This text considers the extent to which waste materials and industrial by-products can be used in road construction projects in place of the natural materials traditionally used. It brings together a listing of all the available waste material products, and explores their potential as both technical and economical alternatives to natural materials.

This synthesis will be of interest to administrators and policy makers; pavement, material, geotechnical, and environmental engineers; and maintenance and construction professionals involved with highway design and construction issues. Information is provided on the technical, economic, and environmental aspects (including legislative and regulatory considerations) of recycling and using waste materials and by-products in highway construction. The quantities, characteristics, possible uses, current and past research activities, and actual highway construction use of each waste material or by-product is provided. This information, based on a review of nearly 1,000 references and on responses to a 1991 survey (updated in 1993), is classified into four broad categories based on source: agricultural, domestic, industrial, and mineral wastes. A Technical Appendix to this document containing an extensive bibliography, supporting information, and details regarding the use of selected waste materials and by-products is available separately from the Transportation Research Board.

Volume 2: Risk Analysis. This 3-volume reference presents the latest findings in impact assessment of recycled hazardous waste materials on surface and ground waters. Topics covered include chemodynamics, toxicology, modeling and information systems. The book serves as a practical guide for the monitoring, design, management, or conduct of environmental impact assessment. Each volume contains the table of contents of all volumes.

The amount and variety of waste that humanity dumps in landfill sites is nothing short of a scandal, believes Rafat Siddique, of Deemed University in Patiala, India. Instead, we ought to be building new homes out of it! Siddique shows in this important book that many non-hazardous waste materials and by-products which are landfilled, can in fact be used in making concrete and similar construction materials.

Waste Materials in Construction contains papers from the first international conference on the environmental implications of construction with waste materials held in Maastricht in November, 1991. The three key themes of the conference are technical options for the application of waste materials in products for the construction industry, the resulting chemical and environmental aspects thereof, and legislation policies as they pertain to waste management. There has been a great deal of laboratory testing carried out in several countries on the impact of waste-derived products on the environment since most of these products are used in close contact with the soil ( eg. road construction). There is however, no consensus as to the methodologies possible for assessing the environmental behaviour of waste residue and the consequences of using them nor for developing standards to ensure environmentally safe re-use. The first half of the conference addresses this problem of lack of consensus. The second half deals with technical solutions and procedures to use waste materials for the production of construction materials.