Sustainable aggregates production : green applications for aggregate by-products.

Details

• Creators:
  Tutumluer, Erol ; Ozer, Hasan ; Hou, Wenting ; Mwumvaneza, Vincent 
• Corporate Creators:
  University of Illinois at Urbana-Champaign. Department of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Federal Highway Administration ; Illinois. Department of Transportation. Bureau of Materials and Physical Research
• Subject/TRT Terms:
  • Aggregate gradation
  • Quarries
  • Fines (Materials)
  • Waste products (Cargo)
  • Sustainable development
  • Surveys
  • Laboratory studies
  • Recommendations
• Publication/ Report Number:
  FHWA-ICT-15-012;ICT-15-012;UILU-ENG-2015-2015
• Resource Type:
  Tech Report
• Geographical Coverage:
  Illinois
• Corporate Publisher:
  Illinois Center for Transportation
• Abstract:
  Increased emphasis in the construction industry on sustainability and recycling requires production of ; aggregate gradations with lower dust (cleaner aggregates) and smaller maximum sizes—hence, increased ; amount of quarry by-products (QBs). QBs are usually less than 1/4 in. (6 mm) in size. This report provides ; findings of an industry survey conducted among Illinois aggregate producers on the annual production rate, ; excess QBs generated, and current application areas of QBs. In addition, a detailed laboratory study was ; conducted to characterize the engineering properties of QB materials produced in the primary, secondary, ; and tertiary aggregate production stages from four different quarries operating in the State of Illinois. Since ; unconfined compressive strength for QB materials was low (less than 11 psi), chemical admixture ; stabilizers such as Portland cement and Class C fly ash were used to improve the strength properties of ; QB materials. Significant increases in the strength of stabilized QB materials observed may indicate ; suitability of QBs for sustainable pavement applications. Recommendations are made on potential ; strategies to utilize excess fines by incorporating QB materials in pavement construction.
  More +
• Format:
  PDF
• Funding:
  R27-125
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29090/dot_29090_DS1.pdf
• File Type:
  [PDF - 6.55 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:d30d91830618341e0dab120e754126edc3980a07293035b865d9cd1b13650cec55321995e7a9384bb4a0640b7e2b0096dd476ea82b3977bb29d9083f36881fd2