Performance of Recycled FineAggregate Concrete Using

Leave Comment

Performance of Recycled Fine-Aggregate Concrete Using ...

In this context, use of recycled fine aggregate (RFA) from construction and demolition (CD) waste can be considered as an effective elucidation. Conventional mix proportioning of RFA in concrete can not be used. To address this issue, a novel mix-proportioning method is developed using particle packing density and minimum paste theory.

Get price

Performance of Recycled Aggregate Concrete

behavior of recycled aggregate in concrete structures. experimenting fresh and hardened concrete, mixtures containing recycled aggregates. The percent of fine recycled aggregate in the all recycled aggregate was about 5.0% so it was excluded from the study. 0 %,30 % and 60 % of coarse recycled aggregate was used in the experimental tests .

Get price

PERFORMANCE OF RECYCLED AGGREGATE CONCRETE

performance of a concrete. In this paper, the effects of various percentages (0%, 25%, 50%, 75%, 100%) of Recycled Aggregate (RA) on compressive strength of Recycled Aggregate Concrete (RAC) were investigated. RA is used to replace natural aggregate (NA) as coarse aggregate in concrete mixes. This research also covered RAC mixtures at

Get price

Performance of Recycled Concrete Aggregates: A New ...

15-04-2021  Therefore, there are limits on the amount of recycled aggregate that can be used in a concrete mix. Higher amounts increase drying shrinkage and creep. Higher amounts also decrease tensile strength and modulus of elasticity. Testing determines acceptable ratios of recycled aggregates to natural aggregates.

Get price

Performance of concrete with recycled aggregates

recycled aggregates in concrete. This Rilem specification was based on experience obtained since the early eighties in The Netherlands, Denmark and Belgium. Since only few countries have substantial practical experience with the use of recycled aggregates in concrete, only few EC countries developed standards and regulations in this field.

Get price

Effect of recycled fine aggregates on performance of ...

20-05-2020  Recycled fine aggregates increase the strength of RPC up to 50% of sand replacement.

Get price

Performance of Recycled Fine-Aggregate Concrete Using ...

The construction sector is mainly accountable for the diminishing of natural resources and environmental imbalances due to unplanned mining activities. In this context, use of rec

Get price

Durability performance of concrete made with fine recycled ...

01-01-2010  After 35. days, the concrete was crushed.. The resulting material was composed of aggregates whose size ranged from 0 to 38.1 mm.Of these sizes only the fractions up to 1.19 mm were used, since this was the maximum dimension of the fine natural aggregates (river sand). After this screening, there were significant differences between the natural and recycled aggregates in terms

Get price

CONCRETE AND MORTAR PERFORMANCE BY USING RECYCLED AGGREGATES

mechanical performance of recycled-aggregate concrete and, as already shown, the same negative effect is detectable when natural sand is replaced by the fine recycled aggregate fraction.

Get price

Performance of concrete made with aggregates recycled from ...

09-11-2014  The aim of this paper is to evaluate the influence of the crushing process used to obtain recycled concrete aggregates on the performance of concrete made with those aggregates. Two crushing methods were considered: primary crushing, using a jaw crusher, and primary plus secondary crushing (PSC), using a jaw crusher followed by a hammer mill. Besides natural aggregates (NA),

Get price

Performance of concrete made with commercially produced ...

01-05-2001  This grading and a fine-to-coarse aggregate ratio of 46:54 were kept constant throughout the test program for all concrete mixtures. Based on visual inspection, the surface texture of the plant-crushed recycled concrete aggregate appeared characteristically grainy compared to the basalt.

Get price

Mechanical Performance of Concrete Made with Recycled ...

15-09-2020  This research aims at analysing the mechanical performance of concrete with recycled aggregates from concrete pavements. First, the characteristics of various natural and recycled aggregates used in the concrete were thoroughly analysed. The composition of the recycled aggregates was determined and several physical and chemical tests of the aggregates were

Get price

Mechanical performance of concrete made with aggregates ...

15-07-2015  With the objective of characterizing the mechanical performance of concrete with RA from CDW, several tests were performed. In the fresh state, the following properties were measured: slump using the Abrams cone based on EN 12350-2 (2002) and density according to EN 12350-6 (2002).The characterization of the hardened state included the following properties: compressive strength in cubic

Get price

End of life recycling - concretecentre

Recycled concrete can be used as aggregate in new concrete, particularly the coarse portion. When using the recycled concrete as aggregate, the following should be taken into consideration: Recycled concrete as aggregate will typically have higher absorption and lower specific gravity than natural aggregate and will produce concrete with slightly higher drying shrinkage and creep.

Get price

A case study on the viability of using increased ...

03-05-2021  When the results obtained on the mechanical properties of both natural (i.e. quarried) and recycled concrete aggregates (presented in Table 2) are studied carefully, it can be observed that, except from abrasion resistance, all other mechanical characteristics of recycled concrete aggregates were noticeably inferior compared to the characteristics of natural aggregates determined.

Get price

Ductile Evaluation and Mechanical Performance of Recycled ...

15-01-2021  It exhibits multiple crack characteristics under bending stress and greatly improves toughness during flexural, tensile, and compressive fracture. In this study, it is examined the mechanical properties of high fluidity and high toughness concrete (HFHTC) using fly ash as an admixture and recycled fine and coarse aggregate as an aggregate.

Get price

Performance of concrete made with aggregates recycled from ...

09-11-2014  The aim of this paper is to evaluate the influence of the crushing process used to obtain recycled concrete aggregates on the performance of concrete made with those aggregates. Two crushing methods were considered: primary crushing, using a jaw crusher, and primary plus secondary crushing (PSC), using a jaw crusher followed by a hammer mill. Besides natural aggregates (NA),

Get price

Durable Performance of Recycled Concrete Using Coarse and ...

The influence of synchronous use of coarse and fine recycled concrete aggregates on durable performance of recycled aggregate concrete (RAC) in air environment were determined. In this study, three series of concrete mixtures were prepared, in which the coarse recycled aggregate was used as 0%, 30%, 60% and 90% replacements of coarse natural aggregate and fine recycled aggregate as

Get price

Optimization of High-Performance-Concrete properties ...

Performance-Concrete (HPC) containing fine aggregates from concrete and brick wastes for different recycled aggregates substitution rates, using mixture design modeling.

Get price

Durability And Performance Characteristics Of Recycled ...

aggregate, including concrete mix proportions, fresh concrete performance and durability characteristics. Technical consideration for the use of recycled aggregates in premix concrete production, however, is strongly dependent on achieving satisfactory fresh and hardened concrete performance.

Get price

Long-Term Performance of Recycled Concrete Aggregate for ...

Long-Term Performance of Recycled Concrete Aggregate for Subsurface Drainage Toni McCulloch, ... the use of RCA as pipe backfill material may cause a long-term performance issue such as clogging due to fine accumulation and calcite precipitation on filter fabric.

Get price

Use of Recycled Concrete Aggregate in PCCP: Literature Search

aggregate, using fly ash, blending the RCA with virgin aggregates and using low-alkali cement. Lower strength of mixes made RCA can be overcome by adding water reducing agents, increasing the cement content and as mentioned previously, limiting the amount of recycled fine aggregate in the mix.

Get price

Recycling Fine Aggregate from Demolished Hollow Concrete ...

Page 1 of 10 Recycling Fine Aggregate from Demolished Hollow Concrete Block for Green Concrete in Ethiopia Lucy Feleke Nigussie1*, Muge Mukaddes Darwish 2 and Tewodros Ghebrab 1Department of civil and Environmental Engineering, Jimma University Institute of Technology, Jimma, Ethiopia 2Department of Civil, Environmental and Construction Engineering, Texas Tech University, Texas

Get price

A case study on the viability of using increased ...

03-05-2021  When the results obtained on the mechanical properties of both natural (i.e. quarried) and recycled concrete aggregates (presented in Table 2) are studied carefully, it can be observed that, except from abrasion resistance, all other mechanical characteristics of recycled concrete aggregates were noticeably inferior compared to the characteristics of natural aggregates determined.

Get price

Effect of Mineral Admixtures on the Performance of Low ...

25-05-2021  class M using recycled aggregate class L in which a decrease in compressive strength and an increase in drying shrinkage was observed [5]. In this study, to promote the use of low-quality recycled aggregate for structural concrete, the effect of multi-purpose mineral admixtures such as FA and BFS on the performance of the RAC class M was examined.

Get price
Contact us

Submit online

Please leave a message below and we will contact you as soon as possible.