The Influence of Controlled Permeable Formwork Liner on the Mechanical Properties of Conventional and Self-Compacting Concretes

Author(s): Prof. S. Kothandaraman and S. Kandasamy
Paper category: Proceeding
Book title: International Conference on Advances in Civil Engineering and Sustainable Construction
Editor(s): T.Ch. Madhavi, G. Prabhakar, Santhosh Ram, and P.M. Rameshwaran
Print-ISBN: None
e-ISBN: 978-2-35158-161-2
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 63-68
Total Pages : 6
Language : English

Abstract: Durability of concrete is important parameter for reducing the cost of reconstruction, maintenance and repair of structures. The durability of concrete structures primarily depends on the quality of surface zone of the concrete structures. Controlled permeable formwork (CPF) liner is the technique to produce a high-quality, defect-free and durable concrete surface. This liner allows the mix water and entrapped air to drain out from the concrete surface whilst retaining cement and other fine particles. This ensures reducing the water-cement ratio, enrich of cement content and decrease of surface porosity in the surface zone of the concrete. This paper reports an experimental study carried out to investigate the influence of CPF liner on the mechanical properties of conventional concrete (CC) and self-compacting concrete (SCC). The specimens were prepared against CPF liner and impermeable steel formwork (IMF) and tested at 7 and 28 days. The tests that were carried out include compressive, split tensile and flexural strengths, rebound hammer and abrasion resistance of concrete. The results reveals that the use of CPF liner has significantly improved the tensile strength of CC and SCC and surface hardness (rebound number) has been enhanced to a significant level in both CC and SCC. Further, CPF concrete specimens had better resistance against abrasion when compared to IMF concrete specimens in both CC and
SCC.

Online publication: 2017
Publication type: full_text
Public price (Euros): 0.00