Influence of GGBS on Mechanical Properties of Low Traffic Concrete Paver Blocks (original) (raw)
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RELATION AMONG MECHANICAL PROPERTIES OF GROUND GRANULATED BLAST FURNACE SLAG CONCRETE
Ground granulated blast furnace slag (GGBS) is a well known pozzolanic material. In the present work, an attempt has been made to study the effect of GGBS inclusion on the fresh and hardened concrete properties (workability, compressive strength, flexural strength and split tensile strength), and to develop relationship among the different strength parameters. Eight concrete mixes containing 0, 10, 20, 30, 40, 45, 50 & 55% GGBS (weight basis) as cement (OPC) replacement were prepared to find the optimum replacement level of GGBS. M35 grade concrete with cement content of 460 kg/m 3 was used as a referral concrete. Test specimens were cured in tap water for 7, 28, 56, 90 days after the demoulding for compressive strength, while, the specimen for flexural and split tensile strengths were cured for 28 days only. This study shows that the workability increases with increase in the replacement level. The compressive strength, flexural strength and split tensile strength of concrete mixes increase with GGBS content till an optimum replacement level of 40%. Further addition, beyond this level shows a decrease in strength but still the strengths are generally more than the referral.
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.
2020
In the present study an investigation is made on properties of concrete by partial replacement of cement with Ground Granulated Blast furnace Slag (GGBS) . GGBS is the by-product of iron and steel industry which is produced in large quantities as a solid waste. It is highly cementitious. The replacement percentages of cement with GGBS are 20%, 40% and 60% by weight . And it is mentioned that replacement of 40%-50% with GGBS gives the best result in compressive strength after 28 days. But it can further be optimized with the very sharp and approximate % of GGBS. GGBS is replaced by 40%,42%,44%,46%,48%,50% by weight of cement and then characteristics compressive strength after 28 days is analyzed and then it is compared with conventional normal concrete strength. KeywordsGGBS, Concrete, Compressive strength.
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.
2020
Concrete is a mixture of cement , fine aggregate , coarse aggregate and water , concrete plays a vital role in the development of infrastructure. The utilization of supplementary cementation material is well accepted , since it leads to several possible improvement in the concrete composites, as well as the overall economy. This paper present an experimental investigation carried out to study the effect of ground granulated blast furnace slag (GGBFS) On strength development of mortar and the optimum use of slag in mortar. Cement was partially replaced with seven percentage (40%, 42%, 44%, 46%,48%,50%) of slag by weight . Ordinary Portland cement (OPC) mortar was also prepared as reference mortar. A total of 42 cube and briquet mortar specimens were cast and compressive as well as tensile strength of the mortar specimens were determined at curing age of 7, 14 and 28 days.
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 ...
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.