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durability of recycled aggregate concrete sciencedirect

durability of recycled aggregate concrete sciencedirect

Durability of recycled aggregate concrete - ScienceDirect

Mar 01, 2013  The physical, durability and mechanical properties of the CC and recycled aggregate concretes (RACs) at ages of 28, 180 and 365 days were studied. 2.1. Materials. CEM I 52.5 N/SR with a density of 3.11 g/cm 3 and a Blaine specific surface of 361 m 2 /kg was used.

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Durability of recycled aggregate concrete – A review ...

May 01, 2018  Although the researches on recycled aggregate concrete (RAC) has been going on for nearly 70 years , the use of RA in concrete structures is still limited due to its long-term durability concerns. With the decrease of natural aggregate resources and the increase of waste concrete generation, RAC has become a hot research topic around the world.

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Durability of recycled aggregate concrete ... - ScienceDirect

Jan 01, 2008  This suggests that recycled aggregate in concrete may impose a high risk to the durability of concrete structures in terms of chloride-induced corrosion of steel. Chloride ions will enter the concrete cover containing recycled aggregate more easily due to a higher rate of permeability altogether with water sorption, and subsequently reach the ...

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Durability of recycled aggregate concrete – A review ...

In general, the amount of adhered mortar and the quality of the original concrete have a significant effect on the properties of resulting concrete. The increase of RA content and w/c ratio results in poorer durability of concrete. In comparison, the negative effect of recycled fine aggregate is more obvious than that of recycled coarse aggregate.

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Durability of Recycled Aggregate Concrete: An Overview

Durability of recycled aggregate concrete: An overview Jianzhuang Xiao, Deng Lu, Jingwei Ying Journal of Advanced Concrete Technology,volume ( ), pp.11 2013 347-359 Comparative Tests of Beams and Columns Made of Recycled Aggregate Concrete and Natural Aggregate

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Durability of Recycled Aggregate Concrete

Dec 11, 2019  Durability performance of hardened concrete made with recycled aggregates as partial or full replacement of natural coarse aggregates is reported. Resistance to pure water and sulfate attack is investigated. The results show that a replacement ratio of 50% does not have a significant effect on the performance of recycled aggregate concrete mixes.

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(PDF) Durability of recycled aggregate concrete

The durability of recycled aggregate concrete in aggressive environments is one of the more unknown facts. This gives rise to a certain reluctance. While a lot of research can be found in ...

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Mechanical and Durability Properties of Concrete ...

Jun 27, 2021  This study examines the mechanical and durability properties of five different concrete mixes using the construction and demolition waste as partial replacement of coarse aggregate. In the concrete mixes, a constant water–cement (w/c) ratio of 0.43 was used. In contrast, the natural coarse aggregates were replaced by recycled coarse aggregate using five different replacement

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DURABILITY OF RECYCLED AGGREGATES CONCRETE: A SAFE

Concrete made with recycled aggregates (20%, 50%, and 100% replacement) from old masonry or from old concrete can have the same fresh workability and can achieve the same compressive strength of concrete made by natural aggregates in the range of 20-40 MPa at 28 days. Some compositional characteristics of concrete could have more influence on ...

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Effect of CO2 surface treatment on ... - sciencedirect

Jul 21, 2021  1.Introduction. Sulfate attack, alkali aggregate reaction, freeze-thaw cycling, and reinforcement corrosion in concrete will reduce the service life of concrete structures [1,2].Enhancing the durability of concrete structures can be achieved by better selection of mixture ingredients, mixture proportion, curing techniques, protective layer and surface treatment techniques.

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Strength and durability of recycled aggregate concrete ...

Feb 02, 2012  the case of recycled aggregate with 8–16 mm particle size, and near 60% in recycled aggregate with 4–8 mm particle size. Hasaba et al. [7] reported that 35.5% of old mortar is attached to natural gravel in recycled aggregate with 5–25 mm particle size produced from concrete with 24 MPa compressive strength. For the same

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Strength and Durability Evaluation of Recycled Aggregate ...

2.2 Properties of Recycled Aggregate Concrete Durability and other concrete properties are affected by the use of recycled aggregate in concrete mixes. Research efforts to introduce RA into the construction industry and to address their effects on properties could be classified to

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MECHANICAL AND DURABILITY PROPERTIES OF RECYCLED

Mechanical and durability properties of recycled aggregate concrete (RAC) made with different replacement levels of recycled coarse aggregate (RCA). Submitted to Construction and Building Materials. Huda, S.B. and Alam, M.S. 2014. Mechanical behavior of three generations of 100% repeated recycled coarse aggregate concrete.

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Mechanical and Durability Properties of Recycled Aggregate ...

The use of recycled concrete aggregates as an alternative aggregate material in concrete has been studied over the past two decades. It is now recognized that the recycled aggregate concrete (RAC), where natural aggregates are replaced with recycled concrete aggregates, is a promising technology for conserving natural resources and reducing the environmental impact of concrete.

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Durability of recycled aggregate concrete using pozzolanic ...

In this study, pulverized fuel ash (PFA) and ground granulated blast furnace slag (GGBS) were used to compensate for the loss of strength and durability of concrete containing recycled aggregate. As a result, 30% PFA and 65% GGBS concretes increased the compressive strength to the level of control specimens cast with natural granite gravel, but ...

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Recycled concrete in structural applications for ...

ScienceDirect Procedia Engineering 00 (2017) 000–000 ... product of recycled aggregate concrete (RAC), the wider use of recycled aggregate (RA) has been explored so that ... compressive strength, and also a decreased durability as discussed next. 2.2. Current RA applications and limitations for wider applications in construction

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The Structural Integrity of Recycled Aggregate Concrete ...

The Structural Integrity of Recycled Aggregate Concrete Produced with Fillers and Pozzolans presents a review on the use of by-products, fillers and pozzolanic materials in the development of concrete, with an emphasis on structural integrity. The volume is broken down into key sections, including a review of the types of materials that are used as latent hydraulic supplements, fillers and ...

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Performance of Green Concrete and Inorganic Coating ...

Green concrete (GC) was developed for realizing sustainable development, recycling waste materials, and reducing environmental pollution. For the practical use of GC, various harmful materials must blocked from entering its cracks and pores; and its strength and durability must be improved. The use

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Mechanical and Durability Properties of Concrete Produced ...

study mechanical and durability properties of concrete. In this method, recycled aggregate was heated to a temperature of 250°C (482°F) and then the aggregates were dry-mixed in a pan mixture to remove the attached mortar. This method removed 70 to 80% of attached mortar of the RCA. Concrete mixtures were prepared by using 50% and 100% RCA and

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Properties of concrete paving blocks made with waste

Richardson et al. (2011) investigated the effects of recycled aggregate on durability of concrete. They reported that recycled aggregate concrete is at least of equal durability as concrete man-ufactured with virgin aggregates. In recent years, irrespective of political, economic or ecological reasons, recycling has been encouraged throughout ...

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DURABILITY OF RECYCLED AGGREGATES CONCRETE: A SAFE

Concrete made with recycled aggregates (20%, 50%, and 100% replacement) from old masonry or from old concrete can have the same fresh workability and can achieve the same compressive strength of concrete made by natural aggregates in the range of 20-40 MPa at 28 days. Some compositional characteristics of concrete could have more influence on ...

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Durability of recycled aggregate concrete incorporating slag

Durability of recycled aggregate concrete incorporating slag Moetaz El-Hawary PhD Associate Professor, Department of Civil Engineering, Kuwait University,

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Durability Aspects of Recycled Aggregate Concrete: An ...

Authors: Smitha Yadav, Snehal Pathak Abstract: Aggregate compositions in the construction and demolition (CD) waste have potential to replace normal aggregates. However, to re-utilise these aggregates, the concrete produced with these recycled aggregates needs to provide the desired compressive strength and durability.

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Strength and Durability Evaluation of Recycled Aggregate ...

Short and long-term behavior of structural concrete with recycled concrete aggregate By S. Manzi " Polystyrene and Polyethylene with Clam Shell aggregate in cement as eco-friendly building materials "

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Effect of CO2 surface treatment on ... - sciencedirect

Jul 21, 2021  1.Introduction. Sulfate attack, alkali aggregate reaction, freeze-thaw cycling, and reinforcement corrosion in concrete will reduce the service life of concrete structures [1,2].Enhancing the durability of concrete structures can be achieved by better selection of mixture ingredients, mixture proportion, curing techniques, protective layer and surface treatment techniques.

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Durability of Concrete with Recycled Aggregate — Okayama ...

Durability of Concrete with Recycled Aggregate. / Ayano, Toshiki; Kawanaka, Ryoichi; Sakata, Kenji. In: Sever Conditions of Environment and Loading, Vol. 1, 06.2004 ...

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Recycled concrete in structural applications for ...

ScienceDirect Procedia Engineering 00 (2017) 000–000 ... product of recycled aggregate concrete (RAC), the wider use of recycled aggregate (RA) has been explored so that ... compressive strength, and also a decreased durability as discussed next. 2.2. Current RA applications and limitations for wider applications in construction

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Strength and Durability Evaluation of Recycled Aggregate ...

2.2 Properties of Recycled Aggregate Concrete Durability and other concrete properties are affected by the use of recycled aggregate in concrete mixes. Research efforts to introduce RA into the construction industry and to address their effects on properties could be classified to

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Performance of Recycled Aggregate Concrete: Durability ...

Indeed, when recycled aggregates are used in concrete as a direct replacement of natural aggregates it is normal for the permeation properties and resistance to durability of the resulting concrete to be less than that which would be normally expected; although often in fact satisfactory.

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Mechanical and Durability Properties of Induction-Furnace ...

Nov 26, 2018  Porosity and absorption also decreased in concrete where up to 50% of recycled aggregate was replaced by induction furnace slag. Considering these, it is concluded that 50% of recycled aggregate can be replaced by induction furnace slag that will result in superior mechanical and durability properties in recycled aggregate concrete.

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Case Studies in Construction Materials

Contents lists available at ScienceDirect ... durable concrete is possible. Yamato et al. [16] concluded that decrease in strength can be suppressed low by partial use of recycled coarse aggregate ...

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Resistance of Recycled Aggregate Concrete to Freeze-thaw ...

The focus was on freeze-and-thaw resistance of recycled aggregate itself, concrete from recycled aggregate, relation of them and resistance to chloride attack. Several studies and results of various research teams have been published on durability properties of concrete or fibre reinforced concrete with recycled aggregate [1–4]. Abbas et al ...

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Recycled Aggregates - Portland Cement Association

Recycled Aggregate Characteristics. 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 concrete aggregates produced from all but the poorest quality original concrete can be expected to pass the same tests required ...

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INTERNATIONAL JOURNAL OF M SCIENCES AND

ScienceDirect database was chosen because the specialists involved in the work consider it as one of the most adequate to the research ... 3 ABBAS, A. et al. Durability of recycled aggregate concrete designed with equivalent mortar volume method. Cement and Concrete

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