The environmental impacts of producing asphalt mixtures with different percentages of asphalt binder replacement (ABR) are assessed using the technique of life cycle assessment (LCA). In this paper, only the material production phase of the pavement life cycle is considered. To improve the quality of the LCA, a regionalized life cycle inventory (LCI) database for the Northern Illinois region is...

This report evaluates the effectiveness of rubber-asphalt and ebonite-asphalt mixes based on a review of published literature and unpublished reports. It discusses in detail various aspects of these mixes, including: diffe ent applications, physical properties, experiences of state highway agencies, and claimed advantages and problems associated with their use. The addition of ground tire rubbe...

Emulsion aggregate mixtures (EAMs) are blends stabilized with an asphalt emulsion for pavement base layer applications. These typically prepared using crushed aggregates and designed primarily a tensile strength-based criteria. Advances in granular material testing technologies have led to the development of advanced resilient response characterization devices such as University Illinois FastCe...

Environmental awareness and budgetary constraints in road construction rehabilitation require innovative at the same time environmentally friendly solutions favor of resource conservation, any type pavement intervention. In meantime, surface interventions severely deteriorated pavements are insufficient, increasing as such recycling potential existing materials Full Depth Reclamation (FDR). Thi...

Reclaimed water is an important resource for irrigation, and exploration in making full use of it is an important way to alleviate water shortage. This paper analyzes the effects of irrigation with reclaimed water through field trials on the content and distribution of heavy metals in both tomatoes and the soil. By exploring the effects of reclaimed water after secondary treatment on the conten...