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The use of recycled concrete aggregate (RCA) is recommended based on a review of literature that investigated the properties and characteristics of RCA, the physical properties of fresh and hardened concrete containing RCA, the mechanical behavior of concrete containing RCA, and special considerations for concrete pavements using RCA to achieve suitable(More)
Group work has the potential to be both educationally effective and resource efficient. It provides opportunities to set more integrative assessment tasks whilst also providing opportunities for the students to learn more than they would by simply responding to the coursework briefing sheet. Issues arise, however, with the necessity to individualise the(More)
This report describes the first of three experimental installations of open-graded friction course (OGFC) " quieter pavements " designed to reduce the noise generated at the tire/pavement interface. Experimental sections of OGFC were built using asphalt rubber (AR) and styrene-butadiene-styrene (SBS) polymer modified asphalt binders. A section of(More)
Evaluations of teaching and assessment interventions often focus on pre-and post-intervention changes in examination and/or coursework performance. Whilst these are important indicators in their own right, it is interesting also to review the student view of the intervention. This paper adds a further perspective to the examination performance improvements(More)
Accepting that learning is dialogic necessitates the development of teaching and learning activities that support a learning-conversation. Further, Blended Learning requires learning technologies to support the conventional teaching settings by constructing activities that enhance, rather than simply replace, the conventional teaching settings. Just-in-Time(More)
The performance of pavements constructed using warm mix asphalt (WMA) technology were compared to the performance of conventional hot mix asphalt (HMA) pavements placed on the same project. Measurements of friction resistance, rutting/wear, ride and pavement condition (alligator, longitudinal and transverse cracking) did not show that the WMA either(More)
This document summarizes the acoustic properties and pavement performance of three asphalt quieter pavement projects. Each of the projects included open graded friction course pavement built with sections of crumb rubber and polymer modified asphalt binders. Performance was compared to control sections of HMA Class 1/2 inch. The open graded friction course(More)
This report documents the construction of the first Next Generation Concrete Surface (NGCS) by the Washington State Department of Transportation (WSDOT). A 1,500 foot test section was installed on the eastbound lanes of I-82 near Sunnyside, WA in October of 2010. Baseline measurements of noise, friction, wear and smoothness are reported. The sound intensity(More)
This experimental project is being conducted as a part of WSDOT's effort to produce pavements that reduce the noise generated at the tire/pavement interface. Experimental sections of open-graded friction courses were built using asphalt rubber and SBS modified binders. A section of conventional Class ½ inch hot mix asphalt (HMA) serves as the control(More)