PARTIAL REPLACEMENT OF NATURAL SAND BY GRANULATED BLAST FURNACE SLAG (GBFS) IN FINE AGGREGATE FOR CONCRETE: PRACTICAL APPLICATION IN VIETNAM

2018 ◽  
Author(s):  
Truc Nguyen
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Practical Application ◽  
Natural Sand ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

scholarly journals Utilization of Corn Cob Ash as Fine Aggregate and Ground Granulated Blast Furnace Slag as Cementitious Material in Concrete

Buildings ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 422
Author(s):  
Naraindas Bheel ◽  
Montasir Osman Ahmed Ali ◽  
Yue Liu ◽  
T. Tafsirojjaman ◽  
Paul Awoyera ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Corn Cob ◽  
Recycled Materials ◽  
Granulated Blast Furnace Slag ◽  
Embodied Carbon ◽  
The Impact ◽  
Furnace Slag

Cementitious and recycled materials that have the potential to improve various properties of concrete have attracted the attention of many researchers recently. Different types of cementitious and recycled materials seem to possess certain unique properties to change cement concrete. This experimental study aims to investigate the impact of ground granulated blast furnace slag (GGBFS) and corn cob ash (CCA) as a partial replacement material for Portland cement (PC) and fine aggregate (FA), respectively, on fresh and hardened concrete properties, as well as the embodied carbon of concrete. The concrete mix was blended with 5-20% of GGBFS and 10-40% of corn cob ash, both individually and combined. A total of 300 concrete specimens were made to achieve the targeted strength of 25 MPa at a 0.50 water/cement ratio and cured at 28 days. It is observed that the workability of fresh concrete is lowered as the dosages of GGBFS and CCA increase in the mixture. Moreover, the compressive and split tensile strengths are augmented by 10.94% and 9.15%, respectively, at 10% of GGBFS by the weight of PC at 28 days. Similarly, the compressive and split tensile strengths are augmented by 11.62% and 10.56%, respectively, at 30% of CCA by the weight of FA at 28 days. Moreover, the combined use of 10% of GGBFS as a cementitious ingredient along with 30% of fine aggregate replaced with CCA in concrete provides the highest compressive and splitting tensile strength, with 16.98% and 13.38% at 28 days, respectively. Furthermore, the density and water absorption of concrete were reduced with increasing dosages of GGBFS and FA in concrete at 28 days. In addition, the embodied carbon and energy were also reduced as the replacement content of GGBFS along with CCA increased in concrete. It is concluded that 10% of GGBFS and 30% of CCA are the optimum percentages for structural applications to reduce the use of cement as well as the cost of the project.

scholarly journals Mechanical Properties of Concrete with Mineral Admixtures - An Experimental Programme

2019 ◽  
Vol 8 (11) ◽  
pp. 3934-3936
Keyword(s):  
Composite Material ◽  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Mineral Admixtures ◽  
Partial Replacement ◽  
Natural Sand ◽  
Cement Production ◽  
Manufactured Sand ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

Concrete is a general composite material used in construction industry over many decades. Due to rapid Growth of infrastructure, the demand of concrete is raising day by day. This composite material mainly made up of cementitious material such as cement and natural sand. This cement production results in release of large amount of CO2 which directly effects environment pollution and Global warming and also, the usage of natural sand leads to environmental degradation. So, better way to reduction in CO2 emission by minimizing cement content with some other puzolonic materials such as Metaakolin,Fly ash, Ground granulated blast furnace slag(GGBS) and This present Experiment is for to observe the cube and cylinder specimens strength of M40 grade of concrete at 7 days and 28 days with partial replacement of cement with ground granulated blast furnace slag ,Metakaolin and flyash @ 15%,30%,45% of binding material and natural sand with manufactured sand (M-sand)

Flexural Behavior of Beams Incorporating GGBS as Partial Replacement of Fine Aggregate in Concrete

2014 ◽  
Vol 984-985 ◽  
pp. 698-706 ◽  
Author(s):  
P. Brightson ◽  
M. Premanand ◽  
M.S. Ravikumar
Keyword(s):  
Heavy Metals ◽  
Blast Furnace ◽  
Flexural Strength ◽  
Blast Furnace Slag ◽  
Waste Product ◽  
Flexural Behavior ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

Ground-granulated blast-furnace slag (GGBS) is obtained as waste product from the Iron industries, Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder. Investigations were carried out to explore the possibility of using GGBS as a replacement of sand in concrete mixtures. This paper presents the results of study undertaken to investigate the feasibility of using GGBS as fine aggregate in concrete. The effects of replacing fine aggregates by GGBS on the compressive strength of cubes, split tensile strength of cylinders and flexural strength of beams are evaluated in this study. Five test groups were constituted with the replacement percentages of 0%, 20%, 30%, 40%, and 50% .The results showed the effect of GGBS on RCC concrete elements has a considerable amount of increase in the compressive, split tensile and flexural strength characteristics. Leaching studies revealed that GGBS does not leach heavy metals like Pb, Zn, Cr, Ni, Mo etc and also indicates that the leaching of heavy metals was well below the toxicity limits even under aggressive conditions.

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