Analysis of Action of Polypropylene Fiber on M-30 Concrete by Supplementing Cement with Fly ash and

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IJIRST –International Journal for Innovative Research in Science & Technology| Volume 4 | Issue 3 | August 2017 ISSN (online): 2349-6010

Analysis of Action of Polypropylene Fiber on M30 Concrete by Supplementing Cement with Fly Ash and GGBS Poornima M Reddy PG Student Department of Construction Technology Visvesvaraya Technological University ,Centre for PG studies, Regional Office, Kalaburagi Karnataka, India

Dr. Shreenivas Reddy Shahapue Professor and Course Coordinator Department of Construction Technology Visvesvaraya Technological University ,Centre for PG studies, Regional Office, Kalaburagi Karnataka, India

Maneeth P D Professor Department of Construction Technology Visvesvaraya Technological University ,Centre for PG studies, Regional Office, Kalaburagi Karnataka, India

Brijbhushan S Professor Department of Construction Technology Visvesvaraya Technological University ,Centre for PG studies, Regional Office, Kalaburagi Karnataka, India

Abstract The paper deals with the effects of addition of various proportions of polypropylene fibers on the properties of concrete. Main objectives of this experimental investigation is to characterize the selected mechanical properties of PPFRC and to study the effect of volume fraction of (PPF). The present dissertation work is carried out with M30 grade concrete with w/c ratio of 0.363. Cement is replaced by 20% of fly ash and 10% of GGBS. Polypropylene fibers are added by 0%, 0.50%, 1.00%, 1.50% & 2.00% of volume fraction. For all mixes compressive, split tensile, flexural tests are carried out and they are compared with conventional concrete. Keywords: Polypropylene fiber, fly ash, ground granulated blast slag, compressive strength, split tensile strength, flexural strength _______________________________________________________________________________________________________ I.

INTRODUCTION

Concrete has become world’s most widely used construction material after water, because of its versatility, durability, sustainability and economy. As the Concrete is a brittle in nature that performs well in compression, but it is less effective in tension. To overcome this problem Reinforcement is used in concrete. Various types of fibers are used to reinforce concrete which enhances durability and strength. Polypropylene is one of the least expensive and generously accessible polymers. Polypropylene filaments are NonMagnetic, rust free, Alkali safe, sheltered and simple to utilize. Introduction of polypropylene fiber has become a good approach to meet the present demand of construction industry as these fibers are chemically inert and have hydrophobic surface, use of such material proves to be beneficial. II. EXPERIMENTAL PROGRAM Materials Cement: Cement is the basic binding material used to bind the aggregates in the matrix of Concrete.The cement used was locally available 53 Grade.The cement has a specific gravity of 3.12 with initial and final setting times 45 and 360 minutes respectively. And has fineness 6%. Flyash and GGBS: In this experimental program class F fly ash is used which has pozzolnic properties. In this review 20% of cement is supplanted with fly cinder which has specific gravity about 2.08. GGBS is residue of steel and iron producing industry.10% of the cement is replaced by ggbs in the present experiment. Specific gravity is 2.9. Aggregates: In the current investigations, easily procured crushed aggregates (basalts stone) of 20 and 10 mm down of 60% and 40% were used as coarse aggregates respectively. The specific gravity was 2.74. Locally accessible great quality stream sand is utilized as fine aggregate. Zone-II Fine aggregate is utilized in this experimental work having specific gravity is 2.62.

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