Recycled Aggregates - Portland Cement Association

20-7-2020· The use of crushed concrete or Recycled Concrete Aggregate (RCA) has proven to be especially suitable for high-performance concrete, resulting in countless experimental tests (Etxeberria et al., 2007) and many reviews of conventional concrete manufactured with RCA regarding fresh state (Silva et al., 2018), compressive strength (Silva et al., 2015), mechanical behavior (Behera et al., 2014 ...

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Recycled Concrete Aggregate - an overview | ScienceDirect ...

Recycled concrete aggregate (RCA) is the designation used in BS 8500-2 for recycled aggregate principally comprising crushed concrete. Designations of recycled aggregate other than RCA are of lower quality and may contain significant quantities of masonry which would preclude or limit their use in structural concrete.

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Self Compacting Concrete with Recycled Coarse Aggregates

Self Compacting Concrete (SCC) is an innovative concrete that does not require any vibration for compaction. The study was carried out by replacing various percentages characteristics of SCC are a rapid rate of concrete placement (10%, 20%, 30%) of natural aggregates in SCC with recycled

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Recycled Rubber as an Aggregate Replacement in Self ...

The fact that fine and coarse aggregate makes approximately 50% of weight of the self-compacting concrete can be used as a motivation to thoroughly study the influence of partially replacing natural aggregate with waste tire rubber, not only to provide lightweight self-compacting concrete (SCC) and to preserve natural resources, but also to maintain or even improve the mechanical properties ...

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Properties of Self-Compacting Concrete with Recycled ...

The utilisation of recycled concrete aggregate (RCA) in Self-Compacting Concrete (SCC) has the potential to reduce both the environmental impact and financial cost associated with this increasingly popular concrete type. However, to date limited research exists exploring the use of coarse RCA in SCC. The work presented in this paper seeks to build on the existing knowledge in this area by ...

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Recycled Aggregate Self Compacting Concrete

recycled aggregate concrete is still scarce. This study attempts to examine the influence of recycled aggregate on stren gth, permeability, acid attack, chloride penetration, and alkalinity of self compacting concrete. This research is an attempt to provide very useful information for the practical

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

Use of recycled concrete aggregate in concrete: A review Article (PDF Available) in Journal of Civil Engineering and Management 19(6):796-810 · December 2013 with 11,186 Reads How we …

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What is Recycled Aggregate Concrete?

Posted by ReAgg on June 29, 2018 in Onsite Crushing, Recycled Aggregate, Recycled Concrete Having old or excessive concrete on a project site can delay the completion of those projects. Most people think that either working around it or disposing of it are the only options.

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recycled aggregate concrete in scc ppr - Grinding Mill …

recycled aggregate concrete in scc ppr. Posted at: June 7, 2013 [ 4.8 - 7554 Ratings ] Recycled glass as a partial replacement for fine … Self-Compacting Concrete (SCC) … The results showed that recycled glass aggregate ...

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recycled aggregate concrete in scc ppr – Grinding Mill …

recycled aggregate concrete in scc ppr [ 4.8 - 7973 Ratings ] The Gulin product line, consisting of more than 30 machines, sets the standard for our industry. We plan to help you meet your needs with our equipment, with our distribution and product support system, and the ...

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Recycled Aggregate Self Compacting Concrete

recycled aggregate concrete is still scarce. This study attempts to examine the influence of recycled aggregate on stren gth, permeability, acid attack, chloride penetration, and alkalinity of self compacting concrete. This research is an attempt to provide very useful information for the practical

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Recycled Aggregate Self-Compacting Concrete

concrete (SCC) for di erent levels of recycled aggregates (RA). The binder content was kept constant for all concrete mixtures, with a water to binder ratio (w/b) of 0.5. SCC mixtures were prepared with 0%, 30%, 50% and 100% of coarse RA. The pore distribution of the new paste was evaluated by MIP test,

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(PDF) An Investigation of Concrete Properties with ...

In this study, recycled aggregate concrete (RAC) modified with polypropylene fiber (PP) and air-entraining agent (AGA) was prepared, and the effects of PP and AGA on the static (compressive ...

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The use of recycled concrete aggregate in structural concrete

recycled concrete aggregate (RCA) in structural concrete. The objectives of the project were: (i) to update clauses 1702 and 1703 of the Specification for Highway Works (SHW) to permit the use of RCA. (ii) to draft an Advice Note on the use of RCA. The project was divided into 3 phases:

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CHARACTERIZATION OF RECYCLED SELF-COMPACTING CONCRETE ...

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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Concrete recycling - Wikipedia

Concrete recycling is the use of rubble from demolished concrete structures. Recycling is cheaper and more ecological than trucking rubble to a landfill. Crushed rubble can be used for road gravel, revetments, retaining walls, landscaping gravel, or raw material for new concrete.Large pieces can be used as bricks or slabs, or incorporated with new concrete into structures, a material called ...

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Feasibility study of using fine recycled concrete ...

While local RCA could be successfully used in portland cement concrete, most of the RCA, particularly fine recycled concrete aggregate (FRCA) are currently only used in low-profile applications. A feasibility study of usage of FRCA (up to 100% replacement of natural fine aggregate) in high-performance concrete such as self-consolidation concrete (SCC) is needed.

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Recycled Aggregate Self-Compacting Concrete

concrete (SCC) for di erent levels of recycled aggregates (RA). The binder content was kept constant for all concrete mixtures, with a water to binder ratio (w/b) of 0.5. SCC mixtures were prepared with 0%, 30%, 50% and 100% of coarse RA. The pore distribution of the new paste was evaluated by MIP test,

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Carbonation resistance of self-compacting recycled ...

The paper presents the results of carbonation resistance of Self-Compacting Concrete (SCC) made with coarse recycled concrete aggregates and fine recycled concrete aggregates. To evaluate the carbonation resistance of SCC mixes, two different groups consisting of nine SCC mixes were prepared.

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Recycled Aggregate Self Compacting Concrete

recycled aggregate concrete is still scarce. This study attempts to examine the influence of recycled aggregate on stren gth, permeability, acid attack, chloride penetration, and alkalinity of self compacting concrete. This research is an attempt to provide very useful information for the practical

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CHARACTERIZATION OF RECYCLED SELF-COMPACTING CONCRETE ...

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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Recycled Aggregate Self Compacting Concrete: A Sustainable ...

recycled aggregate. the first number represent the strength of concrete followed by R and a number which represent the percentage of recycled aggregate in concrete. IV. T METHODS The entire test program was divided into two parts. Testing of fresh properties of SCC followed by its Strength investigations. A. Fresh State Properties

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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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Characterization of Recycled Aggregate Concrete | …

The coarse recycled concrete aggregate (RCA) used in this investigation was sourced from the tested concrete specimens like cubes, cylinders, prisms and beam specimens originally tested for various purposes in the concrete testing laboratory of IIT Roorkee. Total six numbers of concrete …

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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

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Fresh properties of self-compacting concrete containing ...

replacement in high-density concrete. Recycled glass as a partial replacement for fine ag-gregate in SCC was also investigated by (Afshoon and Sharifi 2014). They reported that the slump flow in-creased with the increase of recycled glass content. On the other hand, the compressive strength, splitting ten-

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