Abstract
In this paper, we developed a novel hybrid fiber reinforced cementitious composites (HFRCCs) using steel fibers, polyvinyl alcohol (PVA) fibers and calcium carbonate whisker (CW) with high temperature resistance and cost-effectiveness. Mechanical and physical responses of HFRCCs after exposure to high temperature and roles of different fibers were particularly studied. The results showed that partially replacing PVA fibers by CW could reduce the deterioration of strengths and flexural toughness of HFRCCs before 600 °C because of significant nucleation effect and restraining cracking of CW. PVA fibers would melt above 200 °C and thus deteriorated the flexural and splitting tensile strengths, but less effective to compressive strengths. Steel fiber was most effective to increase the residual mechanical properties among these fibers because of its higher thermostability and strong bond with matrix. Generally, high temperature deteriorated the matrix and adversely affected the quality of fibers, which was mainly related to the different thermostability between fibers.
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.
