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ISSN: 2321-9653
Estd : 2013
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Ijraset Journal For Research in Applied Science and Engineering Technology

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A Review on Recycled Aggregate Concrete Reinforced With Fibers

Authors: Savidaboina Ashok Babu Naidu , Bimalendu Dash

DOI Link: https://doi.org/10.22214/ijraset.2022.42411

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Abstract

In the structure interaction, the reusing of recycled aggregates emerging from building and destruction trash is perhaps the best choice to keep up with the climate and the regions, it likewise assists with safeguarding normal substantial sources from exhaustion effectively. The utilization of recycled aggregates in new substantial assembling, this decrease ascends with the ascent in the level of recycled aggregates utilized in concrete, which has made numerous scientists embrace many explores on the best way to upgrade the qualities of recycled aggregate concrete. This paper presents a few examinations that analyzed the impact of adding steel fiber to work on the mechanical and durability properties of concrete containing recycled aggregates.

Introduction

I. INTRODUCTION

Development and concrete ventures have numerous components answerable for ecological contamination and maintainability issues. These components incorporate mining of unrefined substances, producing of totals and concrete, movement of these materials to the building site, development squanders. To keep up with the nature of the climate, numerous ecological offices all over the planet are asking concrete and total ventures to decrease their requests for natural substances. These ecological offices are rousing development businesses to use reused totals what's more, advantageous cementitious materials (SCMs) [1]. As of late, the reuse of waste concrete as reused substantial totals (RCA) to either to some extent or thoroughly supplants regular totals for new cement has arisen as an industrially practical and in fact,   Doable strategy for reusing waste cement. A substantial involving RCA as coarse total is named recycled coarse aggregates and will be alluded to as RAC(recycled aggregate concrete) for effortlessness in this review. The reusing of waste cement has critical ecological advantages, for example, supportable use of normal assets and saving landfill spaces, prompting a rising measure of examination as of late. Existing examinations take care of various points, for example, mechanical properties and toughness of RAC and primary execution of individuals cast with RAC. blend plans of both typical strength RAC and superior execution RAC Contrasted with normal total cement RAC has lower explicit gravity, lower strength and solidness, bigger jerk and shrinkage. Also, the substitution level of RCA, which is normally characterized as the proportion between the mass of reused total to the complete mass of natural coarse total, has been found to impact the pressure strain bend of RAC. It has been shown that for RP (replacement percentage) going from 0 to 100 percent, the RAC shows an expansion in the resist top pressure and a huge reduction in flexibility as described by their sliding part of the pressure strain bend [2].  Another kind of Steel fiber built up Reused Total Substantial which comprises of Crum rubber. This new material has been begat on the accompanying contemplations:  (1) the consideration of recycled coarse aggregates (RCA) and elastic particles is mostly for the natural and monetary importance. (2) The steel fiber and elastic particles are utilized to work on the exhibitions of cement both when openness to various temperatures.(3) The invaluable collaboration exists between steel-fiber and elastic as referenced in the firmness, sturdiness and fragility are the central mechanical properties.  The progressions of these properties after openness to high temperatures are vital for the plan of cement structures. It is, accordingly, more critical to examine the mechanical properties of cement in the structures exposed to long haul high temperatures. An ever increasing number of considerations have been paid to the mechanical properties of cement at high temperature or the remaining properties of cement after openness to high temperatures [3].  To moderate these patterns the development business should be ecologically what's more, financially reasonable. The utilization of reused aggregates (RAs), specifically totals from CDW or precast substantial build-ups, is by all accounts a promising commitment towards the manageability of the development industry. This paper presents the after effects of trials directed on recycled aggregate concrete (RAC) to which super-plasticizer has been added, to investigate the impacts these totals and admixtures have on the mechanical properties of the subsequent substantial blends [4].

The stuck mortar likewise affects the water ingestion pace of the RA, since it has high porosity. The high ingestion limit of RA implies that more water is required than for customary cement to acquire a similar usefulness. To create a RAC like regular concrete the likely ingestion and the assimilation after some time of the RA should be known so the development of the compelling w/c proportion during the blend and thereafter can be anticipated. He likewise closed that pre-immersion of RA adversely influences the substantial's mechanical execution and its strength. All things considered, an improved arrangement is counterbalanced the water retention by adding additional blending water. The compressive and it were likewise assessed to divide elastic qualities. Most of studies report that the substitution of regular by RA, keeping up with the size evaluating and the new concrete functionality, may prompt qualities extremely near those acquired for customary cement.

II. LITERATURE REVIEW

  1. Liaqat Ali Qureshi et al (2020): Four different S.C.M’s (supplementary cementitious materials like Silica Fume -10%, ground granulated blast furnace slag-30% , Fly Ash – 20%, Rice Husk Ash -15%) by mass replacement of OPC are mixed with conventional concrete in order to find out the mechanical properties and durability of the concrete. To find the mechanical properties, compressive strength test, Split tensile strength test and elastic modulus tests are done and to find out the durability of concrete water absorption test, chloride penetration test and acid attack resistance are checked. Addition of 10% silica fume to recycled aggregate concrete and 15% rice husk ash to recycled aggregate concrete gives an increase of 19% compressive strength. Adding 1% hook end steel fiber to 10% silica fume or 15% rice husk ash shows increasing resistance to acid attack by 74% & 82% for 28 days and 90 days respectively.
  2. G.M. Chen et al (2014): Experimental investigation takes place on Five mixes which are prepared as per mix proportions. In those mixes twelve standard cylindrical specimen are taken for consideration on exposure to elevated temperatures. In each mix Cement ,fine aggregate, water, plasticizer are added and One mix with natural coarse aggregate, one mix with  recycled aggregate concrete, three mixes with combination of recycled aggregate concrete and steel fibers varying 5%, 10% ,15% of  volume are prepared. From those 12 cylinders of each mix, three are tested instantly. Remaining nine samples are divided into three groups and exposed to 200, 400, 600 degree centigrade in furnace. After this exposure to elevated temperatures the colour and cracks on surface are checked as primary and noticed cracks with naked eye for the specimen liable to 400º C & 600º C, tested for compressive strength which shows decrease of 15% compressive strength for the specimens which are liable to 200º C and 41%, 69% decrease of compressive strength for the specimens which are liable to 400º C, 600º C.
  3. D. Matias et al (2013): Had studied the crushing process of natural and recycled coarse aggregates and their influence on workability, compressive strength and density, four mixes are prepared they are 100NACTP1, 100RACTP1-which are 100% natural aggregate and recycled aggregates of primary crushing respectively and 100NACTP2, 100RACTP2 - which are 100% natural aggregate and recycled aggregates of primary crushing and secondary crushing respectively. A part from these coarse aggregates, cement, sand, water are mixed for 100NACTP, and for 100NACTP2, similarly cement, sand, water are mixed for 100RACTP1and for 100RACTP2.similarly for the study of super-plasticizer influence nine mixes are prepared according to the mix proportions , From these mixes ten wet cured cubes of 150 mm specimens are taken for consideration, three for 7 days, three for 14 days, and four for 28 days and tested for  compressive strength , again three cylinders of 300 mm height and 150 mm diameter are tested for split tensile strength test. Which shows addition of super-plasticizer reduces the loss of compressive strength & split tensile strength and using high performance super plasticizer is effective in time to attain workability and strength with recycled aggregates.
  4. Mahdi Koushkbaghi et al (2018): A total of 12 mixes are prepared, they are divided into four groups, In first group rice husk ash kept as 0% and natural coarse aggregate replaced with recycled coarse aggregate as 0%, 50%, 100%. In second group rice husk ash kept as 20% and natural coarse aggregates replaced with recycled aggregate as 0%, 50%,100%.In third group 7.6% of hooked end  steel fibers are added  to the  mix where rice husk ash  is kept as 0% and natural coarse aggregate is replaced with recycled aggregate as 0%,50%,100%.In fourth group 7.6% of hooked end  steel fibers are added  to the  mix where rice husk ash  is kept as 20% and natural coarse aggregate is replaced with recycled aggregate as 0%,50%,100%.These mixes are prepared according to mix proportions, and shows the replacement of natural coarse aggregate with recycled coarse aggregate effect on durable properties and mechanical properties. When percentage of recycled aggregate increases there is a decrease in tensile strength and compressive strength, a part from mechanical properties acid attack resistance and chloride diffusion also decreases. Availability of rice husk ash in the concrete increases the bond between the fibers and cementitious particles, also shows more resistivity to durability properties for recycled aggregate concrete.
  5. Vahid Afroughsabet et al (2017):  Had examined Four series of concrete mixes which are  A,B,C,D and each series contains 5 different mixes. Series A contains one normal aggregate concrete mix and four recycled aggregate concrete mixes with 0% GGBS & 0% steel fibers, Series B contains one normal aggregate concrete mix and four recycled aggregate concrete mixes with 30% GGBS in each mix. Series C contains one normal aggregate concrete mix and four recycled aggregate concrete mixes with 1% double hooked end steel fibers in each mix. . Series D contains one normal aggregate concrete mix and four recycled aggregate concrete mixes with 30% GGBS and 1% double hooked end steel fibers in each mix. These mixes are mixed with required proportions, the strength of high performance concrete which contains recycled aggregate rely on parent concrete. If the parent concrete strength is high from which recycled aggregate is taken then it leads to more strength of high performance concrete which contains that recycled aggregates. The replacement of natural coarse aggregate with 50% recycled aggregate shows more strength compared to 100% replacement, addition of GGBS (ground granulated blast furnace slag) in recycled aggregate concrete shows lowering of shrinkage and water absorption. Inclusion of double hook end steel fiber to recycled aggregate concrete shows an increase of 60% tensile strength and 88% flexure strength for 28 days, reduction of shrinkage, water absorption, & electrical resistivity upto 15%,23% and 86% for recycled aggregate concrete  respectively.
  6. Jodilson Amorim Carneiro et al (2013): Experimental study on two groups of concrete mixes, one group contains four mixes; first mix is conventional concrete with addition of plasticizer. In second mix coarse aggregate is replaced with recycled coarse aggregate. In third mix fine aggregate is replaced with recycled fine aggregate and in fourth mix both fine and coarse aggregates are replaced with recycled fine and recycled coarse aggregate respectively. Similarly another group consists of same mixes but steel fibers are included. Compressive strength test and split tensile strength tests are done to observe the stress-strain behaviour of recycled aggregate concrete reinforced with steel fibers, using recycled aggregate instead of natural aggregate shows the improvement of tensile, flexure and compressive strengths comparing with conventional concrete .inclusion of steel fibers and recycled aggregates shows better results in mechanical properties of recycled aggregate concrete and presence of fiber helps post crack regime of elasticity curve for recycled concrete.

Conclusion

1) Replacement of cement with supplementary cementitious materials shows more bonding and increases mechanical and durable properties for recycled aggregate concrete. Rice husk ash, fly ash, silica fume and GGBS show more improvement in recycled aggregate concrete compared with conventional concrete. 2) Use of super-plasticizer decreases water content which ultimately increases strength for recycled aggregate concrete with same workability, similarly using of high performance super plasticizer shows more improvement in the mechanical properties compared to without plasticizer recycled aggregate concrete and super-plasticizer recycled aggregate concrete 3) Inclusion of steel fibers with these supplementary cementitious materials and plasticizers shows more improvement in mechanical properties after post cracking of recycled aggregate concrete.

References

[1] Qureshi, Liaqat Ali, Babar Ali, and Asad Ali. \"Combined effects of supplementary cementitious materials (silica fume, GGBS, fly ash and rice husk ash) and steel fiber on the hardened properties of recycled aggregate concrete.\" Construction and Building Materials 263 (2020): 120636. [2] Chen, G. M?, Y. H? He, H? Yang, J. F. Chen, and Y. C. Guo.\"Compressive behavior of steel fiber reinforced recycled aggregate concrete after exposure to elevated temperatures.\" Construction and Building Materials 71 (2014): 1-15. [3] Guo, Y. C., J. H. Zhang, G. Chen, G. M. Chen, and Z. H. Xi \"Fracture behaviors of a new steel fiber reinforced recycled aggregate concrete with crumb rubber.\"Construction and Building Materials 53 (2014): 32-39. [4] Matias, D., J. De Brito, A. Rosa, and D. Pedro. \"Mechanical properties of concrete produced with recycled coarse aggregates–Influence of the use of superplasticizers.\" Construction and building materials 44 (2013): 101-109. [5] Ali, Babar, and Liaqat Ali Qureshi. \"Influence of glass fibers on mechanical and durability performance of concrete with recycled aggregates.\" Construction and Building Materials 228 (2019): 116783. [6] Ahmadi, Mohsen, Saeed Farzin, Abolfazl Hassani, and Mana Motamedi.\"Mechanical properties of the concrete containing recycled fibers and aggregates.\" Construction and Building Materials 144 (2017): 392-398. [7] Koushkbaghi, Mahdi, Mahyar Jafar Kazemi, Hossein Mosavi, and Ehsan Mohseni. \"Acid resistance and durability properties of steel fiber-reinforced concrete incorporating rice husk ash and recycled aggregate.\" Construction and Building Materials 202 (2019): 266-275. [8] Afroughsabet, Vahid, Luigi Biolzi, and Togay Ozbakkaloglu. \"Influence of double hooked-end steel fibers and slag on mechanical and durability properties of high performance recycled aggregate concrete.\"Composite Structures 181 (2017): 273-284. [9] Carneiro, Jodilson Amorim, Paulo Roberto Lopes Lima, Mônica Batista Leite, and Romildo Dias Toledo Filho. \"Compressive stress–strain behavior of steel fiber reinforced-recycled aggregate concrete.\"Cement and concrete composites 46 (2014): 65-72. [10] Ali, Babar, Liaqat Ali Qureshi, Syed Haroon Ali Shah, Safi Ur Rehman, Iqrar Hussain, and Maria Iqbal.\"A step towards durable, ductile and sustainable concrete: Simultaneous incorporation of recycled aggregates, glass fiber and fly ash.\" Construction and Building Materials 251 (2020): 118980. [11] Masood, Bilal, Ayub Elahi, Salim Barbhuiya, and Babar Ali. \"Mechanical and durability performance of recycled aggregate concrete incorporating low calcium bentonite.\" Construction and Building Materials 237 (2020): 117760. [12] Koushkbaghi, Mahdi, Mahyar Jafar Kazemi, Hossein Mosavi, and Ehsan Mohseni. \"Acid resistance and durability properties of steel fiber-reinforced concrete incorporating rice husk ash and recycled aggregate.\" Construction and Building Materials 202 (2019): 266-275. [13] Akhtar, Ali, and Ajit K. Sarmah. \"Construction and demolition waste generation and properties of recycled aggregate concrete: A global perspective.\" Journal of Cleaner Production 186 (2018): 262-281. [14] Das, Chandra Sekhar, Tanish Dey, Ramkrishna Dandapat, Bibhuti Bhusan Mukharjee, and Jitendra Kumar. \"Performance evaluation of polypropylene fibre reinforced recycled aggregate concrete.\" Construction and Building Materials 189 (2018): 649-659. [15] Zhao, Yuxi, Weilai Zeng, and Hongru Zhang. \"Properties of recycled aggregate concrete with different water control methods.\" Construction and Building Materials 152 (2017): 539-546. [16] Xie, Jian-he, Yong-chang Guo, Li-sha Liu, and Zhi-hong Xie. \"Compressive and flexural behaviours of a new steel-fibre-reinforced recycled aggregate concrete with crumb rubber.\" Construction and Building materials 79 (2015): 263-272. [17] Guo, Hui, Caijun Shi, Xuemao Guan, Jianping Zhu, Yahong Ding, Tung-Chai Ling, Haibo Zhang, and Yuli Wang. \"Durability of recycled aggregate concrete–A review.\" Cement and concrete composites 89 (2018): 251-259. [18] Thomas, Job, Nassif Nazeer Thaickavil, and P. M. Wilson. \"Strength and durability of concrete containing recycled concrete aggregates.\" Journal of Building Engineering 19 (2018): 349-365. [19] Kou, Shi-cong, and Chi-sun Poon. \"Effect of the quality of parent concrete on the properties of high performance recycled aggregate concrete.\" Construction and Building Materials 77 (2015): 501-508. [20] Kurda, Rawaz, Jorge de Brito, and José D. Silvestre. \"Water absorption and electrical resistivity of concrete with recycled concrete aggregates and fly ash.\" Cement and Concrete Composites 95 (2019): 169-182.

Copyright

Copyright © 2022 Savidaboina Ashok Babu Naidu , Bimalendu Dash. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

IJRASET42411Savidaboina

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Authors : ASHOK BABU NAIDU

Paper Id : IJRASET42411

Publish Date : 2022-05-09

ISSN : 2321-9653

Publisher Name : IJRASET

DOI Link : Click Here

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