Experimental Study of Partial Replacement of Cement with GGBS and Silico Manganese with M30 Grade Concrete

Abstract

Cement in concrete is a several disadvantages when used without any replacement to it in concrete such as high carbon footprint high cost of construction, and low tensile strength. To address these materials such as GGBS, and silico manganese can be used, designing concrete mixtures with lower cement content can reduce the carbon print, cost, and potential cracking, resulting in more sustainable, cost effective and durable concrete structures. In our project we are going to use GGBS (Ground granulated blast furnace slag) and silico manganese as a replacement of materials to cement in varying percentage. GGBS and silico manganese cementitious properties and can particularly replace cement in concrete mixtures. It improves the durability, workability, and strength of concrete. GGBS has a lower carbon footprint than traditional cement, making it an environmentally friendly alternative. Silico manganese is the process involves high temperature to melt the raw materials and reduce them to their metallic forms. This project represents the results of an experimental investigations accomplish to understand the suitability of GGBS and Silico manganese on strength of referral concrete M30 Grade concrete was prepared by replacing PART OF 0%, 30%, 40%, 50% (by weight of cement) for GGBS and Silico manganese. Fresh concrete was properties viz. slump cone was carried out. Strength of concrete were determined by performing compressive strength test on (150mm×150mm×150mm) size cubes.

Introduction

I. INTRODUCTION

Concrete has been the major instrument for providing stable and reliable infrastructure since the days of Greek and civilization. Concrete is the most world widely used construction material. The increase in demand of concrete more the new method and materials are being developed for production of concrete. Concrete is a mixture of cement, water, and aggregates with or without chemical admixtures. The most important part of concrete is the cement. Use of cement alone as a binder material produces large heat of hydration.

 A. Ground granulated blast furnace slag (GGBS)

 Partial replacement of cement with ground granulated blast furnace slag (GGBS) is a technique that has gained popularity in the construction industry due to its numerous benefits. GGBS is a by product of iron and steel industry, produced by quenching molten slag from a slag from a blast furnace with water or stream, which results in a granular material. It has cementitious properties and can partially replace Portland cement in concrete mixes.

B. Silico Manganese

Silico manganese, a byproduct of ferroalloys, has been exploded as a potential replacement for cement in concrete mixing due to its pozzolanic properties. When used in concrete, reacts with calcium hydroxide to form calcium silicate hydrate, contributing to the strength and durability of concrete. This substitution can reduce the environmental impact of concrete production by utilizing industrial byproducts and decreasing cement consumption. However careful testing and optimization are necessary to ensure the desired properties of the concrete mix are maintained.

II. REASEARCH ON GGBS & SILICO MANAGNESE

A. Ground granulated blast furnace slag (GGBS)

The use of GGBS in concrete has several advantages. Firstly, it significantly reduces the amount of Portland cement needed in the mix, thus reducing the carbon footprint of concrete production. This is because of the production of port land cement requires high temperatures and releases significant amounts of carbon dioxide in to the atmosphere. By replacing of some of cement with GGBS, the amount of port land cement. GGBS can improves the long-term strength of concrete. This is because it reacts with calcium hydroxide, a by product of the hydration of port land cement, to form additional cementitious compounds. The results increased strength over time, making the concrete more durable and long-lasting.

B. Silico manganese

The partial replacement of cement with silico manganese offers several advantages in terms of cost effectiveness, mechanical properties enhancement, sustainability, workability, mitigation of alkali-silica reaction, reduction of heat of hydration. However, its essential to consider factors such as proper mix design, material compatibility, and local regulations when incorporating silico manganese into concrete mixes.

III. MATERIALS USED

Materials that are used for making concrete for this study were tested before casting the specimen. The preliminary tests used for making concrete for this study were tested before casting the specimen. The preliminary tests were conducted for the following materials.

1. Cement

Table No.1 properties of cement

2. Fine aggregate

Table No.2 properties of F.A

   3. Coarse aggregate

Table No.3 properties of C.A

  4. Ground granulated blast furnace slag (GGBS)

Table No.4 properties of GGBS

5. Silico manganese

Table No.5 properties of silico manganese

6. Mix Design

Table No.6 mix design:

IV. RESULTS AND DISCUSSIONS

In this research we present found on to investigate the strength properties of GGBS and Silico manganese. The partial replacement of GGBS and silico replacement of GGBS and silico manganese with cement is performed in this experiment.  M30 grade of concrete is used in these experimental 30%, 40%, 50% of GGBS and Silico manganese were used as an cement replacement. The specimens for testing were prepared the cubes are cured for 7&28 days. 

Compressive strength

Average of 3 cubes formula:

Compressive strength = Load / Area of cube (150*150mm²)

1. Conventional concrete:

Compressive strength is calculated in N/Mm²

2. 30% GGBS and Silico manganese:

Compressive strength is calculated in N/Mm²

3. 40% GGBS and silico manganese:

Compressive strength is calculated in N/Mm²

4. 50% GGBS and silico manganese:

Compressive strength is calculated in N/Mm²

VI.  ACKNOWLEDGMENT

I am profoundly thankful to Ms. M. Himangeswari, Assistant professor in the department of Civil Engineering, Dr. Lankapalli Bullayya college of Engineering, Visakhapatnam, India, who as served as my mentor and guide, advising me on how to accomplish my goals. 

Conclusion

From the above study, we conclude the compressive strength of concrete cubes has gradually increased up to addition of 50% of GGBS & Silico manganese. Compared to compressive strengths of 30%, 40% and 50% of GGBS and silico manganese the compressive strength of conventional concrete is less. As per our study, the 7 days of compressive strength of 30%, 40% of GGBS is equal to nearly 28 days of compressive strength conventional concrete. The gain in the compressive strength is improve depending upon the replacement of fly-ash based cement with GGBS and Silico manganese. The cement replacement of GGBS and silico manganese generally improves bond strength. The increase in the individual properties depends upon the replacement level. The GGBS and Silico manganese in concrete can allow major carbon dioxide reduction and also increases the service life of concrete structures. Concrete made with GGBS and Silico manganese cements are more slowly as compared to ordinary concrete and its setting time depends upon the amount of GGBS and Silico manganese in the cementitious materials, but it endures to gain strength over a longer period.

References

[1] Quaid johar B, Kuldeep Dabhekar (2016): Effect of cementitious waste material (GGBS) on concrete as a replacement in cement. [2] Amunuri S Kumar, P. Indra Teja, G. Nikhil, Ramachandar D (2017): Strength development of concrete by replacing cement with ground granulated blast furnace slag (GGBS). [3] B.K Varun, Harish B A (2018): Effect of addition of fly ash and GGBS on cement concrete in fresh and hardened state. [4] Gopi reddy Madan and G. Nikhil, Ramachander D (2019): Experimental investigation of concrete with GGBSs, Quarry Dust and Steel Slag Waste. [5] Sharma & seema (2012) Examined the effect of partial replacement of silico manganese on compressive strength of M30 Grade of concrete with w/c ratio as 0.5 and percentage replacement was 0%, 10%, 20% cement replacement by a silico manganese eat all age levels (i.e. 24 hours,7,14,28 days). [6] Ghutke & Bhandari (2014): Examine the influence of silico manganese on concrete. Results showed that the silico manganese is a good replacement of cement. The rate of strength gain in silico manganese concrete is high.

Copyright

Copyright © 2024 M. Himangeswari, Ch. Revathi, K. T Rajkumar, G. Hemanth Kumar, N. Jai Ram, Y. Vasanthi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.