Research on recycled aggregate concrete A review

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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The Utilization of Recycled Aggregate in High Performance ...

Jul 01, 2020 · M. Etxeberria, E. Vázquez, A. Marí, M. BarraInfluence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete Cement and concrete research, 37 (5) (2007), pp. 735-742

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Recycled Aggregates in Concrete • Aggregate Research ...

Recycled Aggregates (www.cement.org) — Construction materials are increasingly judged by their ecological characteristics. Concrete recycling gains importance because it protects natural resources and eliminates the need for disposal by using the readily available concrete as an aggregate source for new concrete or pavement sub-base layers.

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Recycled Concrete: The Pros and Cons - Braen Stone

Recycled Concrete Aggregate (RCA) is one of the most commonly used recycled construction materials in NJ and its surrounding areas. The material can be used for a wide range of practical purposes. If you’ve been wondering if recycled concrete could be the right solution for your upcoming project, you likely have questions about the benefits ...

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Critical Review of Recycled Aggregate Concrete Properties ...

Although the properties of recycled aggregate concrete are widely considered to be inferior to those of natural aggregate concrete, research in the field still is of merit due to growing awareness of environmental concerns relating to the concrete construction and demolition industry.

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Behavior of Concrete Utilizing Recycled Aggregate A Review

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. Keywords: Recycled aggregate, concrete utilizing recycled aggregate, construction and demolition waste.

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A STUDY ON RECYCLED CONCRETE AGGREGATES

the recycled aggregate concrete is almost 85% and 80% of natural aggregate concrete. Amn on.et.al (2002), concrete having a 28 -day compressive strength of 28 MPa was crushed at ages 1, 3 and 28 days to serve as a source of aggregate for new concrete,

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A REVIEW ON RECYCLED FINE AGGREGATE CONCRETE

a review on recycled fine aggregate concrete K.S. Prasath 1 , R. Goudhamaram 2 , E. Dinesh 3 1 Assistant Professor, Department of civil Engineering, Sri Manakula Vinayagar Engineering College,

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The potency of recycled aggregate in new concrete: A review ...

Originality/value: This research serves as a guide for future works and suggests that the use of RA as aggregate in new concrete is technically possible, depending on the mix design method adopted. KW - Construction and demolition waste. KW - Mix design. KW - Natural aggregate. KW - Recycled aggregate. KW - Recycled aggregate concrete. KW ...

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Research - Use of Recycled Concrete Aggregate in PCCP ...

Oct 12, 2016 · The use of recycled concrete aggregate (RCA) is recommended based on a review of literature that investigated the properties and characteristics of RCA, the physical properties of fresh and hardened concrete containing RCA, the mechanical behavior of concrete containing RCA, and special considerations for concrete pavements using RCA to achieve suitable levels of workability, durability, and ...

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Review of Research on and Implementation of Recycled Concrete ...

Therefore, it makes economic and environmental sense to use recycled materials in the making of new concrete for different applications. The objectives of this study are to summarize published research on the use of recycled concrete aggregates in new concrete mixes and examine its implementation in construction and industry in the GCC region.

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A Review on Recycled Aggregates for the Construction Industry

Levy Salomon M. and Helene Paulo, “Durability of Recycled Aggregate Concrete: A Safe Way to Sustainable Development” Cement and Concrete Research, 34. 1975-1980.2004. Xiao Jianzhuang, Li Jiabin and Zhang Ch., “Mechanical Properties of Recycled Aggregate Concrete Under Uniaxial Loading” Cement and Concrete Research, 35. 1187-1194.2005.

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Durability of Recycled Aggregate Concrete: A Review

Generally, a coarse aggregate replacement ratio of 20% to 50% did not negatively affect the performance of recycled aggregate concrete in many cases. The literature overview showed that recycled aggregate concrete performs satisfactorily under various conditions and has a comparable durability to natural aggregate concrete if designed properly.

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A Review of the Durability of Recycle Aggregate Concrete ...

[13] F. Jincai, G. Yanrong and X. Qun et al, Main research progress and development trend on carbonation behavior of recycled concrete, Concrete, Number 1 in 2014(No. 291) 41-45(In Chinese). [14] Yan hongsheng, Experimental study on recycled aggregate concrete sulfate at tack, Concrete, Number 5 in 2013(Total No. 283), 13-15(In Chinese).

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THE IMPROVEMENT OF RECYCLED CONCRETE AGGREGATE A REVIEW PAPER

mechanical properties for the recycled aggregate concrete. Meanwhile, the alkalinity of recycled aggregate concrete, chloride and sulphate contents of recycled aggregate have not been adversely affected. In the procedure shown in [12], the coarse recycled concrete aggregates were kept immersed in HCl with a molarity of 0.5 mole for 24 h.

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Recycled aggregate concrete (RAC) – comparative analysis of ...

Based on existing norms and specifications that allow the use of recycled aggregates in the production of concrete, a comparison is made of the parameters involved, such as density, water absorption and contaminants ratio within the recycled aggregates and maximum strength allowed for the recycled aggregate concrete, among others.

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Comparative LCA of concrete with recycled aggregates: a ...

In the present research, the environmental impact of concrete with recycled aggregates and with geopolymer mixtures is analysed. The aim of the present research is to propose a comparative LCA of concrete with recycled aggregates in the context of European politics. Life cycle assessment (LCA) methodology is applied using Simapro© software.

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Suitability Investigation of Recycled Concrete Aggregates for ...

W. Z. Taffese, “Effect of recycled coarse aggregate on concrete properties,” in Proceedings of International Conference of Advances in Cement and Concrete Technology in Africa, pp. 1007–1014, BAM Federal Institute for Materials Research and Testing, Johannesburg, South Africa, January 2013.

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Special Issue "New Trends in Recycled Aggregate Concrete"

In this study, research was conducted on the mechanical and durability characteristics of concrete using recycled aggregate, after developing equipment to improve the quality of recycled aggregate to increase the use of recycled aggregate for environmental improvements.

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Evaluation of Recycled Aggregates Test Section Performance

recycled aggregates in new construction. While the use of recycled concrete aggregate (RCA) in the base course of new pavements is quite common in Minnesota and many other states, it is rarely used in the concrete pavement itself. In fact, Minnesota was one of the few states to build multiple trial projects and has one of the largest

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Using Recycled Concrete Aggregate in New Concrete Pavement ...

Aug 14, 2017 · Using recycled pavement as aggregate in new concrete mixes can save money and promote environmental sustainability. New design methods published in a new research report allow engineers to create more durable mixes from recycled aggregate than in the past, reducing the need for virgin aggregate, a diminishing and expensive resource.

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