High-strength self-consolidating concrete (SCC) and high-volume fly ash concrete (HVFAC) for infrastructure elements : implementation.

Details

• Creators:
  Myers, John J. ; Hernandez, Eli S. ; Griffin, Alexander ; Alghazali, Hayder
• Corporate Creators:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Corporate Contributors:
  United States. Department of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Bridge construction
  • Self compacting concrete
  • Fly ash
  • Mix design
  • Durability
  • Implementation
  • Cast in place concrete
• Publication/ Report Number:
  NUTC R315
• Resource Type:
  Tech Report
• Geographical Coverage:
  Missouri
• Corporate Publisher:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Abstract:
  Because of its unique nature, high-strength self-consolidating concrete (HS-SCC) has the potential to significantly reduce costs ; associated with transportation-related infrastructure, benefiting both MoDOT and the residents of Missouri. HS-SCC is a highly ; flowable, nonsegregating concrete that can be placed without any mechanical consolidation, and thus has the following advantages ; over conventional concrete: decreased labor and equipment costs during concrete placement, decreased potential for and costs to ; repair honeycombing and voids, increased production rates of precast and cast-in-place (CIP) elements, and improved finish and ; appearance of cast and free concrete surfaces. ; In addition to SCC, innovative materials, such as high volume fly ash concrete (HVFAC), also provide a significant potential to ; produce more cost effective mix designs for CIP concrete. Since the 1930’s, fly ash – a pozzolanic material – has been used as a ; partial replacement of portland cement in concrete to improve the material’s strength and durability, while also limiting the amount of ; early heat generation. From an environmental perspective, replacing cement with fly ash reduces the concrete’s overall carbon ; footprint and diverts an industrial by-product from the solid waste stream (currently, about 40 percent of fly ash is reclaimed for ; beneficial reuse and 60 percent is disposed of in landfills). The objective of this research is to provide an implementation test bed and ; showcase for the use of sustainable and extended service life concrete. ; In this implementation study for Missouri Bridge A7957, a level of 50% fly ash to cement proportions was utilized as well as ; normal strength self-consolidating concrete (NS-SCC) and HS-SCC in the load carrying elements to showcase the use of these ; innovative materials.
  More +
• Format:
  PDF
• Funding:
  DTRT06-G-0014
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27818/dot_27818_DS1.pdf
• File Type:
  [PDF - 7.95 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:0de3344fde97c5d68cf7de6a9f95acab26bc1f35f0095f4799ace6634e9d2a374538b994f13ad9ae71a02ed8a8ec0c9df3d908b206e3d6e9f219e53fe00ff81e