Mechanical and Fresh State Properties of Medium Strength Self-Compacting Concrete (SCC) Containing Polypropylene Fibres

Anas Alalwany,W I Goh,Noridah Mohamad,A A A Samad,M.J Zainorizuan,A Mohd Shalahuddin,R Siti Nazahiyah,O Mohamad Hanifi,L Alvin John Meng Siang,L Yee Yong

doi:10.1051/matecconf/201710301011

Abstract

Due to the rising demand of infrastructure development, concrete has been one of the vital ingredients in this field considering its flexibility to mould any structural shape and design. This paper investigates the effect of adding polypropylene fibres on the mechanical and fresh properties of self-compacting concrete (SCC). The mechanical property tests were conducted on various SCC specimen which include cubes, cylinders and beams to determine its compressive strength, splitting tensile strength and flexural strength of concrete. The workability of self-compacting concrete in terms of viscosity is determined from slump flow test (Diameter and T500), and V-funnel. The results indicated that the addition of polypropylene fibres improved the mechanical properties of SCC at almost every volume fraction considered in this study. It was also observed that the addition of 0.1% fibre significantly enhanced the splitting tensile strength and flexural strength of concrete. Finally, the overall results indicated that introducing fibres to concrete would result in a noticeable decrease in workability and fresh state properties.

Highlights

In response to enhance the ordinary concrete, there is a rising need for further development to self-compacting concrete (SCC)
The spreading range obtained for Mix 2 was within the acceptable range, which is from
The funnel was filled with the concrete and flow time was taken for it to flow through the apparatus

Summary

Introduction

In response to enhance the ordinary concrete, there is a rising need for further development to self-compacting concrete (SCC). In 1988, it was the very first investigation that focused to accomplish concrete structures with high level of durability. SCC is a non-segregated concrete free of air and spaces that adjusts to any formwork [1]. Without such vibration process, it flows constantly by the means of its weight, thoroughly packing up the formwork and accomplishing full compaction status even with a very packed reinforcement. Advantages of SCC include faster construction, reduction in manpower, easier placing, uniform and complete consolidation, better surface finishes, improved durability, increased strength and safer working environment [1]

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Results

Conclusion