Abstract

Performance of Slurry Infiltrated Fibrous Concrete (Sifcon) with Silica Fume

Author(s): D. Elavarasi and K. Saravana Raja Mohan

SIFCON in our country in the construction of several structures that demand high standards of strength coupled with superior performance and durability. SIFCON possesses several desirable properties such as high strength and ductility. It also reveals a very high degree of ductility as a result of which it has superior stability under dynamic, fatigue and repeated loading. The main objective of this study is to determine the effect of silica fume in slurry infiltrated fibrous concrete on compressive strength, split tensile strength, flexural strength and toughness. Experimental programme was carried out to study the performance of SIFCON containing 10% of fibre content with different percentage of silica fume (5%, 10%, 15%, 20% and 25%) partially replaced by cement on compressive strength and split tensile strength. From the test results 15% of silica fume showed that optimum value in compression and tension. Compared to all other replacement level and FRC mix. Flexural test of reinforced SIFCON beam specimen of size 1.2 x 0.1 x 0.2 m containing optimum 15% of silica fume with various percentage of fibre content (6%, 8% and 10%) were tested under flexure to enhance the performance of silica fume based slurry infiltrated fibrous concrete. The results showed that SIFCON beam contains 10% fibre content exhibits excellent energy absorption and ductility characteristics among all other SIFCON and FRC specimens.