Recycled concrete aggregate : field implementation at the Stan Musial Veterans Memorial Bridge.

Details

• Creators:
  Khayat, Kamal H. ; Sadati, Hamed
• 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:
  • Concrete aggregates
  • Recycled materials
  • Rigid pavements
  • Water cement ratio
  • Fly ash
  • Bridge approaches
  • Load tests
  • Literature reviews
  • Mix design
  • Durability
• Publication/ Report Number:
  NUTC R332;Project #00042239
• Resource Type:
  Tech Report
• Geographical Coverage:
  Missouri
• Corporate Publisher:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Abstract:
  The main objective of this research is to evaluate the feasibility of using RCA for concrete production in rigid pavement applications. ; The experimental program was undertaken to investigate the performance of different concrete made with different amounts of RCA, ; water-to-cementitious materials ratios (w/cm), and Class C fly ash contents to develop sustainable concrete designated for rigid ; pavement. The scope of work was implemented to achieve the objective of the research study is presented below: ; Task #1: The purpose of this task is to conduct a literature review of past experience and previous research on RCA. RCA properties ; as well as the behavior of concrete containing RCA, including the fresh and hardened properties (e.g., workability, compressive ; strength, flexural strength, shrinkage), and durability (e.g., freeze-thaw resistance, permeability, scaling). Specifically, the literature ; review focuses on studies that investigated performance of rigid pavement made with partial or full replacement of RCA. ; Task #2: The purpose of this task is to optimize concrete mixtures incorporating various levels of RCA. Various amounts of coarse ; and fine RCA were used as replacements of virgin aggregate. Alternative mixing procedures are used to develop concrete with RCA. ; Task #3: The performance of the optimized concrete mixtures is evaluated in terms of: fresh properties: slump, air content, and ; bleeding; mechanical properties: compressive strength, splitting tensile strength, flexural strength, modulus of elasticity, and ; shrinkage; as well as durability: permeable void volume, absorption, surface electrical resistivity, bulk electrical resistivity, ; freeze/thaw durability, and de-icing salt scaling. Task #4: The proven RCA-made concrete mixtures are then employed into the ; construction of pavement sections of the approach towards the Stan Musial Veterans Memorial Bridge in St. Louis, Missouri. Fresh ; properties of the concrete mixtures are investigated at the job site. In addition, samples are taken to further evaluation of mechanical ; properties and durability of the employed mixtures. Field instrumentation is carried out to monitor the long-term deformation ; characteristics of the pavement sections. Detailed information about the field implementation is presented in Chapter 5 of this report. ; Pavement structure is described in detail in Chapter 6. Task #5: Truck load testing is carried out to evaluate the in-situ performance of ; the pavement sections. Various loading scenarios are considered to monitor the deformation characteristics of the instrumented ; sections under controlled traffic loading
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• Format:
  PDF
• Funding:
  DTRT06-G-0014
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27961/dot_27961_DS1.pdf
• File Type:
  [PDF - 5.32 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:cc0eb1d7ba0bd2de690e806477444a5072b737fa9294cf7a784269747be5ec504430e639f8b27181f974e0d721a33c46017b2ed781210cf09ede11e5dd1be27c