Effect of Grey and White Portland Cement Fillers on Flexural and Shear Strength of GFRP Composite Material

D Harsha Vardhan,D Sai Chaithanya Kishore,Gujjala Raghavendra,K Manohar Reddy,Y Santhosh Kumar Reddy,Ramesh Rudrapati,Samson Jerold Samuel Chelladurai

doi:10.1155/2021/9586474

D Harsha Vardhan, D Sai Chaithanya Kishore + Show 5 more

https://doi.org/10.1155/2021/9586474

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Abstract

The mechanical behaviour of glass fiber reinforced polymer (GFRP) composite depends on the type of matrix, filler, and fiber architecture. In order to develop high-strength polymer matrix composites, the composites containing 5%, 10%, and 15% each of Portland grey and white cement filler are prepared by uniformly mixing the epoxy and filler materials, followed by casting by hand layup technique. The flexural and shear test is performed in accordance with ASTM 790 and ASTM D5379, respectively. It has been found that the values of shear strength, flexural strength, and modulus of elasticity vary with the increasing amount of cement component in the polymer. In addition, for a given percentage of the components of the cementitious filler, the values of the mechanical strength of the composites that contain white cement are higher than those of the composites that contain grey cement filler. Damage to composites has been found to involve fiber breakage and delamination primarily.

Highlights

Academic Editor: Samson Jerold Samuel Chelladurai e mechanical behaviour of glass fiber reinforced polymer (GFRP) composite depends on the type of matrix, filler, and fiber architecture
In order to develop high-strength polymer matrix composites, the composites containing 5%, 10%, and 15% each of Portland grey and white cement filler are prepared by uniformly mixing the epoxy and filler materials, followed by casting by hand layup technique. e flexural and shear test is performed in accordance with ASTM 790 and ASTM D5379, respectively
Cement is a composition of various elements such as limestone or calcium oxide (CaO), silicon dioxide (SiO2), aluminum oxide (Al2O3), iron oxide (Fe2O3), magnesium oxide (MgO), and sulphur trioxide (SO3) and other insignificant elements for the formation of compounds

Summary

Introduction

Academic Editor: Samson Jerold Samuel Chelladurai e mechanical behaviour of glass fiber reinforced polymer (GFRP) composite depends on the type of matrix, filler, and fiber architecture. In order to develop high-strength polymer matrix composites, the composites containing 5%, 10%, and 15% each of Portland grey and white cement filler are prepared by uniformly mixing the epoxy and filler materials, followed by casting by hand layup technique. For a given percentage of the components of the cementitious filler, the values of the mechanical strength of the composites that contain white cement are higher than those of the composites that contain grey cement filler. A very less amount of research was carried out on the use of compound fillers such as cement into the composite materials as a filler material and the studies reveal that the cement fillers help in the improvisation of the mechanical properties. Advances in Materials Science and Engineering amount of iron oxide and manganese oxide compared to white cement. e average granular size of white cement is smaller S

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