recycled of aggregate concrete abstract

Mechanical Properties of Concrete Using Recycled Plastic

ABSTRACT Concrete is the most common material for human beings to use in construction. In this study, the behavior of the recycled plastic as aggregate in concrete has been investigated on compressive, tensile, and flexural strengths, weight reduction and

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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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THE EFFECTS OF AGGREGATE MOISTURE CONDITIONS ON RHEOLOGICAL

Because the fine particles of recycled-concrete contain impurities and hardened. cement paste, which increased the difficulty of the quality control of the new concrete. While right now research has been conducted to study SCC prepared with fine recycled-

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Use of Recycled Aggregate Concrete - IOSR Journals

ABSTRACT: Use of recycled aggregate in concrete can be useful for environmental protection. Recycled aggregates are the materials for the future. The application of recycled aggregate has been started in a large number of construction projects of many Eur

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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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Recycled Concrete Aggregate – A Viable Aggregate Source

Abstract Virgin aggregate is being used faster than it is being made available creating a foreseeable shortage in the future. Despite this trend, the availability of demolished concrete for use as recycled concrete aggregate (RCA) is increasing. Using thi

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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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Use of Recycled Aggregates in Construction

Recycled Aggregates Recycled Concrete Aggregate (RCA) Crushed sound and clean waste concrete of at least 95% by weight of concrete with typical total contamination lower than 1% of the bulk mass. Class 1A RCA is a well graded RCA with no more than 0.5% br

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Strength and Durability Evaluation of Recycled Aggregate Concrete

May 14, 2015 · Quality and availability of recycled aggregate are the main factors towards stable use and introduction of recycled aggregate concrete to the construction industry. The crushed stone aggregate used in the study was obtained from a recyclin

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Concrete with Glass-Recycled Aggregate

Abstract: Concrete is a material which is widely used in architecture, ... percentage of recycled aggregate has a direct influence on strength and on the final appearance of the obtained material. The higher the ratio of glass grains in the mixture, the mor

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Handbook of Recycled Concrete and Demolition Waste

Abstract: Various studies have shown that recycled aggregate (RA) can be used to make new concrete. However, in the same way as with natural aggregate (NA), RA also needs to be assessed in terms of grain-size distribution, absorption, abrasion, etc., for

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The potency of recycled aggregate in new concrete: a

Recycling of waste concrete is one of the sustainable solutions for the growing waste disposal crisis and depletion of natural aggregate sources. As a result, recycled concrete aggregate (RCA) is produced, and so far it has mostly been used in low-value a

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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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PERFORMANCE OF RECYCLED AGGREGATE CONCRETE

ABSTRACT: Compressive strength is the basic mechanical properties and one of the indicators to determine the performance of a concrete. In this paper, the effects of various percentages (0%, 25%, 50%, 75%, 100%) of Recycled Aggregate (RA) on compressive s

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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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PROPERTIES OF RECYCLED AGGREGATE CONCRETE

recycled aggregate as a component of concrete, there is a limit so that a coarse fraction of recycled aggre- gate whose absorption is not higher than 7%, and fine fractions whose absorption goes up to 13%,

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Performance of concrete with recycled coarse aggregates from

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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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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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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Replacement of recycled coarse aggregates with natural coarse

1. In their study, they use recycled coarse aggregates obtained by crushed concrete for concrete production. 2. Four different recycled aggregate concretes were produced; made with 0%, 25%, 50% and 100% of recycled coarse aggregates, respectively. 3. The

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Design of Normal Strength Concrete Mixtures with Recycled

ABSTRACT This paper investigates the design of normal strength concrete mixtures that use recycled concrete aggregates as replacement for virgin natural aggregates.

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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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ABSTRACT - Shodhganga

So far, most researchers utilized the recycled concrete aggregate (RCA) from C&D waste for producing low-strength concrete. Only a few researchers have utilized RCA for making high-strength concrete. The utilization of recycled aggregate (RA) in high-stre

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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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Recycled Concrete Aggregates: A Review | SpringerLink

Mar 29, 2013 · After demolition of old roads and buildings, the removed concrete is often considered worthless and disposed of as demolition waste. By collecting the used concrete and breaking it up, recycled concrete aggregate (RCA) is created (Fig. 1).

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