrete with fine recycled aggregates: a review: European ...

This paper presents a review of the literature published so far on the use of fine aggregates from construction demolition waste used as a partial or total replacement of fine natural aggregates in concrete production. The review presents the initial works on this subject and an overview of the existing regulations.

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