ESTIMATED ADHESIVENESS OF ASPHALTIC BITUMEN TO NATURAL AGGREGTES USING STATISTICAL REGRESSION
Published In: 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING
Author(s): DIANA-IOANA MORARIU , DANIEL LEPADATU , DIANA PLIAN , LOREDANA JUDELE
Abstract: Usually the adhesiveness is defined as the capacity of a binder to cover an aggregate without dispersing itself when touching the water or the traffic aggressions. Therefore, the adhesiveness additives are products that improve the adhesiveness of the bitumen to a certain aggregate. The improvement of causeway’s bitumen adhesiveness is becoming a current practice in our country, especially when is used acid (siliceous) aggregate. The used additives – amino derivatives - have a high stocking stability, a low toxicity degree toward the amine, diamine, polyamine-based additives and are liquid products perfectly compatible with all bitumens and easy to use, in comparison to the paste or solid additives, which must be made liquid to be used. The mineralogyc nature of aggregate is, also, very important because the bitumen „prefers” basic aggregates. However, in practice, the most used aggregates for hot (or cold) coating are acid. There is a continuous problem for specialists to find the opt
- Publication Date: 26-Oct-2014
- DOI: 10.15224/978-1-63248-030-9-43
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IS DESIGN GUIDANCE FOR ROADS INCOMPLETE?
Published In: 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING
Author(s): JOHN BOYLE , PHILLIP MILLAR , ROBERT EADIE
Abstract: A consultation on draft high level guidance for road design of streets in town and city centers in Northern Ireland ended in October 2013. The addition to the guidance through this proposal needs examples to allow designers to apply the high level guidance mentioned in practical situations. For mixed use developments in Northern Ireland designers have to apply the Design Manual for Roads and Bridge (DMRB) and seek formal departures and relaxations through the planning service in order to gain approval for proposals for a development. This is an unwieldy process and recognizing this, the authorities in England, Scotland and Wales have moved to provide design guidance. Northern Ireland has therefore fallen behind in in this respect. Seven case studies in the Belfast City Council area which is the largest council in Northern Ireland are used in this paper to provide a gap analysis in the existing legislation and suggest ways the current consultation proposal could be implemented on the gr
- Publication Date: 26-Oct-2014
- DOI: 10.15224/978-1-63248-030-9-41
- Views: 0
- Downloads: 0