Abstract
Efforts to prevent alkali-silica reactions (ASR) in Virginia transportation facilities have focused on the selection of ASR-resistant cementitious materials. Initial evaluations of binary systems of ordinary portland cement (OPC) with pozzolans or slag in mortars with Pyrex glass aggregate suggested that high replacement levels of OPC with fly ash or slag could be necessary for ASR resistance. Concern that such high replacement levels could negatively impact early strengths prompted evaluations of concretes with construction aggregates. Concretes were produced with binary and ternary (OPC + silica fume + fly ash or slag) systems and evaluated for strength, transport properties, and ASR resistance. The results illustrate how ternary blends can be used to reduce transport properties or increase ASR resistance of concretes with low replacement levels of fly ash or slag and thus avoid low early strength problems.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
