Abstract

Shrinkage-reducing admixture (SRA) is a mitigation strategy against autogenous shrinkage in high-strength concrete (HSC). It acts by reducing the surface tension of the fluid in the pore system of the cement paste. An experimental program was carried out to investigate the influence of SRA on concrete durability, as few studies about this subject have been developed. Its effectiveness in reducing autogenous shrinkage and its influence on compressive strength were also evaluated. The results showed a substantial reduction of autogenous shrinkage due to the presence of the SRA, with a slight reduction on compressive strength (up to 5%). Overall, concrete durability under the action of aggressive agents (such as water, CO2, and chloride ingress) was not influenced by SRA, as verified in the results of chloride penetration, natural carbonation, water permeability, capillary absorption of water, and absorption of water tests.

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 call

Disclaimer: 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.