This paper examines the merits of using recycled polyethylene terephthalate (PET) in bitumen to improve short and long-term aging bituminous composites used roadway constructions. A concern with PET is its low compatibility leading segregation; here, we functionalized waste cooking oil enhance bitumen. We then studied efficacy delay composites. To do so, particles treated vegetable non-treated ...

Wax-based additives can be added to crumb rubber modified bitumen (CRMB) at different stages enhance the workability. This study aims optimize preparation procedure by investigating effects of on rheological properties CRMB containing wax-based and interaction mechanism. Rubber swelling tests under various conditions were conducted examine temperature process. Rheological thermal characterizati...

Palm oil clinker (POC) is a non-biodegradable palm mill by-product typically discarded in dumpsites. This study analyzed the performance of POC powder (POCF) as bitumen modifier terms conventional and engineering properties asphalt mixture. For study, base 60/70 penetration grade was utilized different POCF dosages (0, 2, 4, 6, 8% by weight bitumen) were added. The effectively modified with the...

The rapid economic and population growth, increase in constructions, a small selection of appropriate soil resources Kuwait have made it necessary to research stabilization methods because the existing soils are currently unsuitable their natural conditions. In this study, consolidation characteristics sabkha samples southern mixed with 0%, 4%, 8%, 10% bitumen respect dry weight were investigat...

To obtain road bitumen with improved temperature and fatigue resistance, polymers and/or rubbers could be added to it. A particularly suitable polymer for modification is styrene-butadiene-styrene (SBS) copolymer but limited information available about the ageing behaviour of modified binders. In this work, two neat bitumens, different penetration grades, SBS-modified containing SBS amounts, we...

Objectives: To develop an optimum bituminous mix by studying the properties of construction demolition waste aggregate (CDWA) and plastic as a partial replacement natural coarse bitumen. The performance strength conventional modified were studied using marshall stability test. Methods: Construction is produced crushing screening old concrete from waste, which then used for aggregates in pavemen...

The asphalt industry is constantly working to enhance the performances of materials, introducing innovative and more sustainable solutions. In this context, incorporation such as additives, polymers, used improve properties neat bitumen. This leads even complex bituminous binders, raising question, are current specifications test methods appropriate for materials? To deal with this, RILEM Techn...

Some substances are familiar only to those who work in certain industries. Bitumen is something that we have all seen applied in road repair, and we may be aware of less obvious uses. Studies on it are frequently reported in this journal, often with emphasis on polyaromatic hydrocarbon exposure (e.g. Burstyn et al., 2002; McClean et al., 2004a,b; Väänänen et al., 2005). In June 2006, bitumen is...