recycled of aggregate concrete abstract

Properties of porous concrete from waste crushed concrete

Porous concrete Recycled aggregate Permeability Compressive strength Flexural strength Polymer–cement ratio Total void ratio abstract The purpose of this study was to develop porous concrete with acceptable permeability and strength using recycled aggrega

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recycled of aggregate concrete abstract

recycled aggregate concrete (RAC) at national and international levels, respectively. Gonçalves and de Brito (2010) made an extensive survey of the codes that allow the use of RA in concrete. These studies support the possibilities of applying RCA in the

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Recycled Aggregate Concrete - SlideShare

Nov 15, 2014 · Recycled Aggregate Concrete. It is called recycled aggregate which can be produced by concrete crusher.  The aggregates are categorized by size as coarse and fine aggregate.  The characteristic of recycled aggregates could be different

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Effects of Recycled Aggregates on Water-Cement Ratio for

Recycled aggregate differs from primary aggregate in that it constitutes of two types of materials: the primary aggregate and the attaching cement mortar. This study was conducted in order to investigate the effects on water-cement ratio for concrete cast

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Strength and Durability Evaluation of Recycled Aggregate

2015/5/14 · Abstract This paper discusses the suitability of producing concrete with 100 % recycled aggregate to meet durability and strength requirements for different applications. Aggregate strength, gradation, absorption, specific gravity, shape and t

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Strength and ductility improvement of recycled aggregate

abstract = "In literature, studies on recycled aggregate concrete (RAC) with recycled aggregates (RAs) originated from clay brick waste are rare, which is mainly attributed to the much lower compressive strength of the RAC with recycled clay brick aggrega

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Crushed Concrete Aggregates - Properties and Uses of

Shear strength of recycled aggregate concrete is lesser than of normal concrete. This is because the recycled aggregate from field-demolished concrete for example can be relatively weaker than a typical natural aggregate. In general, there is a 10% decrea

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Research on Self-Compacting Concrete Made with Recycled

Abstract: It is studied the effect of binder quantity, water binder ratio on properties of self-compacting concrete made with recycled coarse aggregates. It can be prepared C50 self-compacting concrete made with recycled coarse aggregate by adjusting send

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Recycled Aggregates

According to a 2004 FHWA study, 38 states recycle concrete as an aggregate base; 11 recycle it into new portland cement concrete. The states that do use recycled concrete aggregate (RCA) in new concrete report that concrete with RCA performs equal to conc

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(PDF) Recycled aggregates concrete: Aggregate and mix properties

Abstract This study of structural concrete made with recycled concrete aggregate focuses on two issues: 1. The characterization of such aggregate on the Spanish market. This involved conducting...

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Drying shrinkage of concrete made from recycled concrete

Drying shrinkage of concrete made from recycled concrete aggregate B.A. Whiting, T.J. McCarthy & E. Lume School of Civil, Mining and Environmental Engineering, Faculty of Engineering, University of Wollongong, Wollongong, NSW, Australia ABSTRACT: Recycled

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STUDY REPORT - BRANZ

2.1.2 Stage 2: Recycled concrete mixes The coarse aggregate obtained from crushing the control mix concrete was used to make three different mixes. The first, RC230, had an identical mix design to RA230 given above, except that the mass of the aggregates

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Evaluation of Recycled Concrete for Use as Aggregate in New

ABSTRACT This study evaluated the use of recycled concrete as coarse aggregate in new concrete pavements. Recycled concrete aggregate (RCA) produced from demolished pavements in three geographically- dispersed locations in Washington state were used to pe

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RECYCLED CONCRETE AGGREGATE - - DURABILITY ASPECTS

Key words: concrete, recycling, durability, frost, deterioration Abstract: Since the mid-90s the recycling, reuse and reduction of construction and demolition waste (C&D-waste) have received increasing attention in Norway. The main focus of the Norwegian

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Recycling and reuse of reclaimed portland cement concrete

Recycled Aggregate Concrete. (6) 21 Table 3.1. Crushed Concrete Recycled Aggregate Physical and Mechanical Properties 27 Table 3.2. Sieve Analysis ofthe Crushed Concrete Recycled Aggregate 28 Table 3.3. Gradation of Coarse Aggregate for Different Maximum

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Durability Aspects of Recycled Aggregate Concrete: An

This paper examines the performance of recycled aggregate concrete made up of 60% recycled aggregates of 20 mm size in terms of durability tests namely rapid chloride permeability, drying shrinkage, water permeability, modulus of elasticity and creep with

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ABSTRACT - concrete.org

ABSTRACT The project deals with studying the fresh and hardened properties of self-compacting concrete (SCC), using two types of fine materials (silica fume and limestone powder as 10% each by weight of cement. Also, the uses of crushed bricks aggregate …

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Review of Research on and Implementation of Recycled

Therefore, there is a good potential for using recycled concrete aggregate as a subbase layer in roadway pavement construction. Another application of the use of recycled concrete aggregate is in the production of sand lime brick in Kuwait, which was cons

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Recycled aggregate concrete: Experimental shear resistance

The latter was used as a reference concrete. In order to determine the shear resistance, slabs were loaded until shear failure occurred in a four-point-bending test. The slabs made of recycled aggregate concrete showed similar crack distributions as the s

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Recycled aggregate concrete as structural material

Abstract. The use of recycled aggregates in concrete opens a whole new range of possibilities in the reuse of materials in the building industry. The utilisation of recycled aggregates is a good solution to the problem of an excess of waste material, prov

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Evaluation of Recycled Concrete for Use as Aggregate in

This study evaluated the use of recycled concrete as coarse aggregate in new concrete pavements. Recycled concrete aggregate (RCA) produced from demolished pavements in three geographically-dispersed locations in Washington state were used to perform test

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Recycled Concrete—A Source for New Aggregate - ASTM

Results show that for a W/C ratio of 0.35 the recycled aggregate concrete has 30% lower strength than conventional concrete. The strength differential narrowed for increasing values of W/C ratio until the strengths were about equal for a W/C ratio of 0.55

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Sustainable Construction: Use of Recycled Concrete Aggregate

Sustainable Construction: Use of Recycled Concrete Aggregate: Proceedings of the International Symposium organised by the Concrete Technology Unit, University of Dundee and held at the Department of Trade and Industry Conference Centre, London, UK on 11 –

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Aggregates from Natural and Recycled Sources

ABSTRACT Increased amounts of recycled materials are being used to supplement natural aggregates (derived from crushed stone, sand and gravel) in road construction.

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Recycled Concrete as Aggregate for Structural Concrete

Recycled concrete aggregate (RCA) is generally produced by two-stage crushing of demolished concrete, and screening and removal of contaminants such as reinforcement, paper, wood, plastics and gypsum. Concrete made with such recycled concrete aggregate is

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Crushed Concrete Aggregates - Properties and Uses of Recycled

Crushed concrete aggregates also called as recycled concrete aggregates are fragments and pieces of concrete buildings which are demolished or rebuild. These crushed concrete are cleaned from dirt and broken to smaller pieces to manufacture aggregate whic

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Recycled aggregate from C&D waste & its use in concrete – A

Oct 15, 2014 · Read "Recycled aggregate from C&D waste & its use in concrete – A breakthrough towards sustainability in construction sector: A review, Construction and Building Materials" on DeepDyve, the largest online rental service for scholarly resea

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(PDF) Recycled aggregates concrete: Aggregate and mix

This work studies the physical and mechanical properties of recycled concrete aggregate (recycled aggregate from concrete waste) and their influence in structural recycled concrete compressive strength. For said purpose, a database has been developed with

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(PDF) Durability of recycled aggregate concrete | Miquel

A lot of research has already been done on the mechanical properties of recycled aggregate concrete. This led to some changes in the standard for various applications. These authorized application remain quite low risk (Indoor, no frost, …).

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Effect of Recycled Coarse Aggregate on Concrete Properties

Moreover, the discussion about recycled aggregate usually correlate with recycled coarse aggregate. Coarse recycled concrete aggregate (RCA) is produced by crushing the demolition waste of at least 95% by weight of concrete, and having a total contaminant

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