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journals on recycled aggregate concrete

Use of Recycled Aggregate Concrete IOSR Journals

properties of recycled fine aggregate and recycled coarse aggregate & also compares these properties with natural aggregates. Basic changes in all aggregate properties are determined and their effects on concreting work are discussed at length. Similarly the properties of recycled aggregate concrete are also determined. Basic

Use of recycled concrete aggregate in concrete: a review

06/09/2013· AbstractThe 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. 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

Cited by: 26

Recycled Concrete Aggregates: A Review | SpringerLink

29/03/2013· 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).This paper focuses on coarse RCA which is the coarse aggregate from the original concrete that is created after the mortar is separated from the

Cited by: 154

Review Article ASSESSMENT OF RECYCLED AGGREGATE CONCRETE

recycled fine aggregate and recycled coarse aggregate. It also compares these properties with natural aggregates. Basic changes in all aggregate properties were determined and their effects on concreting work were discussed at length. Similarly the properties of recycled aggregate concrete were also determined and explained here.

Use of RECYCLED AGGREGATES In CONCRETE- A Paradigm

The extensive research on recycled concrete aggregate and recycled aggregate concrete (RAC) as started from year 1945 in various part of the world after second world war, but in a fragmented manner. First effort has been made by Nixon in 1977 who complied all the work on recycled aggregate carried out between 1945-1977 and prepared a state-of

Strength and Durability Evaluation of Recycled Aggregate

14/05/2015· The main objectives of the experimental program were to (i) investigate variability of recycled aggregate properties and their impact on concrete production and (ii) evaluate properties of concrete prepared with 100 % recycled aggregate. Therefore, the experimental program was divided into two phases; Phase 1 deals with evaluation of the aggregate properties and Phase 2 focuses on

Cited by: 72

The potency of recycled aggregate in new concrete: A

Purpose: This paper aims to review the effect of using recycled aggregates (RA) on the properties of recycled aggregate concrete (RAC) following the steady rise in global demand for concrete and the large generation of construction and demolition waste.

Author: Emmanuel Ejiofor Anike, Messaoud Saidani, Eshmaiel Ganjian, Mark Tyrer, Adegoke Omotayo Olubanwo

International Journal of Engineering Trends and Technology

recycled aggregate to 80% recycled aggregate and with more percentage replacement of recycled aggregate used in the concrete specimen, the percentage of tensile strength remained are gradually decreasing. 3. Concrete made with recycled aggregate produced from construction and demolition waste has a compressive strength

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

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

Experimental Study of Compressive Strength of Recycled

Experimental Study of Compressive Strength of Recycled Aggregate Concrete written by Yati R. Tank, Jigar P. Parmar, Darpan H. Gadhiya published on 2014/04/25 download full article with reference data and citations

Effects of Recycled Aggregate on Concrete Mix and

The unit weight of the concrete ranged from 2365 to 2175 kg/m 3, depending on aggregate content (Figure 6).Increasing the recycled aggregate content reduces the unit weight and density of the concrete, resulting in lighter concrete (Figure 6).The unit weights of the 15%, 20%, and 25% mixes were reduced by 8%, 11%, and 11.5%, respectively, compared to plain concrete.

Sustainable design of pervious concrete using waste glass

10/10/2019· 1.2. Recycled concrete aggregate and waste glass. In Hong Kong, about 66,000 tonnes/day of construction & demolition (C&D) wastes (including waste concrete) were disposed of at public fills and landfills according to the statistics of the Environmental and Protection Department (EPD) in 2016 ().The large amount of C&D wastes poses challenges to the construction waste handling

Mix Design and Properties of Recycled Aggregate

26/08/2014· 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). Such a modification may obviously affect the mechanical characteristics of recycled aggregates concrete.

Strengths of Recycled Aggregate Concrete Made Using

The final conclusion is that through proper measures high-quality concrete materials can be produced using recycled concrete aggregate. For this purpose, it is needed to determine the properties of the original concrete, based on which realistic qualities can be targeted for recycled aggregate concrete.

Properties of recycled concrete aggregate under

The coarse recycled concrete aggregate was obtained by crushing a laboratory produced primary concrete at age of 28 days. About 250 cubes of dimension 15 ∗ 15 ∗ 15 cm were crushed to produce the recycled coarse aggregates using mix design No.1 ().After crushing of these cubes, the maximum nominal size of recycled coarse aggregate used in mixes 2, 3 and 4 was 25 mm.

Concrete recycling Wikipedia

In general, the reuse and recycle of construction waste is concentrated in the preparation of recycled aggregate for concrete. By adding a portion of recycled aggregate instead of natural aggregate coarse into the mixture, producing the recycled concrete, which can conserve energy and materials for concrete production.

Structural Concrete Prepared with Coarse Recycled

An investigation of mechanical behaviour and elastic properties of recycled aggregate concrete (RAC) is presented. RACs were prepared by using a coarse aggregate fraction made of recycled concrete coming from a recycling plant in which rubble from concrete structure demolition is collected and suitably treated. Several concrete mixtures were prepared by using either the only virgin aggregates

Strengths of Recycled Aggregate Concrete Made Using

The final conclusion is that through proper measures high-quality concrete materials can be produced using recycled concrete aggregate. For this purpose, it is needed to determine the properties of the original concrete, based on which realistic qualities can be targeted for recycled aggregate concrete.

Effects of Recycled Aggregate on Concrete Mix and

The unit weight of the concrete ranged from 2365 to 2175 kg/m 3, depending on aggregate content (Figure 6).Increasing the recycled aggregate content reduces the unit weight and density of the concrete, resulting in lighter concrete (Figure 6).The unit weights of the 15%, 20%, and 25% mixes were reduced by 8%, 11%, and 11.5%, respectively, compared to plain concrete.

A Study of Concrete Made with Fine and Coarse

This paper deals with the possibility of using fresh concrete waste as recycled aggregates in concrete. An experimental program based on two variables (proportion of fine aggregates replacement and proportion of coarse aggregates replacement) was implemented. The proportions of replacement were 0%, 50%, and 100% by mass of aggregates.

Strength and Durability Evaluation of Recycled

14/05/2015· 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 texture are some of the physical and mechanical characteristics that contribute to the strength and durability of concrete.

(PDF) USE OF RECYCLED CONCRETE AGGREGATES IN

The investigation herein focuses on studying the possibility of using recycled concrete aggregates in structural concrete. The study aims in investigating the uniaxial compressive, tensile and

Experimental Study of the Geopolymeric Recycled

09/09/2016· The mechanical study shows that the reduction rates of the compressive strength, Young’s modulus, and the Poisson’s ratio of the geopolymeric recycled aggregate concrete (GRAC) specimens increase with the increase of the water/cement (w/c) ratio. The Young’s modulus is much more vulnerable to the increase of the w/c ratio than the

Effect of Recycled Coarse Aggregate on Concrete

Abstract. This research was conducted with the use of recycled aggregate as modification. In terms of the use of recycled aggregate, the percentage of recycled aggregate should be determined because the strength of concrete would not be obtained by the high percentage of recycled aggregate.The scope of study is about comparison between recycle coarse aggregate and natural aggregate in

New Trends in Eco-efficient and Recycled Concrete 1st

Sections cover various recycled materials applied in concrete production, present the latest on the lifecycle analysis of recycled aggregate concrete, detail new trends in recycled aggregate concrete research, and finally, present updates on upscaling the use of recycled aggregate concrete and structural reliability.

Construction Industry Waste UGC Approved Journal

Recycled Aggregate, Recycled Aggregate Concrete. I. Introduction Any construction activity requires several materials such as concrete, steel, brick, stone, glass, clay, mud, wood, and so on. However, the cement concrete remains the main construction material used in construction industries. For its suitability and adaptability with respect to

Seismic Performance of Interior and Exterior Beam–Column

03/03/2019· Therefore, numerous experimental studies have been carried out on beam–column joints made with natural aggregate concrete (NAC). However, only a few experimental tests have been conducted on recycled aggregate concrete (RAC) beam–column joints. This paper presents an experimental investigation of the seismic behavior of various types of RAC

journals on recycled aggregate concrete

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