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recycled aggregate concrete in scc ppr

Recycling Aggregates for Self-Compacting Concrete ...

This paper presents an original study on the use of coarse recycled concrete aggregate (CRA) to obtain self-compacting concrete. Concrete with substitution ratios of 20%, 50% and 100% are compared with a control concrete. The purpose of this comparison is to check the influence of CRA on fresh SCC as well as its physical and mechanical properties.

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Self-compacting concrete with recycled aggregates – A ...

Mar 01, 2019  Corinaldesi and Moriconi studied SCC with RA and ashes from urban solid waste incineration (MSWA). The RA used (CRA: with specific gravity of 2.31, D max of 15 mm and water absorption of 9%) had the following average composition: 70% concrete, 27% masonry, 2% bitumen and 1% other non-identified materials. The NA used showed the following properties: FNA (natural sand)

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Self-compacting concrete manufactured with recycled ...

Jul 20, 2020  5.2.2. SCC with RCA and other wastes (fly ash, silica fume, recycled asphalt pavement aggregates, rubber granules, and slags) The behavior of concrete manufactured with both RCA and FA can be inconsistent, mainly due to weaker bonding between the RCA and the FA than between the RCA and the cement matrix.

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ABSTRACT - American Concrete Institute

enhancements than that of SCC containing the same percentage of recycled concrete aggregate. Also, the combination of 25% crushed bricks aggregate + 15% recycled concrete aggregate facilitate the uses of significant percentages of these ruined buildings to be recycled with the production for the construction of new buildings.

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Utilization of waste concrete recycling materials in self ...

Oct 01, 2020  This paper evaluates the feasibility of preparing self-compacting concrete (SCC) by incorporating waste concrete recycling materials (WCRMs). Some or all of the natural materials were substituted with WCRMs, such as recycled coarse aggregate (RCA), recycled fine aggregate (RFA) and recycled powder (RP).

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Use of waste marble and recycled aggregates in self ...

Dec 01, 2014  The lower modulus of elasticity of recycled coarse aggregate concrete with respect to conventional concrete, was found. Tabsh and Abdelfatah, 2009a, Tabsh and Abdelfatah, 2009b conducted a study on the effect of recycled concrete aggregates on strength properties of concrete. It was found that the strength of recycled concrete can be 10–25% ...

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High-Performance Self-Compacting Concrete with Recycled ...

high-performance concrete produced with coarse recycled aggregates (CRA). The authors state that the microstructural properties of the aggregate/binder transition zone are one of the main causes for possible performance loss of these concrete mixes. Likewise, other authors have promising results in concrete with CRA for replacement ratios of up ...

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Recycled Aggregate Concrete - SlideShare

Nov 15, 2014  Classification properties of recycle aggregate concrete Material composition is the basis for classification of recycled concrete aggregate in two main types- 1) Crushed concrete 2) Mixed material Each of these types is divided in a class for bound and a class for unbound use Crushin g age Bulk specific gravity Bulk density Absorp tion ...

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A STUDY ON RECYCLED CONCRETE AGGREGATES

A STUDY ON RECYCLED CONCRETE AGGREGATES PAVAN P S 1, BABITHA RANI H ,DEEPIKA GIRISH , RAGHAVENDRA K M 2, VINOD P N 1,DUSHYANTH.V.BABU.R ,SHAIK NUMAN1 1Assistant Professor, Department of Civil Engineering, SET, Jain University. 2Student , Department of Civil Engineering, SET, Jain University. Abstract The amount of construction waste has been dramatically

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Self-Compacting Concrete with Recycled Aggregate—A

concrete (SCC) exploit its significance in the construction sector. The usage of recycled aggregate not only resolves the negative impacts on the environment but also prevents the usage of natural resources. Furthermore, it is necessary to understand the recycled aggregate property’s role in a mixed design and SCC

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recycled aggregate concrete in scc ppr - Grinding Mill China

Recycled glass as a partial replacement for fine Self-Compacting Concrete (SCC) The results showed that recycled glass aggregate

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CHARACTERIZATION OF RECYCLED SELF-COMPACTING

For producing SCC; coarse recycled aggregate obtained from crushed concrete was researched. In this research, three types of concrete mixtures were made. The percentages of recycled aggregated were 0%, 50% and 100% as a replacement of coarse aggregate. The results indicated that recycled aggregate can be used for making SCC.

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Effects of Recycled Concrete Aggregates on the Compressive ...

Apr 04, 2012  The effectiveness of internal curing of high-strength self-consolidating concrete (SCC) using saturated recycled-concrete aggregates is examined in this study. Tests were performed on SCC using natural rock aggregate (NR-SCC) and recycled-concrete aggregate (RC-SCC). Fresh concrete tests included slump-flow, slump-flow with a J-ring, and L-box ...

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High-Performance Self-Compacting Concrete with

high-performance concrete produced with coarse recycled aggregates (CRA). The authors state that the microstructural properties of the aggregate/binder transition zone are one of the main causes for possible performance loss of these concrete mixes. Likewise, other authors have promising results in concrete with CRA for replacement ratios of up ...

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Effect of GGBS on Self-compacting Recycled Aggregate Concrete

May 15, 2019  This study aim to determine the utilization of GGBS and recycled aggregate in SCC as an alternate material to cement and natural coarse aggregate by determining its workability and mechanical properties. Cement is replaced with GGBS at 20, 30, 40 and 50% by weight of cement in SCC and 40% of natural coarse aggregate is replaced with recycled ...

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Some Properties of Self Consolidating Concrete Produced

aggregates: normal (SCC) and recycled (RA-SCC). While the referring test corresponding to the use of normal recycled aggregates in the mix of SCC is fixed, the tests related to recycled aggregates self-consolidating concrete cover different mixes according to the amount of recycled aggregates per ratio to the normal aggregates content.

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Research Article Properties of Self-Compacting Concrete ...

Recycled aggregate . C - [ ], respectively. e recycled aggregate used was a crushed and unwashed recycled concrete aggregate, with a nominal size of mm sourced from a construction and demolition waste recycling facility. e coarse natural aggregate consisted of crushed granite with a nominal size of mm. Table presents the water absorption ( hours)

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Behavior of self-compacting concrete produced from ...

The covers the studying for the fresh and hardened properties of self-compacting concrete (SCC), using two types of fine materials (silica fume and limestone powder as 10% each by weight of cement. Also, the uses of crushed bricks aggregate and recycled concrete aggregate with different percentage of replacement from the aggregate (coarse ; fine) have been prepared in different concrete mixes.

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(PDF) Concrete with fine recycled aggregates: A review

In this paper, 371 cube specimens of recycled aggregate concrete with 0,30%, 50% and 100% recycled coarse aggregate replacement percentages were

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Fresh State Properties of Self-compacting Concrete with ...

Kou and Poon (2009) studied SCC with fine recycled aggregates (FRA) and coarse recycled aggregate (CRA) incorporation. The study consisted on the production of three RASCC families composed of 100% CRA and different replacement ratios of river sand with FRA. The characteristics of the aggregates are as follows: fine natural aggregates (FNA ...

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A Study on the Properties of Self Compacting Concrete ...

Aggregates) and RCA (Recycled Coarse Aggregates) obtained from RMC plant waste. To propose a mix design of M-20 SCC using particular pro-portions of RA. To determine the workability of self compacting concrete using chemical admixtures and recycled coarse and fine aggregates.

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Evaluation of Stress Block Parameters for SCC with ...

depth factor for Self Compacting Concrete(SCC)with recycled aggregate (RSCC). An experimental investigation is carried out on the stress strain characteristics of SCC by partially replacing 25, 50, 75 and 100 % of coarse aggregate by recycled concrete aggregate for varying design strength 30, 40, 50 MPa under monotonically increasing axial loading.

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Permeability properties of self-compacting concrete with ...

Permeability properties of SCC with 20%, 40% and 100% of coarse recycled aggregates were studied. According to the air permeability method applied, the SCC mixtures are considered airtight. The recycled coarse aggregate incorporation did not significantly affect the water permeability.

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recycled aggregate concrete in scc ppr - Grinding Mill China

Recycled glass as a partial replacement for fine Self-Compacting Concrete (SCC) The results showed that recycled glass aggregate

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Effects of Recycled Concrete Aggregates on the Compressive ...

Apr 04, 2012  The effectiveness of internal curing of high-strength self-consolidating concrete (SCC) using saturated recycled-concrete aggregates is examined in this study. Tests were performed on SCC using natural rock aggregate (NR-SCC) and recycled-concrete aggregate (RC-SCC). Fresh concrete tests included slump-flow, slump-flow with a J-ring, and L-box ...

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Recycled Concrete Aggregate Research Papers - Academia.edu

The feasibility of self-consolidating concrete (SCC) containing recycled concrete aggregate (RCA) was demonstrated in structural civil engineering applications. Yet, limited information exists regarding the effect of RCA additions, especially in presence of steel reinforcement, on

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A Study on the Properties of Self Compacting Concrete ...

Aggregates) and RCA (Recycled Coarse Aggregates) obtained from RMC plant waste. To propose a mix design of M-20 SCC using particular pro-portions of RA. To determine the workability of self compacting concrete using chemical admixtures and recycled coarse and fine aggregates.

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Effect of GGBS on Self-compacting Recycled Aggregate Concrete

May 15, 2019  This study aim to determine the utilization of GGBS and recycled aggregate in SCC as an alternate material to cement and natural coarse aggregate by determining its workability and mechanical properties. Cement is replaced with GGBS at 20, 30, 40 and 50% by weight of cement in SCC and 40% of natural coarse aggregate is replaced with recycled ...

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Fresh State Properties of Self-compacting Concrete with ...

Kou and Poon (2009) studied SCC with fine recycled aggregates (FRA) and coarse recycled aggregate (CRA) incorporation. The study consisted on the production of three RASCC families composed of 100% CRA and different replacement ratios of river sand with FRA. The characteristics of the aggregates are as follows: fine natural aggregates (FNA ...

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Formwork Pressure of Self-Consolidating Concrete ...

Title: Formwork Pressure of Self-Consolidating Concrete Containing Recycled Coarse Aggregates Author(s): Joseph J. Assaad and Jacques Harb Publication: Materials Journal Volume: 114 Issue: 3 Appears on pages(s): 491-500 Keywords: formwork pressure; recycled aggregates; self-consolidating concrete (SCC); thixotropy Date: 5/1/2017 Abstract: The successful use of highly flowable self ...

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Steel–concrete bond behaviour of self-compacting concrete ...

Jun 01, 2016  Tests were conducted to examine the bond of reinforcement in self-compacting concrete (SCC) produced using recycled coarse aggregate (RCA). The study considered one natural coarse aggregate, two sources of RCA (concrete tested in the laboratory and concrete from demolished old structures), two types of RCA (pre-treated and untreated), three RCA replacement percentages (25%,

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Properties of SCC containing pozzolans, Wollastonite micro ...

concrete smooth due to pore size and grain size refinement carried over by them in between the voids of cement particles. Hence the present study aims to utilize pozzolanic materials to miti-gate the limitations of recycled aggregates and fibers in yielding a SCC, which should have a flexural strength 4.5MPa and abrasion-resistant quality.

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Experimental Study on Thermal Conductivity of Self ...

The shrinkage and creep of recycled concrete are maintained when coarse aggregate replacement is less than 20%, whereas with a 100% replacement of coarse aggregate, shrinkage can increase up to 50% and creep between 30% and 60%. If fine recycled aggregate

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MECHANICAL PROPERTIES OF SELF COMPACTED

conventional concrete [12]. To achieve particular strength; recycled aggregate concrete requires lower w/c as compared with concrete made with natural aggregates . When [13] using only recycled aggregates, more cement must be added to maintain the same workability and compressive strength as conventional concrete [11].

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Evaluation of Stress Block Parameters for SCC with ...

depth factor for Self Compacting Concrete(SCC)with recycled aggregate (RSCC). An experimental investigation is carried out on the stress strain characteristics of SCC by partially replacing 25, 50, 75 and 100 % of coarse aggregate by recycled concrete aggregate for varying design strength 30, 40, 50 MPa under monotonically increasing axial loading.

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EXPERIMENTAL STUDY ON STRENGTH BEHAVIOUR OF SELF ...

Feb 20, 2016  BDW is used as coarse aggregate in the concrete, with an aim to achieve sustainable concrete. Key words: Recycled Aggregates, Self Compacting Concrete, Blast Furnace Slag, INTRODUCTION Self-Compacting Concrete (SCC) may be defined as a concrete which is able to flow in the interior of the formwork, filling it in a natural manner and passing ...

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Towards Sustainable Self-Compacting Concrete: Effect of ...

Steel industry results in accumulation of steel slag wastes causing severe environmental problems. These wastes can be recycled and replace natural aggregates resulting in sustainable green concrete. In this research, natural aggregates in self-compacting concrete (SCC) are replaced, wholly or partly, by steel slag coarse aggregates that were produced by crushing by-product boulders obtained ...

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