Effects of Internal Curing on Inclusion in Prepackaged Cementitious Grout and Ultra-High Performance Concrete Materials

Naveen Saladi (), Igor De la Varga (), Jose F. Munoz, Robert Spragg and Benjamin Graybeal
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Naveen Saladi: SES Group and Associates LLC, Turner-Fairbank Highway Research Center, 6300 Georgetown Pike, McLean, VA 22101, USA
Igor De la Varga: Carbon Cure Technologies, Herndon, VA 20171, USA
Jose F. Munoz: SES Group and Associates LLC, Turner-Fairbank Highway Research Center, 6300 Georgetown Pike, McLean, VA 22101, USA
Robert Spragg: Federal Highway Administration, 1200 New Jersey Avenue SE, Washington, DC 20590, USA
Benjamin Graybeal: Federal Highway Administration, Turner-Fairbank Highway Research Center, 6300 Georgetown Pike, McLean, VA 22101, USA

Sustainability, 2022, vol. 14, issue 20, 1-21

Abstract: Proprietary, prepackaged materials such as some cementitious grouts and ultra-high performance concretes (UHPC) are commonly used in the bridge construction industry due to their convenience and desirable properties. However, due to particularities of their mixture designs, grouts and UHPC are prone to exhibit shrinkage, thus resulting in potential durability issues. This paper describes a step-by-step methodology for including internal curing (IC) in these types of materials, with the main goal of addressing some of their shrinkage and durability issues. A brief analysis of the relative cost implications is also provided, along with a compilation of experimental results to show the effect that IC has on important material properties. The results from this study indicate that the inclusion of IC in cementitious grouts and UHPC has the potential to increase durability, leading to more sustainable bridge structures with longer service lives.

Keywords: cementitious grouts; ultra-high performance concretes; internal curing; bond; cracking; durability (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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