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Mix Design and Properties of Recycled Aggregate Concretes

Mix Design and Properties of Recycled Aggregate Concretes

Mix Design and Properties of Recycled Aggregate Concretes ...

Aug 26, 2014  This work is devoted to the study of fresh and hardened properties of concrete containing recycled gravel. Four formulations were studied, the concrete of reference

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Mix Design and Properties of Recycled Aggregate Concretes ...

Mix Design and Properties of Recycled Aggregate Concretes: Applicability of Eurocode 2. George Wardeh*, Elhem Ghorbel, and Hector Gomart. (Received May 23, 2014

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Mix Design and Properties of Recycled Aggregate Concretes ...

Mix Design and Properties of Recycled Aggregate Concretes: Applicability of Eurocode 2 George Wardeh*, Elhem Ghorbel, and Hector Gomart (Received May 23, 2014

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Mix Design and Properties of Recycled Aggregate Concretes ...

Mix Design and Properties of Recycled Aggregate Concretes ...

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Mix Design and Recycled Aggregates Effects on the Concrete ...

Jun 29, 2017  Wardeh G, Ghorbel E, Gomart H (2015) Mix design and properties of recycled aggregate concretes: applicability of Eurocode 2. Int J Concr Struct Mater 9(1):1–20.

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Properties of recycled aggregate concrete designed with ...

Properties of recycled aggregate concrete with EMV mix design3.1. Fresh properties3.1.1. Workability. Fathifazl et al., , who proposed the original EMV mix design method, reported that the EMV mix design method improved the slump of concrete. In the experiment, limestone and river gravel RA were used.

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(PDF) Mix Design for Pervious Recycled Aggregate Concrete ...

International Journal of Concrete Structures and Materials Vol.6, No.4, pp.239–246, December 2012 DOI 10.1007/s40069-012-0024-x ISSN 1976-0485 / eISSN 2234-1315 Mix Design for Pervious Recycled Aggregate Concrete Rasiah Sriravindrarajah1),*, Neo Derek Huai Wang2), and Lai Jian Wen Ervin2) (Received August 29, 2012, Accepted November 6, 2012, Published online November 27, 2012)

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Mix Design and Properties of Recycled Aggregate Concretes: Applicability of Eurocode 2 By Download PDF (2 MB)

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Properties of recycled concrete aggregate under different ...

Materials and mix design Four different concrete mixes were produced: a control con-crete mix and three recycled aggregate concretes with replace-ment ratios of 25%, 50% and 100%. One type of cement was used in this study, Portland cement (OPC). Natural siliceous sand with medium grade of fineness modulus of 2.73 and dolo-

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Mix Design of Recycled Coarse Aggregate Self-Compacting ...

Jul 02, 2021  Based on the orthogonal test design and range analysis method of the fresh and hardened properties of RCASCC, the optimal mix is as follows: water-binder ratio of 0.269, recycled coarse aggregate replacement rate of 30%, fly ash substitution rate

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Some mechanical properties of normal and recycled ...

Some mechanical properties of normal and recycled aggregate concretes K. Akhavan Kazemi, O. Eren and A.R. Rezaei ... The properties of recycled aggregates were also tested according to BS 812-112 [8] methods. Figure 1 ... ne and coarse recycled aggregates. The mix propor-tions of the concrete mixes are shown in Table 3.

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Mechanical Properties Of Recycled Aggregates Concrete ...

2.7 RECYCLED AGGREGATE CONCRETE: A SUSTAINABLE BUILT ENVIRONMENT. In the present study the influence of recycled coarse aggregate (RCA) obtained from three different sources having different ages of structures are on the properties of recycled aggregate concrete (RAC) are investigated. RAC mixes are prepared with each source of RCA separately.

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Materials Special Issue : Recycled Aggregate Concretes ...

For the environment protection and sustainable development in building construction, waste concrete can be processed into recycled aggregate to mix the recycled aggregate concrete (RAC). However, the existing mix design methods of RAC were complex, and the mechanical properties of RAC were more weakened than ordinary concrete.

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A comparative study on the permeability properties of ...

1 天前  Within 240 hour, the maximum effective water absorption of NAC, recycled concrete aggregate concrete (RCAC) and recycled brick aggregate concrete (RBAC)

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Influence of Design Parameters on Fresh Properties of Self ...

Dec 16, 2020  Furthermore, it is necessary to understand the recycled aggregate property’s role in a mixed design and SCC properties. Design parameters are not only influenced by a mix design but also play a key role in SCC’s fresh properties. Hence, in this overview, properties of SCC ingredients, calculation of design parameters in mix design, the ...

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Mix Design Of Recycled Aggregate Concrete

Mix Design and Properties of Recycled Aggregate . 2014-8-26 At fresh state, the mix design of concrete with recycled aggregates requires an additional quantity of water to obtain a similar workability as a concrete formulated with natural aggregates (Hansen and Boegh 1986 ).

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Use of RECYCLED AGGREGATES In CONCRETE- A Paradigm Shift

The fine aggregate used in the concrete, i.e. recycled and conventional is 100 percent natural. The recycled aggregate are collected from four sources all demolished structures. For both types of concrete i.e. M-20 and M-25, w/c ratio, maximum size of aggregate and mix proportion are kept constant.

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Extended application of the Equivalent Mortar Volume mix ...

Also, the EMV mix design provision offers a better result than its companion conventional approach, even with about 30% reduction in cement content. The addition of SF mainly controlled crack development and induced a ductile failure mode. Keywords: Fine recycled aggregates, Steel fibre, Mix design, Equivalent mortar volume, crack development. 1.

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Evaluation of conventional and equivalent mortar volume ...

Feb 13, 2020  The use of recycled aggregate concrete (RAC) is undoubtedly on the increase and further research is required for more appropriate mix design methods. This paper presents the result of investigations into the mix design of RAC. The study examined experimentally two conventional and one unconventional mix design methods. The conventional methods include the absolute volume

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Properties of recycled concrete aggregate under different ...

Materials and mix design Four different concrete mixes were produced: a control con-crete mix and three recycled aggregate concretes with replace-ment ratios of 25%, 50% and 100%. One type of cement was used in this study, Portland cement (OPC). Natural siliceous sand with medium grade of fineness modulus of 2.73 and dolo-

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PERMEABILITY PROPERTIES OF FINE RECYCLED AGGREGATE

taken during the design and production of the mixes. In this paper, the permeability properties of fine recycled aggregate concrete are presented. The FRA used come from demolished concrete of known properties. Mixes with 10%, 30%, 50% and 100% by volume replacement of fine natural aggregates (FNA) with FRA were produced and tested for water

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Study of Properties of Concrete using GGBS and Recycled ...

recycled aggregates as replacement for fine and coarse aggregate. The basic properties of natural and recycled aggregate were determined. The mix design was done to obtain a concrete mix (control mix) of grade M40. Mixes were prepared by replacing 40, 50 and 60% of natural aggregates with recycled aggregates.

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Mix Design Of Recycled Aggregate Concrete

Mix Design and Properties of Recycled Aggregate . 2014-8-26 At fresh state, the mix design of concrete with recycled aggregates requires an additional quantity of water to obtain a similar workability as a concrete formulated with natural aggregates (Hansen and Boegh 1986 ).

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Mix design of recycled aggregate concrete using packing ...

This paper considers mix of two different aggregate sizes of 10 and 20mm, 0, 30, 50, 70 and 100% recycled aggregate replacement ratios, and water-cement ratio of 0.35, 0.45 and 0.55. In total of fifteen concrete mix designs are considered. The paper presents the material properties of aggregates which were obtained from the material testing.

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Materials Special Issue : Recycled Aggregate Concretes ...

For the environment protection and sustainable development in building construction, waste concrete can be processed into recycled aggregate to mix the recycled aggregate concrete (RAC). However, the existing mix design methods of RAC were complex, and the mechanical properties of RAC were more weakened than ordinary concrete.

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Recycled Concrete Aggregates: Its Properties Uses

Jun 27, 2019  Recycled concrete aggregate as such, holds original aggregate with hydrated cement paste. Hence first, that demolished concrete is cleaned from dirt and other loose particles. After that, it is broken into smaller pieces to produce aggregate known as recycled concrete aggregate. Recycled concrete aggregates are available in size of 20mm to 50mm.

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Materials Free Full-Text The Simple Mix Design Method ...

For the environment protection and sustainable development in building construction, waste concrete can be processed into recycled aggregate to mix the recycled aggregate concrete (RAC). However, the existing mix design methods of RAC were complex, and the mechanical properties of RAC were more weakened than ordinary concrete. This paper presents a simple mix design method for RAC,

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A comparative study on the permeability properties of ...

1 天前  Within 240 hour, the maximum effective water absorption of NAC, recycled concrete aggregate concrete (RCAC) and recycled brick aggregate concrete (RBAC)

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(PDF) Rheology of fresh concretes with recycled aggregates ...

Rheology of fresh concretes with recycled aggregates. Download. Rheology of fresh concretes with recycled aggregates. CRISTIAN jimenez. Carlo Pellegrino ... Concurrent effects of recycled aggregates and polypropylene fibers on workability and key strength properties of self-consolidating concrete. By Pierre Matar. Visualizing and simulating ...

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Durability And Performance Characteristics Of Recycled ...

While studies on the engineering properties of concrete madewith laboratory- crushed recycled concrete aggregate abound (Frondistou–Yannas 1980; Hansen Narud 1983), only limited data is available on commercial grade recycled concrete aggregate, including concrete mix proportions, fresh concrete performance and durability characteristics.

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Use of RECYCLED AGGREGATES In CONCRETE- A Paradigm Shift

The fine aggregate used in the concrete, i.e. recycled and conventional is 100 percent natural. The recycled aggregate are collected from four sources all demolished structures. For both types of concrete i.e. M-20 and M-25, w/c ratio, maximum size of aggregate and mix proportion are kept constant.

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Influence of amount of recycled coarse aggregates and ...

concretes were produced; made with 0%, 25%, 50% and 100% of recycled coarse aggregates, respectively. The mix proportions of the four concretes were designed in order to achieve the same compressive strengths.

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Extended application of the Equivalent Mortar Volume mix ...

Also, the EMV mix design provision offers a better result than its companion conventional approach, even with about 30% reduction in cement content. The addition of SF mainly controlled crack development and induced a ductile failure mode. Keywords: Fine recycled aggregates, Steel fibre, Mix design, Equivalent mortar volume, crack development. 1.

get price