Skip to main content

Evaluation of Sewage Sludge Ash in Asphalt Concrete Using Disk-Shaped Compact Tension Testing

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

or click here to sign up for a free trial


A study was conducted evaluating the effects of sewage sludge ash (SSA) in hot mix asphalt (HMA) as mineral filler and/or as a fine aggregate substitute. For the purposes of this study, 0% and 2% SSA by weight of aggregates were used in HMA samples. Disk-shaped compact tension testing (DCT) was utilized to determine the fracture energy of the HMA samples. Through the DCT test method, it was found that the fracture energy for samples containing 0% and 2% SSA by weight of aggregates were 3.41 J/m2 and 3.15 J/m2 respectively. From this testing it was concluded that the HMA with 2% SSA shows similar performance as that of 0% SSA. Since the performance of the HMA does not drop with addition of 2% SSA, future studies could be conducted analyzing the effects of higher percentages of SSA, which could significantly reduce the amount of raw materials required in construction.

Keywords: Sewage sludge ash; asphalt concrete; disk-shaped compact tension test; fine aggregate substitute; fracture energy; hot mix asphalt; mineral filler

Document Type: Research Article


Publication date: January 1, 2009

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Ingenta Connect is not responsible for the content or availability of external websites

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more