Abstract: Knowledge of the fatigue characteristic of asphalt mixtures is essential for the design of flexible pavements since fatigue has been identified by researchers as one of the major failure mechanisms in flexible pavements. Information obtained from the laboratory fatigue characterization of such mixtures is normally used for predicting performance in service. While the literature is replete with information about the fatigue performance of hot asphalt mixtures (HMA), not much has been done to ascertain the responses of cold recycled asphalt mixtures which of late are increasingly becoming suitable and sustainable alternatives to HMA due to the energy, cost and environmental benefits they offer. This paper presents the results of laboratory fatigue characterization of cold recycled bituminous emulsion mixtures (CRBEMs) using the indirect tensile fatigue test (ITFT). The results showed among other things that cold recycled asphalt mixtures prepared at a mixing and compaction temperature of

• Publication Date: 17-Nov-2014
• DOI: 10.15224/978-1-63248-054-5-67
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Abstract: This study attempts to shed light into the empirical relationship between energy consumption and economic growth in Sri Lanka (1981-2012) employing the vector error-correction model estimation (VECM). The vector specification includes energy consumption, real GDP and price developments, and the latter was taken to represent a measure of economic efficiency. The empirical evidence suggests that there is a long-run relationship among the three variables, supporting the endogeneity of energy consumption and real output. These findings suggest important policy implications, since the adoption of suitable structural policies aiming at improving economic efficiency can induce energy consumption without impeding economic growth.

• Publication Date: 17-Nov-2014
• DOI: 10.15224/978-1-63248-052-1-78
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