Experimental Investigation of use Polypropylene Fibers in Self-Compacting Concrete
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2018 by IJETT Journal|
|Year of Publication : 2018|
|Authors : Hawra Alradhawi
|DOI : 10.14445/22315381/IJETT-V57P207|
Hawra Alradhawi "Reinforcing Smart Home Security System", International Journal of Engineering Trends and Technology (IJETT), V57(1),32-39 March 2018. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
In this study investigates the effects of the use of polypropylene fibers as reinforcement on the mechanical and durability properties of M25 grade self-compacting concrete. Fresh characteristics are evaluated using Vfunnel, V-funnel at T5 Min and L-box tests in the laboratory. The hardened properties are tested under compressive strength after 3, 7, 14, 28 and 56 days, Split tensile strength after (28) days, flexural strength after (28) days, acid attack after (28 and 56) days, water permeability, and rapid chloride penetration. The compressive improved maximum increase was 11.6% by use (12) mm length fibers. The split tensile strength by use polypropylene fibers in self-compacting concrete was improved by maximum 17.8% as compared to without Polypropylene fibers with (12)mm lengths of fibers. Polypropylene fibers give better flexural resistance about 15.5% maximum at (12) mm length fibers, as well improvement in surface porosity and water permeability. The acid attack figures also cripple with used polypropylene fibers but when we look at both the results individually we find that they are very low and faring better except in the rapid chloride penetration. Polypropylene fibers have improved mechanical properties of concrete as well as good performance in the durability of concrete.
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self-compacting concrete; Polypropylene fibers, Compressive strength, Split tensile strength, flexural strength.