Blast Furnace Slag is produced to meet state specifications for gradation and other key requirements The American Society of Testing and Materials ASTM C 125 Definition of Terms Relating to concrete and concrete Materials defines Blast Furnace Slag as the non metallic product consisting essentially of silicates and aluminosilicates of calcium and other
The fresh pellets were manufactured using WAS ground granulated blast furnace slag GGBFS and ordinary Portland cement OPC and kept in the laboratory conditions at 20 ± 2 °C and 95 ± 5%
The high slag crushing index of coarse aggregate can result in a limit slag content 20% and the concrete strength can decrease with increasing slag rate The lowest concrete strength of less than 30 Mpa appears when the fly ash replacement rate is 40% and the slag replacement rate is 40%
Maximum crushing strength of fly ash furnace slag aggregate with concentration of 8M of alkali activator Age of Maximum crushing strength of individual aggregate MPa curing days Aggregate type Duration minutes 6 mm 8 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 10 10G1 15
TECHNICAL PAPER THE INDIAN CONCRETE JOURNAL JULY 2022 7 the ore and coke ash to form a non metallic product called blast furnace slag [13 14] Based on the period of cooling and hardening
Blast Furnace Slag is produced to meet state specifications for gradation and other key requirements The American Society of Testing and Materials ASTM C 125 Definition of Terms Relating to concrete and concrete Materials defines Blast Furnace Slag as the non metallic product consisting essentially of silicates and aluminosilicates of calcium and other
The similarity between the oxides which may even be present in similar proportions in both EAFS and LD converter slag Linz Donawitz converter slag or BOF slag Basic Oxygen Furnace slag and their common stony gravel presentation might lead to the erroneous impression that they are the same material
Inventory data for the grinding of the granulated blast furnace slag was estimated from data by Heidrich et al 2005 which assumes kWh of electricity and MJ of natural gas combustion 950 kg of granulated blast furnace slag and 50 kg of gypsum per tonne of GGBFS processed The inventory for gypsum mining was taken from AUPLCI
The aim of this research work was the evaluation of the feasibility to utilize industrial by products such as electric arc furnace steel slags for sustainable concrete production The paper evaluated the environmental and mechanical properties of steel slags and concrete respectively Specifically the release of contaminants from steel slags was
1 University of the Philippines Diliman Quezon City corresponding author e mail edclemente Abstract Water quality and treatment are becoming of increasing concern It is important to develop renewable bio coagulants to treat turbid water This study suggests plant based coagulants as substitute for chemical coagulants The plants
When smelting each ton of pig iron approximately 500 kg of blast furnace slag is formed and requires recycling Air cooled blast furnace slag can be used for the manufacture of slag aggregate for
Electric arc furnace EAF slag is a by product of steel production in electric arc furnaces Several studies have tried to demonstrate its suitability in civil engineering application such as in bituminous mixtures and cement based materials due to its good physical chemical and mineralogical properties Particularly the re use as coarse aggregate for concrete
GRANULATED BLAST FURNACE SLAG GBS Blast furnace is an iron making unit which converts iron ore into molten iron through reduction reactions in presence of coke and fluxes In addition to molten iron the furnace generates slags in the range of 250 to 500 kg per tonne of hot metal Slag is
Aggregate is any granular material such as sand gravel crushed stone or iron blast furnace slag It is combined with asphalt cement or Portland cement to form asphalt concrete or cement concrete respectively and is used in subbases and bases of roadway structure drainage structures and concrete blocks The quality of
Concrete is the most widely used construction material due to its wide range of applications and the current global concrete consumption has reached approximately 15 billion tonnes Serres et al 2016; Valipour et al 2014 Concrete production has a significant environmental impact due to high energy consumption and greenhouse gas GHG emissions
The compositions of Ground Granulated Blast Furnace Slag GGBFS varied by 0% 25% 50% 75% with the coarse aggregate composition of 40% against natural aggregate The use of 50% GGBFS gave the
Blast Furnace Slag is produced to meet state specifications for gradation and other key requirements The American Society of Testing and Materials ASTM C 125 Definition of Terms Relating to concrete and concrete Materials defines Blast Furnace Slag as the non metallic product consisting essentially of silicates and aluminosilicates of calcium and other
Concrete is a sustainable and versatile construction material which can produce structures that last for thousands of years Due to the many areas of application concrete is the second most consumed material on Earth only after water with a global production of around billion tons of cement in 2021 Statista 2023 and an annual concrete consumption about 7
Subsequently PCA was used as aggregate to prepare PCEM the related hardened performance energy saving ability and reduction of CO 2 emission were also evaluated The results may provide new choices for low cost energy saving building materials and new approaches for large consumption of expanded titanium bearing blast furnace slag
A mix design procedure for fly ash and ground granulated blast furnace slag based treated recycled aggregate concrete Author links open overlay panel Uma Shankar Biswal Pasla Dinakar They have used processed CRA collected from a recycling plant for their research work They worked at various w/b rations of and to
The blast furnace is generally operated at 1500 °C Controlled mixture of limestone iron ore and coke are fed to the blast furnace Iron and slag are produced in the molten form when limestone iron ore and coke are melted in the blast furnace The slag in the molten form floats on molten iron due to light weight
ORIGIN OF POWER PLANT AGGREGATE Coal fired power plant aggregate is the portion of the ash rejected by the stack and collected at the base as a waste product lvo types of power plant aggregate are produced dry bottom ash and wet bottom boiler slag 1 The term power plant aggregate includes both bottom ash and boiler slag
Granulated Blast Furnace Slag Granulated blast furnace slag is a glassy granular material that varies depending on the chemical composition and method of production from a coarse popcornlike friable structure greater than mm No 4 sieve in diameter to dense sand size grains passing a mm No 4 sieve
The slag is used as an aggregate in construction; however its high crushing and attrition values as well as water absorption exceeding standards need attention especially for load bearing applications like runways and roads [] Slag a by product of metallurgical processes is an environmentally friendly alternative to traditional building materials []