Abstract
The effect of different types of superplasticizer on fresh, rheological and strength properties of self-consolidating concrete (SCC) was investigated. The admixtures had same main chain and same polymer structure but different molecular weight and different side chain density of carboxylic acid groups. Fresh concrete properties were determined by using the slump-flow, V-funnel, slump-flow loss and L-box tests. Besides, the rheological parameters including apparent yield stress and plastic viscosity were measured by using a concrete rheometer. The compressive strength, ultrasonic pulse velocity and dynamic elastic modulus of SCC mixtures were determined at 1, 3, 7 and 28day ages. Test results indicated that V-funnel flow time, plastic viscosity and slump retention of SCC mixtures were affected by the side chains density of polymer considerably. It was observed that the compressive strength of SCC mixtures was also influenced slightly with the incorporation of different types of superplasticizers. The effect was more pronounced at early ages.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.