Relating Seismic Modulus to Strength Parameters of Portland Cement Concrete

Details

• Creators:
  Yuan, D. ; Nazarian, S. ; Perea, A ; Zhang, D.
• Corporate Creators:
  University of Texas at El Paso. Center for Transportation Infrastructure Systems
• Corporate Contributors:
  Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Construction Management Field Tests Laboratory Tests Modulus Of Resilience Nondestructive Tests Pavement Design Portland Cement Concrete Seismicity
• Publication/ Report Number:
  TX FHWA/TX 05/0-1700-8
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Texas
• Edition:
  9/02- 8/04
• Corporate Publisher:
  University of Texas at El Paso. Center for Transportation Infrastructure Systems
• Abstract:
  Impacts of mix design and curing regime on the development of strength and modulus parameters of portland cement concrete (PCC) were investigated. The feasibility of using seismic nondestructive testing techniques to monitor and predict the strength and modulus development of PCC was enhanced. The seismic modulus can be related to the strength parameters and static modulus obtained from conventional testing on the molded specimens or drilled cores. A database, containing results from about 1200 standard cylinders made from fifteen concrete mixes, has been developed. Preliminary relationships between the seismic modulus and the strength parameters and static modulus are proposed in the basis of the type of coarse aggregate. Unlike a strength-maturity relationship that is usually very specific to a particular mix under a particular curing condition, a seismic modulus-based relationship is mainly affected by the nature of coarse aggregate. The techniques used in this study have shown to be a rapid, simple and economic means for estimating the strength and modulus development of concrete and for determining the time required to open a repaired or newly constructed concrete pavement to traffic. Findings from this study would be useful in the following two ways: I. Improving Rigid Pavement Design: The developed relationships can be incorporated in the design codes such as CRCPII to improve the assumptions with regards to the relationships between the strength and modulus of the concrete in early ages. In that manner, the models that predict several distress types can yield more realistic results. 2. Construction Quality Management: It was found that the strength and the seismic modulus for laboratory-cured specimens are highly correlated. Furthermore, it was demonstrated that such relationships are not significantly impacted by the environmental-related and most material-related parameters. Also it was demonstrated that the seismic moduli obtained from field testing are well-related to the seismic moduli obtained from laboratory testing. Therefore, seismic nondestructive testing (NDT) devices can be utilized for quality control of in situ concrete to minimize coring.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:7fa3ddaaabb8b6a57229b9f1ada2d81f8133a4fd9ebfb204e5fbe745e726d0497959f12a820f93a2928c254134e73cf054dd64c6d63e38c53ae3345837dac6e7
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/86360/dot_86360_DS1.pdf
• File Type:
  [PDF - 3.24 MB ]