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Non-destructive evaluation of reclaimed asphalt cement concrete

Latif Al-Mufti, RA and Fried, AN (2016) Non-destructive evaluation of reclaimed asphalt cement concrete. European Journal of Environmental and Civil Engineering, 6. pp. 770-782. ISSN 1964-8189

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Reclaimed asphalt (RA) has been increasingly used as an alternative aggregate in the manufacture of low to medium strength cement concrete. It is the aim here to investigate the behaviour and properties of concrete made with RA, using ultrasonic pulse velocity (UPV). Most previous investigations using UPV have been into gravel concrete starting between 1–7 days and up to 28 days. In this research, the application of UPV has been extended to cement concrete made with RA aggregate at the very early age, taken here as the period starting immediately after concrete mixing and up to 28 days. An early age test system for continuous ultrasonic monitoring of fresh concretes has been used to assess important properties, such as early age strength, using UPV measurements. Concrete mixes with different water/cement ratios (.4–.7) were used. Empirical models have been produced relating compressive strength and UPV for early age RA concrete.

Item Type: Article
Subjects: T Technology > TH Building construction
Divisions: Civil Engineering (merged with Built Env 10 Aug 20)
Publisher: Taylor & Francis
Date Deposited: 25 Sep 2018 11:07
Last Modified: 04 Sep 2021 02:25
DOI or ID number: 10.1080/19648189.2016.1219877
URI: https://researchonline.ljmu.ac.uk/id/eprint/9326
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