Transport properties and freeze-thaw resistance of mortar mixtures containing recycled concrete and glass aggregates
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Date
2016-11-15
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor & Francis
Abstract
The effects of recycled glass (RG) and recycled concrete (RC) fine aggregates on the compressive strength, ultrasonic pulse velocity, dynamic elastic modulus, transport properties and freeze-thaw resistance of mortar mixture were investigated comparatively. Nine different mortar mixtures were prepared by partial replacement of crushed-limestone fine aggregate with recycled aggregates. Compared to that of the control mixture, the transport properties of RC aggregate-bearing mixtures inversely affected with increasing the replacement level of this aggregate. The opposite results were obtained in RG aggregate-containing mixtures. Frost resistance of mortar mixture improved by using both of the recycled aggregates. Improvement of frost resistance of RC mixtures was attributed to the presence of improved Interfacial transition zone between matrix and coarse aggregate (ITZ) in RC-bearing mixture and to the high number of pores existing in the well-distributed RC aggregates in the mixture. Perhaps, these pores provide additional sites for the water escaped from capillary pores upon ice formation.
Description
Keywords
Engineering, Recycled aggregate, Compressive strength, Transport properties, Durability performance, Waste glass, Durability, Performance, Replacement, Cement, Fresh, Compressive strength, Concrete aggregates, Concrete mixtures, Durability, Elastic moduli, Electron transport properties, Frost resistance, Glass, Lime, Mixtures, Mortar, Recycling, Thawing, Transport properties, Dynamic elastic moduli, Freeze-thaw resistance, Interfacial transition zone, Partial replacement, Recycled aggregates, Recycled concretes, Ultrasonic pulse velocity, Aggregates
Citation
Mardani, A. vd. (2019). ''Transport properties and freeze-thaw resistance of mortar mixtures containing recycled concrete and glass aggregates''. European Journal of Environmental and Civil Engineering, 23(1), 53-69.