Accelerated loading evaluation of stabilized BCS layers in pavement performance : tech summary.

Details

• Creators:
  Wu, Zhong ; Zhang, Zhongjie ; King, Bill
• Corporate Creators:
  Louisiana Transportation Research Center
• Corporate Contributors:
  Louisiana. Dept. of Transportation and Development ; Louisiana State University (Baton Rouge, La.)
• Subject/TRT Terms:
  • Accelerated tests
  • Deformation
  • Pavement performance
  • Base course (Pavements)
  • Testing
  • Test procedures
  • Evaluation
  • Performance measurement
  • Roads--Louisiana--Base courses--Testing
  • Roads--Louisiana--Base courses--Evaluation
  More +
• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Edition:
  Tech summary.
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  The Louisiana Department of Transportation and Development (LADOTD) began to use blended calcium sulfate (BCS) as ; an alternative base material in the 1990s. Raw BCS base without further chemical stabilization can achieve relatively high ; strength and stiff ness under a dry environment. However, it is associated with severe moisture susceptibility problems ; under a wet environment. Extra moisture in BCS can cause both short-term construction diffi culties and long-term ; performance problems. A previously completed laboratory study conducted at the Louisiana Transportation Research ; Center (LTRC) indicated that chemically stabilized BCS using a grade 120 granulated ground blast furnace slag with or ; without some secondary stabilizers (e.g., Type I portland cement, lime, or Class C fl y ash) can achieve a signifi cantly ; better performance than raw BCS materials in terms of both water resistance and lab-determined compressive strength. ; In order to verify the effi ciency of laboratory derived BCS stabilization schemes and evaluate related fi eld performance ; and economic benefi ts, an accelerated pavement testing (APT) experiment was initiated.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24054/dot_24054_DS1.pdf
• File Type:
  [PDF - 145.56 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:3d58e02ea068567b42a97f8d5655c18e41618834938e5cdd8d86fce9d70cd2564115bb75851dbe0247be0946b0f8c8d6317fd17c84b572d3b780561536e9308e