Access the full text.
Sign up today, get DeepDyve free for 14 days.
Loading next page...
/lp/springer-journals/influence-of-blends-of-alkali-resistant-fibres-and-polypropylene-ldx4s8UmqH
- Publisher
- Springer Journals
- Copyright
- Copyright © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
- ISSN
- 2365-3159
- eISSN
- 2365-3167
- DOI
- 10.1007/s41024-022-00219-5
- Publisher site
- See Article on Publisher Site
Abstract
Research outcome on merger of discrete short length fibres like steel fibre, polypropylene fibre (PPF), alkali resistant fibre (ARF) etc. to produce fibre reinforced concrete (FRC) gave a momentous thrust to FRC to use it for shrinkage resistance, crack bridging as well as improving the tensile load carrying resilience. Continuous research is going on FRC by incorporation of various size/shape combinations of similar fibre material or combinations of different fibre material to further improve the performance of FRC. The challenge of using combinations of various industrial by products having reactive and slow pozzolanic nature as part replacement of cement to reduce greenhouse gas emissions is also experimented world over for achieving sustainability in concrete construction activities. These pozzolanic materials [supplementary cementitious materials (SCM)] are also useful in proportioning self compacting concrete (SCC) which offer higher quantities of powder size material (0.125 mm size) as required for achieving qualifying characteristics of SCC. Innovations for improving the SCC to use it in fast track construction and repair projects is being made by several researches, by the way of incorporating various reactive material to attain fast setting, early strength and combine different fibres in to the SCC to have resistance to shrinkage, cracks and develop enough tensile strength in early age for opening the structure to users. Hence there exists a vast scope for research in FRC for improvement of performance by the way of incorporation of compatible materials and fibre combinations. In this study two types of hybrid fibre reinforced self compacting concrete were proportioned with part replacement of cement with metakaolin as reactive SCM and ground granulated blast furnace slag as normal reactive SCM. Various combinations of PPF and ARF investigated in SCC mix with a target to achieve 1 day compressive strength of 25 N/mm2 and split tensile strength of 2 N/mm2 for use in fast track construction and repair works. Mechanical strength tests and durability tests at early ages as well as up to 56 days conducted.
Journal
Journal of Building Pathology and Rehabilitation – Springer Journals
Published: Dec 1, 2022
Keywords: Reactive SCMs; GGBFS; Metakaolin; Alkali resistant fibres; Polypropylene fibers