THE DUCTILE CHARACTERESTICS OF HYBRID FERRO CEMENT SLAB.

This Paper Presents The Ductile Characteristics Of Hybrid Ferro Cement Slab Incorporating Polypropylene Fibers And Gfrp Sheet. A Total Of 9 Slabs Have Been Tested Under Two Point Flexural Loading. The Size Of The Slab Is 1000 Mm (Length) X1000 Mm (Width) X 60 Mm (Thickness). The Parameters Studied in This Investigation Includes the Number of Weld Mesh Layers, Polypropylene Fibers i.e. (0.3%) And Gfrp Sheet. Two Point Loading Test Was Conducted On Slabs And Parameters Such As Ultimate Moment Capacity, Ductility Ratio And Crack Pattern Were Observed. To Extend The Principles Of Reinforced Concrete Design By Using Continuous Steel Reinforcement As The Main Reinforcement To Satisfy Ultimate Stress Limit State And Fibers As A Secondary Reinforcement To Control Cracking And Satisfy The Crack Width Limit State In Service. To Use Polypropylene Fibers Instead Of Steel Fibers, Differently From Most Prior Investigations Were Used. To Study the Influence of Self-compactingconcrete Mixture Used Instead Of Conventionally Vibrated Concrete. From The Test Results It Is Observed That The Compressive Strength At 28 Days Curing Of Hybrid Ferro cement Slab With Polypropylene Fibers Content Of 0.3% Is Increased By 6.34% With Compressive Strength Of Conventional Concrete Plain. From The Studies It Is Observed That the Deformation at Ultimate Load Are High In Case Of Ferro cements With Polypropylene Fibers. The Stiffness Of The Specimens With Zero Layer Weld Mesh Is Lower Than That Of The Specimens With Two Layers And Three Layers Bundled. Further, There Is Reduction In Number Of Cracks With Increase In Fiber Content. From The Test Results It Is Observed That The Ultimate Load Carrying Capacity In Three Layer Weld Mesh Hfs With 0.3% Fiber Content Is Increased By 25% In Comparison With Double Layer Weld Mesh Of Ferro cement Slab Without Gfrp Layer.