Effect of Ultra Fine Slag Replacement on Durability and Mechanical Properties of High Strength Concrete (original) (raw)
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IRJET, 2022
Concrete is one of the most versatile construction materials used around the world. However, the production of concrete leads to the emission of massive amounts of carbon dioxide into the atmosphere, thus affecting the environment. One of the best alternatives to create environment-friendly construction materials is to replace cement with an industrial by-product, i.e., Ground Granulated Blast Furnace Slag (GGBS). GGBS is produced during the manufacturing of iron. This study aims to examine the usage of GGBS in concrete as a partial replacement material for cement. The literature shows that GGBS improves the properties of concrete at later ages, subject to replacement level.
A Comprehensive Review on the Ground Granulated Blast Furnace Slag (GGBS) in Concrete Production
Sustainability
In the last few decades, the concrete industry has been massively expanded with the adoption of various kinds of binding materials. As a substitute to cement and in an effort to relieve ecofriendly difficulties linked with cement creation, the utilization of industrial waste as cementitious material can sharply reduce the amount of trash disposed of in lakes and landfills. With respect to the mechanical properties, durability and thermal behavior, ground-granulated blast-furnace slag (GGBS) delineates a rational way to develop sustainable cement and concrete. Apart from environmental benefits, the replacement of cement by GGBS illustrates an adequate way to mitigate the economic impact. Although many researchers concentrate on utilizing GGBS in concrete production, knowledge is scattered, and additional research is needed to better understand relationships among a wide spectrum of key questions and to more accurately determine these preliminary findings. This work aims to shed some ...
Journal of Nanomaterials, HINDAWI (SCI, SCOPUS, Web of Science), 2022
Utilization of various mineral admixtures in producing mortar decreases the porosity and capillarity, hence improves the durability in opposition to water and competitive solutions. In this research work, Ground Granulated Blast Furnace Slag is used to replace 30 percent, 60 percent, and 70% of ordinary Portland cement (OPC) (GGBFS). Mechanical property (compressive strength) and durability properties (permeability, porosity, and sorptivity) of high-performance concrete (HPC) are tested. Water permeability of M85 is measured using three cell permeability apparatus. Compressive strength, porosity, and sorptivity of the same mixes are also found. According to the test results of HPC, 30% replacement level of GGBFS gives higher compressive strength than 60% and 70% replacement levels of GGBFS. An equation is developed for permeability of HPC based on mechanical strength and porosity. It is found that coefficient of permeability of water for HPC mixes ranges from 5.1 × 10-11 cm/sec to 7.8 × 10-11 cm/sec. It is concluded that 30% GGBFS used in HPC produces less porosity, less permeability, and less sorptivity than compared to other replacement levels.
Ordinary Portland cement is one of the main ingredients used for the production of concrete. Unfortunately, production of cement involves emission of large amounts of carbon-dioxide gas into the atmosphere, a major contributor for green house effect and global warming. Hence, it is inevitable either to search for another material or partially replace it by some other material. Ground Granulated Blast Furnace Slag is a by-product from the blast-furnace of iron and it is very beneficial in the concrete production. The present paper reviews the literature related to the utilization and efficiency of GGBFS on the properties of concrete. Various properties of partially replaced GGBFS concrete were studied with the help of a number of journals which include compressive strength, split tensile strength, flexural strength, workability, electrical conductivity, resistance against chloride and sulphate attack. The study revealed the properties, performance and applications of GGBFS concrete in the real world. Hence, GGBFS concrete can be used as a building material in an effective way and it is one of the ways to reduce the dumping of GGBFS in environment.
" Ground Granulated Blast Slag (GGBS) In Concrete – A Review "
Concrete is a mixture of cement, fine aggregate, coarse aggregate and water. Concrete plays a vital role in the development of infrastructure Viz., buildings, industrial structures, bridges and highways etc. leading to utilization of large quantity of concrete. On the other side, cost of concrete is attributed to the cost of its ingredients which is scarce and expensive, this leading to usage of economically alternative materials in its production. This requirement is drawn the attention of investigators to explore new replacements of ingredients of concrete. The present technical report focuses on investigating characteristics of concrete with partial replacement of cement with Ground Granulated Blast furnace Slag (GGBS). The topic deals with the usage of GGBS and advantages as well as disadvantages in using it in concrete. This usage of GGBS serves as replacement to already depleting conventional building materials and the recent years and also as being a by product it serves as an Eco Friendly way of utilizing the product without dumping it on ground.
This paper reports the effect of high volume of GGBS on the properties of structural concrete. In this study, GGBS is physically and chemically characterized and partially replaced in the ratio of 10% to 90% by weight of cement. The fresh properties of GGBS concrete like slump test and hardened properties like compressive strength, Split tensile strength, Modulus of Elasticity are carried out. In addition to this the carbon foot prints are also calculated and the savings per capita per year is determined for reduction of usage of cement. The test results indicated that fresh and hardened properties of the GGBS concrete increases as the percentage of replacement of GGBS increases up to certain extent.
Experimental study on Strength Granulated blast furnace slag(GGBS) concrete Mix 50
The environment is being degraded due to the activities of human beings which are necessitated by the construction field (buildings, road, canals, dams, etc.), which is fast depleting the natural virgin sand lining the river bed. As a result ther need to find an alternate material, which is considered to be a waste product to replace these materials because the disposal the waste product such as GGBS. A twofold compensate on towards the conservation of environment takes place when a w materials such as GGBS is used for construction purpose. Thus, it is imperative that more studies and experiments be conducte on such waste products which serve as viable replacement for natural materials. The current paper focus mainly on the experimental findings of strength and durability of M50 grade concrete with partial replacement of GGBS.
Journal of Scientific Research and Reports, 2021
Cement manufacture depletes natural resources, requires significant energy usage, and emits large quantities of greenhouse gases. Roughly one tonne of carbon dioxide is released by ordinary Portland cement, which is roughly 7% of global carbon dioxide generation. In concrete production GGBS can be a partial alternative of cement. GGBS is produced by finely grinding of molten slag generated by the process of extraction of iron from ore. In this study the concrete properties incorporating GGBS is reviewed. The hardened properties of concrete incorporating GGBS are discussed. The cement replacement of about 35-40% by GGBS in concrete demonstrates various advantages like less heat of hydration, increase in ductility, increase in strength, reduction in carbon emission and better aesthetics. GGBS improves the durability properties of concrete, such as higher resistance to sulphate attack, increased resistance to alkali-silica reaction, reduced chloride ion penetration which enhances corro...
Study of Granulated Blast Furnace Slag as Fine Aggregates in Concrete for Sustainable Infrastructure
Growing environmental restrictions to the exploitation of sand from river beds leads to search for alternatives particularly near the larger metropolitan areas. This has brought in severe strains on the availability of sand forcing the construction industry to look for alternative construction materials without compromising the strength criteria of concrete. Granulated blast furnace slags are one of the promising sustainable solutions as they are obtained as solid wastes generated by industry. Hence it reduces the solid waste disposal problem and other environmental issues. Present experimental work explores the possibility of using GBFS as replacement of natural sand in concrete. In this study an attempt is done to understand the variation in compressive strength of concrete with GBFS content. Along with that cost analysis is also done to suggest the most optimized percentage of GBFS to be used in various conditions.