International Research Journal of Engineering and Technology (IRJET) Volume: 09 Issue: 05 | May 2022
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e-ISSN: 2395-0056 p-ISSN: 2395-0072
“USE OF SILICA FUME AS A PARTIAL REPLACEMENT OF CEMENT IN CONCRETE” Chirayu Wadile, Prajwal Patil, Samyak Sonawane, Aditya Gaikar, Aryan Gaikar, Chaitanya Khaire. Civil Engineering Student PHCET Rasayani, Maharashtra, India. Prof. Chaitanya Khaire, Dept. of Civil Engineering, PHCET Rasayani, Maharashtra, India. -------------------------------------------------------------------------***-----------------------------------------------------------------------variety of projects because it is cost-effective, durable, ABSTRACT and safe.
In recent years, there are many attempts on improving properties of concrete for more strength and durability. Silica Fume and other industrial hydro-products can be used to improve the strength and water permeability of OPC. In this experiment, we're using silica fume to replace 20, 25, and 30% of the cement. The main goal is to compare the difference between concrete with less percentage of silica fume and high percentage of Silica Fume. Our future goal is to analyze that the concrete with high percentage of silica fume which is of 20% , 25% , 30% will be satisfied with the test performed on it.
BACKGROUND Because of the escalating cost of materials used in concrete and the environmental concern caused by cement manufacturing, several researchers have been attempting to replace the ingredient of concrete with a low-priced, locally accessible alternative. As a result, the special cementitious materials are gaining popularity. The use of additional cementatious material has been significant in the past and may continue to be so in the future.
INTRODUCTION
Smelting silicon metal and ferrosilicon alloy produces silica fume, which is used as a secondary cementing material. It may include more than 85% SiO2. The high amount SiO2 content makes it highly reactive pozzolanic material
High workability, high density, excellent modulus of elasticity, high dimensional stability, superior abrasion and impact resistance, and high strength and cavitation resistance are all reasons for OPC's appeal. To achieve economic advantages with sustainable construction there are a number of cementitious materials like silica fume and fly ash are commonly used in cement production. OPC is often used to mobilise their pozzolanic effect, which increases the strength, workability, durability, fracture resistance, and permeability of the material. "Concrete that fulfils unique performance and homogeneity standards that cannot always be accomplished routinely using ordinary constitutional and typical mixing, putting, and curing methods," according to the American Concrete Institute.
MATERIALS 1. Cement: we used ordinary Portland cement (OPC) in this present study. It is generally created from limestone and was evolved from other forms of hydraulic lime. 2. Aggregate: Construction aggregate is a general term for coarse- to medium-grained particulate construction material.
Silica fume is an oxidised vapour produced in electric furnaces during the formation of silicon metal and ferrosilicon alloy. Silica fume is an ultrafine powder with a surface area of 13,000 to 30,000 m2 per kilogramme with particles that are 100 times smaller than normal cement particles.
3. Silica fume: Xetex industries Pvt. Ltd. , Bhivandi supplied us the silica fume. This research utilized a grey-colored silica fume. 4. Sand: We have used crushed sand in this research.
The majority of the rigorous study is spent on compressive strength and rebound No. though the literature regarding silica fume seems to be reached. It is there for necessary to investigate the strength property like compressive strength and flexural strength test on beam which is characteristic of ordinary Portland cement (OPC). This type of concrete is employed in a
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MIX PROPORTION The materials utilised in this study are readily available in the market. In this study, OPC is employed, which is partially substituted with Silica Fume (up to 20%, 25%, and 30% ). Concrete mix proportion of 1:1:2 by volume was used in this result. The ratio of binding material in
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