STUDY ON RECYCLED CONCRETE AGGREGATES

STUDY ON SILICA INFUSED RECYCLED AGGREGATE

Study on Silica Infused Recycled Aggregate Concrete Using Design of . . . . 961 Journal of Engineering Science and Technology April 2017, Vol. 12(4) 2.2. Mix proportions and testing The concrete was designed as per IS 10262: 2009 [14] for a target mean strength of M50. Mixing proportions were done for 0%, 10%, 20%, 30%, 40%, and 50%

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A comparative study of recycled aggregates from concrete

Seven different types of recycled aggregates from construction and demolition waste (CDW) have been evaluated as granular materials for unbound road sub-bases construction. The results showed that recycled concrete aggregates complied with all specifications for using in the construction of unbound structural layers (sub-base) for T3 and T4 traffic categories according to the Spanish

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Multi-criteria study for recycled concrete aggregate

The specific feature of recycled concrete aggregates (RCA) is the presence of hardened mortars influencing their behaviour. This study aims to distinguish processes that allow the complete separation and quantification of attached mortar. The laboratory developed method has to be transferable on a wider scale to be exploited on a real recycling

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Upscaling the Use of Recycled Aggregate Concrete

Case Studies on the Use of Recycled Aggregate Concrete Much of the literature on the use of RA in concrete is based on academic research and laboratory results. The RA used in such experiments are typically comprised of a single constituent (mainly from end-of-life concrete) or exhibit very low contamination levels.

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Research Article A Study on the Bond Behavior of Corroded

A Study on the Bond Behavior of Corroded Reinforced Concrete Containing Recycled Aggregates HaifengYang, 1,2 ZhihengDeng, 1,2 YinghongQin, 1,2 andLiangshengLv 1,2 College of Civil Engineering and Architecture, Guangxi University, University Road, Nanning, Guangxi , China

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Study of recycled concrete aggregate quality and its relationship with

Concrete, Recycled aggregate, Compressive strength, Mechanical properties, Physical properties. 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

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Quantification of Recycled Concrete Aggregate (RCA

natural or aggregates. This study focused on characterizing two Ontario recycled concrete aggregate (RCA) sources and producing new concrete utilizing RCA as coarse aggregate (RCA concrete). Three aggregate types were investigated, one control aggregate source and two RCAs produced from the crushing of hardened concrete.

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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 testson aggregate characte ristics, fresh concrete propertiesand hardened concrete properties.

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Tests show promise for recycled aggregate use in concrete

Further studies concerning recycled aggregate incorporation on concrete are ongoing in IST's Department of Civil Engineering, Architecture and Georresources and CERIS Research Centre.

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PDF Keywords: Concrete, Marble Powder, Recycled coarse Aggregates

Abstract: The objective of the study is to investigate the mechanical properties of concrete with different replacement levels of ordinary Portland cement by Waste marble powder and natural coarse aggregates with recycled coarse aggregates.

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Experimental Study on Recycled Aggregate Pervious Concrete

Compared with concrete using "PU" aggregates, the strength of 7d and 28d concrete using "TOU" aggregates increased by 69.0% and 73.3%, respectively. Therefore, the quality of recycled aggregates should be strictly controlled during production, and the mix ratio should be designed according to different use environments and usage requirements.

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Use of recycled concrete aggregate in concrete: a review

Keywords: concrete; natural coarse aggregate; recycled concrete aggregate; fresh properties; hardened properties; durability. In their study, the NCA concrete gained strength gradually and had a higher flexural strength than RCA concrete at later age. Safiuddin et al.

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Impact Study on Mechanical Properties of Recycled Concrete

Through the experiments of recycling bricks from building waste, the paper studies the mechanical properties and the influence factors of recycled concrete which is based on waste brick aggregates. Using the method of gravels substituted by brick aggregates with the same volume, the optimal mechanical properties can be obtained through adjusting the aggregate contents of different recycled

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Sustainable Building - A Case Study on Concrete Recycling

WP4 Case studies This case-study paper focuses on concrete recycling in France as a means of understanding circular-economy transitions in the building-materials sector. The EU, including France, produces large volumes of construction and demolition waste (CDW) per year and aims to increase the re-use of these materials, reducing landfilling

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EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON

basalt or crushed limestone, aggregate sizes of 12 mm ('h in.) or 19 mm (:Y. in.), and It is well recognized that coarse aggregate plays an important role in concrete. Coarse aggregate typically occupies over one-third of the volume of concrete, and on the fracture energy of concrete. One study, conducted by Moavenzadeh and Kuguel

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Experimental Study on High Strength Concrete with Recycled

Experimental Study on High Strength Concrete With Recycled Aggregate 85 www.erpublication.org the paste and aggregate surface With most natural aggregates, it can be able to make concretes up to 120 MPa compressive strength by improving the strength of the cement paste, which

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Field Study of Recycled Concrete Aggregate in French Drain

A field study of recycled concrete aggregate (RCA) in French drains was conducted to evaluate in situ exfiltration drainage performance of RCA as a pipe backfill material. The project was aimed at: (i) developing field test protocols to measure the exfiltration drainage performance of the RCA French drain, (ii) long-term monitoring (12 months

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Experimental study on the compressive strength, damping

At present, many modification methods have been proposed to improve the performance of recycled aggregate concrete (RAC). In this study, tests on the compressive strength and damping properties of modified RAC with the addition of different proportions of recycled coarse aggregate (RCA) (0, 50, 100%), rubber powder (10, 15, 20%), steel fibre (5, 7.5, 10%) and fly ash (15, 20, 5%) are carried out.

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PDF] Study of recycled concrete aggregate... | Semantic Scholar

article{GonzlezTaboada2016StudyOR, title={Study of recycled concrete aggregate quality and its relationship with recycled concrete compressive This work studies the physical and mechanical properties of recycled concrete aggregate (recycled aggregate from concrete waste) and their

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Experimental Case Study of Recycled Aggregate Concrete

Experimental Case Study of Recycled Aggregate Concrete Using Bituminous Pavement Wastes Mohsin Khan1 1M.Tech Student, Civil Engineering Department, HCTM Technical Campus, Kaithal, Haryana, India -----***-----Abstract:-In general, aggregate make up 60-75% of concrete volume, so their selection is important, also they control concrete properties.

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Concrete from Recycled Aggregate | woc360

The recycled concrete replaces the natural aggregate for producing new concrete. Within the findings, the researchers discovered that the long-term performance of recycled concrete adequately compared to its conventional form, and experienced no issues over the five years of the study.

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A Comparative Study of the Properties of Recycled Concrete

A Comparative Study of the Properties of Recycled Concrete Prepared with Nano-SiO and CO Cured Recycled Coarse Aggregates Subjected to Aggressive Ions Environment. Authors: Song Gao Yaoyao Gong Nan Li Shunli Ban Ang Liu

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EXPERIMENTAL STUDY ON RECYCLED CONCRETE AGGREGATE

This research, however, shows that the recycled aggregates that are obtained from concrete specimen make good quality concrete. The compressive strength of recycled coarse aggregate (RCA) is found to be higher than the compressive strength of normal concrete when used up to a certain percentage. Many studies show that recycled aggregate

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Studies on Concrete Made of Recycled Materials for

industrial wastes. Present research is an effort to study the properties of concrete incorporating industrial wastes such as demolished concrete, SF and FA. Recycled coarse aggregate (RCA) concrete construction technique can be called as ‘green concrete’, as it minimizes the environmental hazard of the concrete waste disposal. Indian

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A COMPARATIVE STUDY OF CONCRETE WITH USING FIBRE

2.3 Recycled aggregate concrete: The crushing characteristics of hardened concrete are similar to those of natural rock and are not significantly affected by the grade or quality of the original concrete. Recycled aggregate produces from all but the poorest quality original concrete can be expected to pass the same

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AN EXPERIMENTAL STUDY ON FIBERLY REINFORCED CONCRETE

The recycled aggregates chosen for this work vary in the range of 0 to 30% at increments of 10% as a substitute of normal coarse aggregates in making concrete. Further the strength characteristics of polypropylene fiber reinforced recycled aggregate concrete is studied for different ages in days.

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Assessing the role and use of recycled aggregates in the

Vinay Kumar, BM, Ananthan, H, Balaji, KVA (2018) Experimental studies on utilization of recycled coarse and fine aggregates in high performance concrete mixes. Alexandria Engineering Journal 57: 1749 –

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Rheological and fresh properties of self-compacting

In this study, the rheological and fresh properties of self-compacting concrete (SCC) using recycled concrete aggregate (RCA) as both coarse and fine aggregates have been investigated. SCC mixtures were prepared containing natural aggregate replacements at the levels of 0, 50 and 100% for coarse recycled concrete aggregates (CRCA) and in each series of mixtures fine recycled concrete aggregate

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An Experimental Study on Recycled Coarse Aggregates

recycled concrete aggregate used on the ceiling strength of concrete. It also mentioned that recycled concrete aggregate could be used in high strength concrete mixes with the recycled concrete aggregate content in the concrete. Sagoe, Brown and Taylor (2002) stated that the difference between the characteristic of fresh and

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Suitability Investigation of Recycled Concrete Aggregates for

Recycled concrete aggregates were used in developed countries as a replacement to natural coarse aggregates for stabilizing the base course of road The findings of their study confirmed that even low-graded recycle aggregates have a capacity to be employed as aggregates for manufacturing

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PDF Processing and properties of recycled aggregate concrete

Although recycled aggregates are complicated to specify their properties, following properties are They have been studied the proper amount of replacement fine aggregate with recycled fine Normal properties of recycled coarse aggregates are a lower density, a lower elastic modulus and a

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