aggregates affects the workability and the hardened properties of the concrete. The present study is replacing the concrete aggregate with recycled aggregate in different proportion. Keywords: Recycled aggregate, workability, concrete aggregate I. INTRODUCTION Concrete structures are designed in a proper manner so to have a long life.
2013/09/06 · 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 production of concrete using recycled aggregates. The research implicated that the possibility of utilising waste material in the production of concrete offers a compelling alternative to waste disposal and the preservation of natural resources. However, legislation that hinders the use of recycled aggregate in Finland should
In the past few decades, many researches have been carried out on the use of recycled aggregate (RA) derived from construction and demolition wastes to produce concrete products. This paper reviews the previous findings on the effects of use of RA on durability of concrete.
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 ...
The paper reviews the production and utilisation of recycled aggregate in concrete. • Critically analysed the globally published data on recycled aggregate standards. • This review may help to alleviate the concerns of consumers. • This paper can encourage and further promote the use of recycled aggregate.
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.
2.6 Recycled Concrete as Aggregate for Structural Concrete Production. A comparative analysis of the experimental results of the properties of fresh and hardened concrete with different replacement ratios of natural with recycled coarse aggregate is presented in the paper.
CA20) and recycled aggregate from 15 year old concrete building. MasterGlenium SKY 8233 was used as . International Journal of Engineering Research & Technology (IJERT) IJERTIJERT ISSN: 2278-0181 IJERTV3IS090092 www.ijert.org (This work is licensed under a Creative Commons Attribution 4.0 International License.) Vol. 3 Issue 9, September- 2014
improvement the properties of recycled concrete aggregate. This paper reviews the published improvement methods for recycled concrete aggregate, and points out their advantages and disadvantages so as to facilitate the selection and further development of suitable enhancement methods for recycled concrete aggregate.
strength of recycled-aggregate concrete was found showing that 15% lower elastic modulus is achieved by using 30% recycled aggregates. Finally, on the basis of the results obtained it seems that, particularly if finer coarse recycled-concrete aggregate is used,
This paper reviews the research, applications and specifications of the use of recycled aggregates derived from C&D wastes in concrete. The review covers using recycled aggregates on the properties of the resulting concrete and summarizes RILEM and UK specifications governing the use of recycled aggregate in concrete.
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.
Recycled aggregate occurs as either recycled concrete aggregate (RCA) or recycled asphalt pavement (RAP). Recycling concrete and asphalt has been taking place in the USA since at least the early 1970s (Nanasy 1972), and by the 1990s was a well-established activity.
Nevertheless, the compressive strength of recycled aggregate concrete can achieve the target compressive strength by choosing a correct replacement ratio of recycled aggregate. Recycled aggregate could be used to make recycled aggregate concrete for pavement if its technical specification conforms to the requirements of the standard of cement ...
©2006- 20 19 Asian Research Publishing Network (ARPN). All rights reserv ed. www.arpnjournals.com 124 A STATE OF THE ART REVIEW ON RECYCLED AGGREGATE CONCRETE Adel A. Al-Azzawi and Mustafa S. Shalal ...
complete replacement of natural aggregates with recycled concrete aggregate ran ges from 11% to 33%. RCA can replace NA in the production of both non -structural and structural concrete. Patil.et.al. (2013), this study aimed to evaluate physical properties of concrete using recycled coarse aggregate. In this research, concrete waste fr om
This paper presents a review of the studies on chloride penetration of recycled aggregate concrete in terms of its main factors. These factors include quality and replacement ratio of recycled concrete aggregate, mineral admixtures, water-binder ratio, type and level of load and curing mechanisms.
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 called recycled aggregate concrete (RAC). The main purpose of this work is to determine
 Shui Zhonghe, Pan Zhisheng, Zhu Wenqi et al. The micro structural features of the recycled aggregate concrete [J]. Journal of Wuhan University of Technology，2003，25(12)：99-102.  Katz A. Properties of concrete made with recycled aggregate from partially hydrated old concrete[J].
Quality Improvement Techniques for Recycled Concrete Aggregate: A review Wafaa Mohamed Shaban1, Jian Yang2*, Haolin Su3, Kim Hung Mo4, Lijuan Li5 and Jianhe Xie6 Received 26 December 2018, accepted 10 April 2019 2 ...
2.3 Recycled fine aggregate 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 which is termed as recycled aggregate.
Oct 07, 2019 · 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.,This study reviewed relevant literature of research work carried out by previous researchers, leading to a deeper understanding of the properties of ...
This paper provides a systematic review of 119 publications, selected from 235, published over a period of 36 years from 1978 to 2014, relating to the effect on concrete compressive strength of the various aspects related to the use of recycled aggregates (RA) such as replacement level, size, origin, moisture content, exposure of the resulting concrete to different environmental conditions ...
This paper based on the related recycled concrete aggregate (RCA Recycled Concrete Aggregate) literature, mainly involve its properties, preparation and performance of RCA concrete, construction application etc..This has got a lot of reliable conclusions, so as to give some inspiration and help to the related scholars.
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.
Use Of Recycled Aggregate In Concrete -BY Mr. Tushar R Sonawane RESEARCH GRADUATE MAEER‟S MIT PUNE, Prof. Dr. Sunil S. Pimplikar H. O. D. CIVIL ENGG. DEPARTMENT, MAEER‟S MIT PUNE. _____ ABSTRACT Use of recycled aggregate in concrete can be useful for environmental protection. Recycled aggregates are the materials for the future.
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.
Leaching from recycled and secondary aggregates – a review 1 1 Introduction 1.1 Background to the report There is no doubt that the use of recycled and secondary aggregates is a cornerstone of sustainable construction.
Finally, it should be noted that Sharma and Pal Bansal published a review on different aggregate shapes of recycled plastic waste in concrete, such as particles (shredded and melted) and fibres . However, two important gaps in this research are the analysis of
A REVIEW ON RECYCLED FINE AGGREGATE CONCRETE K.S. Prasath1, R. Goudhamaram2, E. Dinesh3 1Assistant Professor, Department of civil Engineering, Sri Manakula Vinayagar Engineering College ...
2013/03/03 · AbstractIn Singapore, the applications of recycled concrete aggregate (RCA) are limited to nonstructural concrete, road construction, and backfilling. To realize the beneficial use of RCA, an in-de... Create a new account
TY - JOUR T1 - The potency of recycled aggregate in new concrete: A review AU - Anike, Emmanuel Ejiofor AU - Saidani, Messaoud AU - Ganjian, Esmaiel AU - Tyrer, Mark AU - Olubanwo, Adegoke PY - 2019/10/7 Y1 - 2019
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. In addition, the use of RCA leads to a possible solution to...
The objectives of this paper are to review the published research and development studies on recycled concrete aggregate in the GCC region, examine the current use of such material in construction, and recommend suitable strategies for wider applications.
recycled concrete aggregate surface as demonstrated by the SEM analysis. The properties of recycled concrete aggregate such as density and water absorption have improved after HCl treatment as compared to untreated recycled concrete
Numerous experimental and theoretical studies on recycled aggregate concrete have been carried out in China in the past 10 years. This paper provides a comprehensive review of the related findings of research on the mechanical properties of RAC in China. The ...