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properties enhancement of recycled aggregate concrete

properties enhancement of recycled aggregate concrete

Properties enhancement of recycled aggregate concrete ...

2018-8-1  In this study, the intrinsic properties of recycled coarse aggregates (RC), associated with bonded mortar, were modified with two different pretreatment techniques viz-a-viz HCl pretreatment and Na 2 SO 4 pretreatment, while maintaining a fixed aggregate-to-solution ratio of 1:4.5. The residual bonded mortar was quantified to evaluate the potential of both techniques.

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Enhancement of recycled aggregate properties by ...

2018-5-1  Strengthening the attached old cement mortar of recycled concrete aggregate (RCA) is a common approach to enhance the RCA properties. Accelerated CO 2 curing has been regarded as an alternative way to enhance the properties of RA. However, the improvement of the properties of RCA was limited by the shortage of reactive components in the old cement

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Enhancement of properties of recycled coarse aggregate ...

2020-4-8  4.4 Properties of fine and recycled coarse aggregate Locally available sand (fine aggregate) conforming to IS: 383-1970 [46] is collected from a nearby river and used in the present study. For recycled coarse aggregate, the parent concrete is crushed through a mini jaw crusher maintaining the size of aggregate between 20 and 4.75 mm.

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Enhancement of recycled aggregate concrete properties

The quality of Recycled Aggregate (RA) concrete having 100% coarse RCA got improved by using pozzolanic and sodium silicate solution as new treatment solutions. At

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Enhancement of recycled aggregate concrete properties

However, using recycled concrete aggregate (RCA) in concrete involves various obstacles and controversial issues in controlling the quality of recycled aggregate concrete (RAC). This study is an effort to improve the quality of RAC containing 100% coarse RCA by using pozzolanic and sodium silicate solution as new treatment solutions.

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Enhancement of recycled aggregate properties by ...

Strengthening the attached old cement mortar of recycled concrete aggregate (RCA) is a common approach to enhance the RCA properties. Accelerated CO2 curing has been regarded as an alternative way ...

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Enhancement of properties of recycled coarse aggregate ...

2016-3-16  P Suman Jha (2016): Enhancement of properties of recycled coarse aggregate concrete using bacteria, International Journal of Smart and Nano

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Property enhancement of recycled coarse aggregate using ...

2021-1-1  Aggregate properties test. Water absorption and specific gravity test for RCA was performed based on IS: 2386 (part III) − 1963 before and after the treatment of RCA. Aggregate mechanical properties such as impact, abrasion, and crushing value test were performed based on IS: 2386 (part IV) − 1963 for treated and untreated RCA. 4.7. Weight ...

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PROPERTIES OF RECYCLED AGGREGATE CONCRETE

2015-2-18  Mirjana Malešev, et al., Properties of recycled aggregate concrete Contemporary Materials, V −2 (2014) Page 242 of 249 2.4. Bulk density of aggregate The bulk density of the recycled aggregate, due to a higher porosity of mortar layer, has a lower value than the bulk density of natural aggregates and ...

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Mechanical Properties of Recycled Aggregate Concretes ...

In this study, the impact of steel fibres and Silica Fume (SF) on the mechanical properties of recycled aggregate concretes made of two different types of Recycled Coarse Aggregates (RCA) sourced from both low- and high-strength concretes were evaluated through conducting 60 compressive strength tests. The RCAs were used as replacement levels of 50% and 100% of

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Enhancement of recycled aggregate concrete properties

However, using recycled concrete aggregate (RCA) in concrete involves various obstacles and controversial issues in controlling the quality of recycled aggregate concrete (RAC). This study is an effort to improve the quality of RAC containing 100% coarse RCA by using pozzolanic and sodium silicate solution as new treatment solutions.

get price

ENHANCEMENT OF RECYCLED AGGREGATE CONCRETE

2018-1-28  Recently, decreasing natural sources of aggregate accompanied by increasing large quantitiesof construction and demolition waste (CDW) cause challenges for environment and construction industry. Asignificant solution for this is to recycle CDW as a new aggregate source for concrete. However, usingrecycled concrete aggregate (RCA) in concrete involves various

get price

Enhancement of properties of recycled coarse aggregate ...

2020-4-8  4.4 Properties of fine and recycled coarse aggregate Locally available sand (fine aggregate) conforming to IS: 383-1970 [46] is collected from a nearby river and used in the present study. For recycled coarse aggregate, the parent concrete is crushed through a mini jaw crusher maintaining the size of aggregate between 20 and 4.75 mm.

get price

Enhancement of recycled aggregate properties by ...

Strengthening the attached old cement mortar of recycled concrete aggregate (RCA) is a common approach to enhance the RCA properties. Accelerated CO 2 curing has been regarded as an alternative way to enhance the properties of RA. However, the improvement of the properties of RCA was limited by the shortage of reactive components in the old cement mortar available for

get price

Enhancement of recycled aggregate properties by ...

Strengthening the attached old cement mortar of recycled concrete aggregate (RCA) is a common approach to enhance the RCA properties. Accelerated CO2 curing has been regarded as an alternative way ...

get price

Enhancement of properties of recycled coarse aggregate ...

Due to rapid construction, necessity for raw materials of concrete, especially coarse aggregate, tends to increase the danger of early exhaustion of the natural resources. An alternative source of raw materials would perhaps delay the advent of this early exhaustion. Recycled coarse aggregate (RCA) plays a great role as an alternative raw material that can replace the natural

get price

Mechanical Properties of Recycled Aggregate Concretes ...

In this study, the impact of steel fibres and Silica Fume (SF) on the mechanical properties of recycled aggregate concretes made of two different types of Recycled Coarse Aggregates (RCA) sourced from both low- and high-strength concretes were evaluated through conducting 60 compressive strength tests. The RCAs were used as replacement levels of 50% and 100% of

get price

Recycled Concrete Aggregates – Its Uses, Properties ...

2020-8-18  History. Recycled concrete aggregates or Crushed concrete aggregates has been in use since the ancient times, only to be integrated with gravel, sand, and cement to ensure durability. The practice was first recorded in

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Impact Properties of Recycled Aggregate Concrete with ...

2020-9-2  The optimal soaking time and nanosilica concentration were chosen by the physical properties of the nanosilica-modified recycled aggregate. Recycled aggregate concrete (RAC) and nanosilica recycled aggregate concrete (SRAC) were fabricated by using ordinary recycled aggregate and nanosilica-modified recycled aggregate. Based on the comparative

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(PDF) Recycled concrete aggregates - ResearchGate

2021-11-29  In this paper, three different types of recycled aggregates are considered, namely recycled concrete aggregate (RCA), recycled brick aggregate (RBA), and recycled concrete block aggregate (CBA ...

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Enhancement of recycled aggregate properties by ...

Strengthening the attached old cement mortar of recycled concrete aggregate (RCA) is a common approach to enhance the RCA properties. Accelerated CO 2 curing has been regarded as an alternative way to enhance the properties of RA. However, the improvement of the properties of RCA was limited by the shortage of reactive components in the old cement mortar available for

get price

ENHANCEMENT OF RECYCLED AGGREGATE CONCRETE

2018-1-28  Recently, decreasing natural sources of aggregate accompanied by increasing large quantitiesof construction and demolition waste (CDW) cause challenges for environment and construction industry. Asignificant solution for this is to recycle CDW as a new aggregate source for concrete. However, usingrecycled concrete aggregate (RCA) in concrete involves various

get price

Enhancement of properties of recycled coarse aggregate ...

Due to rapid construction, necessity for raw materials of concrete, especially coarse aggregate, tends to increase the danger of early exhaustion of the natural resources. An alternative source of raw materials would perhaps delay the advent of this early exhaustion. Recycled coarse aggregate (RCA) plays a great role as an alternative raw material that can replace the natural

get price

Frontiers Enhancement Treatment of Recycled Concrete ...

2021-7-22  Aggregate is an essential component in concrete, occupying 60–70% of the concrete by volume. Nevertheless, the application of natural aggregate (NA) is restricted due to the finite resources and long regeneration period. Recycled concrete aggregate (RCA), as common CD waste, has received widespread attention for its usage to replace NA.

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Critical Review of Recycled Aggregate Concrete Properties ...

Although the properties of recycled aggregate concrete are widely considered to be inferior to those of natural aggregate concrete, research in the field still is of merit due to growing awareness of environmental concerns relating to the concrete construction and demolition industry. In addition, some methods have been proposed to improve the ...

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Recycled Concrete Aggregates – Its Uses, Properties ...

2020-8-18  History. Recycled concrete aggregates or Crushed concrete aggregates has been in use since the ancient times, only to be integrated with gravel, sand, and cement to ensure durability. The practice was first recorded in

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THE IMPROVEMENT OF RECYCLED CONCRETE

2016-6-7  mechanical properties for the recycled aggregate concrete. Meanwhile, the alkalinity of recycled aggregate concrete, chloride and sulphate contents of recycled aggregate have not been adversely affected. In the procedure shown in [12], the coarse recycled concrete aggregates were kept immersed in HCl with a molarity of 0.5 mole for 24 h.

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Impact Properties of Recycled Aggregate Concrete with ...

2020-9-2  The optimal soaking time and nanosilica concentration were chosen by the physical properties of the nanosilica-modified recycled aggregate. Recycled aggregate concrete (RAC) and nanosilica recycled aggregate concrete (SRAC) were fabricated by using ordinary recycled aggregate and nanosilica-modified recycled aggregate. Based on the comparative

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Examining the Influence of Recycled Concrete Aggregate

2020-4-2  Abstract Along with the growing development of countries around the world, there are huge amounts of construction and demolition works which produce large volumes of recycled concrete aggregate (RCA) and these are increasing over the past few decades. One of the more practical ways to manage the RCA wastes is through re-using them as aggregate to produce

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Recycled Concrete Aggregate Crushed Concrete

2021-12-3  Recycled Concrete Aggregate is that the use of debris from dismantled concrete structures. utilization is cheaper and a lot of ecological than truckage debris to a lowland.. Crushed debris is often used for road gravel, revetments,

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