International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 09 | Sep 2022
p-ISSN: 2395-0072
www.irjet.net
Use of Silica Fume in Concrete Partially Replacement By Cement” -A REVIEW Ankit Chorasia1, Rahul Sharma2, Kamata Singh3 Scholar Professor Radharaman Engineering College 3Assistant Professor Vaishnavi institute of technology & Science , Bhopal mp , India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - In the recent past, there have been considerable attempts for improving the properties of concrete with respect to 2Assistant
1M.tech
strength and durability, especially in aggressive environments. High performance concrete appears to be better choice for a strong and durable structure. A large amount of byproduct or wastes such as fly-ash, copper slag, silica fume etc. Are generated by industries, which causes environmental as well as health problems due to dumping and disposal. Proper introduction of silica fume in concrete improves both the mechanical and durability characteristics of the concrete. Silica fume is an outcome of producing silicon by the highly purity quartz in a submerged arc electric furnace heated at 2000 0c with coal coke as fuel.
Key Words: Silica-fume, Cement, pozzlanic, concrete, compressive strength test, flexural strength test, tensile test. 1. INTRODUCTION Now a day’s concrete is widely used in all types of construction work .in concrete the main constitute material is cement, sand and aggregate. We are a civil engineer so our main purpose is to how to give high quality work with limited resources such as material and manpower. we use silica fume in concrete to enhance durability and mechanical properties silica fume particle size is very small that fills in the small pores that be improve workability in concrete and reduce permeability silica fume particles are spherically shaped size between 0.1-0.3 um Silica fume is also known as micro silica..its colour is light to dark gray constitute material 85% of amorphous particle. Silicafume particle size is very fine as compare to 1/50thtimes of ordinary Portland cement particle. It also protects the reinforcement in concrete from the corrosion especially in salty environment. Silica fume is fill the voids of aggregate and also fills the small pores of cement. Specific surface area of silica fume is 1500030000 m2/kg. c Specific gravity of silica fume 2.2 to 2.3
2. METHODOLOGY CONSIDERED Silica fume is an brilliant admixture for existing as it leads to improved manufacturing property. It will lessen thermal furious cause by the warmth of strengthen hydration, advance toughness to harass by sulphate and acid waters, and augment potency. 2.1 SILICA FUME Silica fume, a by-product of the ferrosilicon manufacturing, is a exceedingly pozzolanic textile that is used to increase unthinking and resilience property of material. It possibly will be supplementary straight to actual as an personality constituent or in a bring together of Portland bolster and silica exude. The program consists of casting and testing of total 17 cubes, 17 beams and 17 cylinders specimens. The specimen of standard cube of 150mm x 150mm x 150mm, standard beam of 150mmx500mmx700mm and standard cylinder of 150 mm diameter and 300 mm height were casted with and without silica fume. Compressive testing machine (CTM) is used to test the specimens. Concrete cubes 150x150 x150mm were casted and tested at 7,14,and 28 days as per IS: 516 – 1959 and compressive strength is reported. Concrete cylinders of size 150 mm diameter and 300 mm height were casted and tested at 28 day as per IS: 58161999 and split tensile strength is reported. Concrete beams of size 150 x150 x700 mm were casted and tested for 28 days as per IS: 516 - 1959 and flexural strength is reported.
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