ASTM International has proposed three new standards covering sustainable materials for the road and paving industry, namely:
- ASTM WK46376, Specification for Blast Furnace and Steel Furnace Slag as Produced During the Manufacture of Iron and Steel.
- ASTM WK46377, Guide for the Use of Recycled Asphalt Shingles (RAS) in Bituminous Mixtures.
- ASTM WK46379, Guide for the Use of Recycled Asphalt Pavement (RAP) in Bituminous Mixtures.
These materials are suitable for use in general pavement construction, such as car parks and driveways.
“There are several different types of iron and steel slag,” explains John Yzenas, Director of Technical Services at Edward C. Levy Co and ASTM member. “ASTM WK46376 will provide guidance in characterising each of these materials for various applications.”
Yzenas notes that while many departments of transportation provide specifications for the products covered by ASTM WK46377 and ASTM WK46379, there is currently little guidance available for non-agency users. The proposed standards will provide this needed information, which can be used by small agencies for cities/municipalities, as well as contractors and engineers, among others.
Subcommittee D04.99 on Sustainable Asphalt Pavement Materials and Construction, part of ASTM International Committee D04 on Road and Paving Materials, is taking the lead on the development of the proposed standards and welcomes participation from interested parties. The subcommittee is also looking for other sustainable materials with potential for use in road and paving that could be covered by ASTM standards.
In addition to these three proposed standards, D04.99 also welcomes participation in the development of:
- ASTM WK23047, Guide for Existing Standards Relating to Sustainable Construction Materials.
- ASTM WK24622, Guide for the Use of Foundry Sand in Bituminous Mixtures.
For more information, visit www.astm.org.
Adapted from press release by Katherine Guenioui
Read the article online at: https://www.worldcement.com/the-americas/23092014/astm-international-standards-will-cover-sustainable-road-and-paving-materials-535/