Evaluation of alkali reactivity of concrete aggregates via AC impedance spectroscopy
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DOI: 10.1016/j.conbuildmat.2017.04.053
Abstract: Abstract The alkali reactivity of concrete aggregates was evaluated by AC impedance spectroscopy as the main method along with linear expansion ratio, relative dynamic elastic modulus, and mercury intrusion porosimetry tests. The electrochemical parameters of… read more here.
Keywords: reactivity concrete; alkali reactivity; concrete aggregates; spectroscopy ... See more keywords
Strength and stiffness of concrete with recycled concrete aggregates
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DOI: 10.1016/j.conbuildmat.2017.07.015
Abstract: Abstract By crushing old concrete to make recycled concrete aggregates (RCA) for use in new concrete, the overall environmental impacts of concrete are reduced. However, a better understanding of the use of RCA in new… read more here.
Keywords: concrete aggregates; concrete; recycled concrete; strength stiffness ... See more keywords
Structural concrete with simultaneous incorporation of fine and coarse recycled concrete aggregates: Mechanical, durability and long-term properties
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DOI: 10.1016/j.conbuildmat.2017.07.215
Abstract: Abstract This investigation intends to analyse the effects of the variation of different types of recycled concrete aggregates (RCA) on structural concrete. For this purpose, two source concrete (SC) mixes, one produced in the laboratory… read more here.
Keywords: mechanical durability; long term; structural concrete; concrete aggregates ... See more keywords
Evaluation of attached mortar on recycled concrete aggregates by hyperspectral imaging
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DOI: 10.1016/j.conbuildmat.2018.03.048
Abstract: Abstract The presence of mortar attached to the surface of recycled aggregates strongly affect their quality, especially in order to reuse them for making new concrete. In this perspective, an innovative sensor-based quality control strategy… read more here.
Keywords: hyperspectral imaging; concrete aggregates; mortar; evaluation attached ... See more keywords
Evaluation of the double coated recycled concrete aggregates for hot mix asphalt
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DOI: 10.1016/j.conbuildmat.2018.03.158
Abstract: Abstract The use of recycled concrete aggregates (RCAs) in pavement industry can mitigate natural aggregates shortage, promote sustainable practices and reduce construction cost. However, the engineering properties of RCAs are usually inferior to those of… read more here.
Keywords: coated recycled; double coated; concrete aggregates; mix ... See more keywords
Utilisation of recycled concrete aggregates for sustainable highway pavement applications; a review
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DOI: 10.1016/j.conbuildmat.2019.117444
Abstract: Abstract Highway pavements are very expensive infrastructures that consume very high amounts of natural resources. Utilisation of recycled concrete aggregates (RCA) for highway pavement construction can bring a number of benefits towards environmental, economic and… read more here.
Keywords: concrete aggregates; utilisation; highway; highway pavement ... See more keywords
Chloride diffusion and binding in concrete containing NO2 sequestered recycled concrete aggregates (NRCAs)
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DOI: 10.1016/j.conbuildmat.2021.123328
Abstract: Abstract This study investigates the effect of NO2 sequestered recycled concrete aggregates (NRCA) on chloride ion diffusion and chloride binding capacity of concrete. Two types of NRCAs were used as a partial replacement for natural… read more here.
Keywords: recycled concrete; concrete aggregates; no2 sequestered; diffusion ... See more keywords
Implementation and validation of Dewar’s particle packing model for recycled concrete aggregates
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DOI: 10.1016/j.conbuildmat.2021.123429
Abstract: Abstract This paper validates Dewar’s particle packing modelling (PPM) theory for implementing both fine and coarse recycled concrete aggregates (RCAs) from using aggregates with multi-size classes (0/1, 0/4, 2/8, 0/8, 8/20, 0/20). The voids ratios… read more here.
Keywords: recycled concrete; concrete aggregates; model; particle packing ... See more keywords
Performance and durability of self compacting concrete using recycled concrete aggregates and natural pozzolan
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DOI: 10.1016/j.jclepro.2017.07.139
Abstract: Abstract The use of recycled concrete aggregates from rubble and demolition waste in combination with cementitious additions in concrete has several practical, ecological and economic advantages by reducing carbon dioxide emissions, reducing the excessive consumption… read more here.
Keywords: compacting concrete; natural pozzolan; concrete aggregates; using recycled ... See more keywords
Development of high-performance self-compacting concrete using waste recycled concrete aggregates and rubber granules
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DOI: 10.1016/j.jclepro.2018.02.074
Abstract: Abstract In recent decades, self-compacting concrete has slowly gained popularity since its inception due to its unique ability to fill formworks with congested steel reinforcement and with little to no use of mechanical compaction required.… read more here.
Keywords: compacting concrete; concrete using; waste; concrete aggregates ... See more keywords
Evaluation of recycled concrete aggregates for their suitability in construction activities: An experimental study.
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DOI: 10.1016/j.wasman.2016.06.008
Abstract: Construction and demolition waste disposal is a major challenge in developing nations due to its ever increasing quantities. In this study, the recycling potential of waste concrete as aggregates in construction activities was studied. The… read more here.
Keywords: construction; waste; construction activities; concrete aggregates ... See more keywords