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Effect of the Interface Moisture Content on the Bond Performance between a Concrete Substrate and a Non-Shrink Cement-Based Grout

Published

Author(s)

Igor de la Varga, Jose Munoz, Dale P. Bentz, Benjamin Graybeal

Abstract

Prefabricated Bridge Element and System (PBES) construction commonly relies on field-cast grout-type materials to complete the connections between precast concrete elements. The interface bond between the grout and the substrate concrete can be a key factor in the long-term durability of the structural system. This paper evaluates bond performance of a non-shrink cementitious grout, and how the supply of extra moisture at the grout-concrete interface affects the bond strength. The results show increased bond strength when extra moisture is provided.
Proceedings Title
2015 National Accelerated Bridge Construction Conference
Conference Dates
December 7-8, 2015
Conference Location
Miami, FL, US

Keywords

Bond strength, grout, interface, moisture, tensile strength

Citation

de la Varga, I. , Munoz, J. , Bentz, D. and Graybeal, B. (2015), Effect of the Interface Moisture Content on the Bond Performance between a Concrete Substrate and a Non-Shrink Cement-Based Grout, 2015 National Accelerated Bridge Construction Conference, Miami, FL, US, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=919054 (Accessed April 17, 2024)
Created December 9, 2015, Updated April 1, 2022