— Ground granulated blast-furnace slag (GGBS) is a green construction material used to produce durable concrete. The secondary pozzolanic reactions can …
— Likewise, in the case of RM-GGBS-based geopolymer binders, the SEM analysis revealed that at 70% RM and 30% GGBS, the matrix was found to be denser and had minimum microcracks. While in the case of FCA-GGBS-based geopolymer binders, the SEM analysis mostly demonstrated the presence of unreacted source materials, …
The cost of using GGBS in low-grade applications may not be reimbursed if the nearest steel company producing GGBS is 1) Lecturer, chartered engineer . further away from the construction site compared to the nearest cement distributors and this is found to be true in most Chinese cities (Tang et al., 2013). Thus there is a
25% of GGBS 3.74 5.55 Mix-3 30% of GGBS 3.70 5.48 Mix-4 35% of GGBS 3.46 5.38 Mix-5 40% of GGBS 2.78 5.01 Chart -2: Split Tensile Strength on 3, 7 and 28 days Table -9: Flexural Strength on 14 and 28 days Mix Designation Flexural Strength in N/mm2 14 Days 28 Days Mix-1 Control mix 5.85 6.72 Mix-2 25% of GGBS 7.73 10.01 Mix-3 30% of GGBS
— Ordinary Portland Cement 53 grade, conforming to the requirements of Indian Standards IS 12269: 2013 [], was used in the study.Ground-granulated blast-furnace slag 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 …
— In terms of strength development, rice husk ash concrete is like fly ash/slag concrete. Rice husk ash, on the other hand, is a very active pozzolanic material, and the consequences of the pozzolanic reactions are visible at an early age rather than later as with other replacement cementing materials [14].It is favorable to the strength …
GGBS Version 2.1. For large contractors (CRS financial grade "A" and "B") ; Focuses on both green and gracious practices; Ratings of Certified, Merit, Excellent, and Star; Minimum "Certified" rating ; Mandatory Requirement in BCA's Contractors Registry System (CRS) for Contractors with workheads CW01 (General Building) and CW02 (Civil Engineering), …
— It is shown that, at a given water/cement ratio, in comparison to Portland cement (PC), the use of GGBS results in a reduction in 28-day concrete strength, which increases with GGBS …
— And 30% replacement of GGBS is greater than the 50% replacement of GGBS. 5.3 Effect of Variation of GGBS on Flexural Strength The flexural strength of concrete is tested for 28 days, 90 days for 0 ...
— Karri et al. found the mechanical properties of M20 and M40 grade concrete replaced by GGBS with OPC up to 50%, and the study reveals remarkable performance with 30% replacement. Arivalagan [ 6 ] investigated the increasing of later age strength on M35 grade of concrete using GGBS with good workability and durability.
— The ingredients used in the production of conventional concrete were 53 grade OPC with a specific gravity of 3.15, specific gravity of F.A. and C.A. is 2.65 and 2.7 with zone III respectively, water, GGBS and, RHA.
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IV. GGBS Concrete GGBS Proportions On its own, ground granulated blast furnace slag (GGBS) hardens very slowly and, for use in concrete, it needs to be activated by combining it with Portland cement. A typical combination is 50% GGBS with 50% Portland cement, but percentages of GGBS [4] anywhere between 20 and 80 % are commonly used.
— A group of 13 experts from across structural engineering, concrete and cement industries, construction, academia, and civil society have collaborated on a paper that reviews the use of ground granulated …
concrete. In durability study conventional and GGBS concrete is tested by conducting acid attack, sulphate attack and RCPT. The property of concrete made by partially replacing the cement by various % of GGBS such as 10%, 20%, 30%, 40% and 50% by volume in M 30 grade of concrete. The experimental results revealed that GGBS 20%
The Use of GGBS and silica fume normally reduces the environmental hazard but makes the concrete economical as well. The study also intended to quantify the amount of Ground granulated blast furnace slag (GGBS) to be added to the concrete ... grading curve also affects the property of the concrete of not being blocked by the reinforcement ...
admixture micro fine GGBS.GGBS partially replaced & added in cement concrete for evaluating the workability and strength of concrete along with flexural & split tensile strength. This study has been done by varying (5% to 25%) GGBS on partial replacement & addition in cement by weight of Portland pozzolana cement.
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construction schedules where the quick mount is required. The last phase of the GGBS was shown in the figure 1.1. So far in the literatures most of the work has done in the M30, M40 grade of concrete and very few has covered in the M20 grade of concrete using GGBS. Hence it is worth the experimenting
— This study, third in the series, following from ground limestone and Class F fly ash, evaluates, as a cement constituent, the effect of using ground granulated blast furnace slag (GGBS) on the ...
Table 5.3 M30 Grade Compressive Strength Results Test Table % Replacement of cement with GGBS Compressive strength at 28 days 0% (Normal concrete) 31 20% 31.5 30% 32.6 40% 30.12 Fig 5.5 Compressive Strength of Plain Cement Concrete with GGBS as admixture for 28 days Table 5.4 M40 Grade Compressive Strength Results Test Table
— Concrete and mortar mixes of 47 MPa 28-day target mean cube strength were developed and investigated in this study with various percentages of GGBS (0, 20, 35, …
Calculations Relating to Concrete and Masonry. Sidney M. Levy, in Construction Calculations Manual, 2012 5.4.5 Ground Granulated Blast-Furnace Slag. Although portland blast-furnace slag cement, which is made by intergrinding the granulated slag with portland cement clinker (blended cement), has been used for more than 60 years, the use of …
— The incremental demand of cement in the construction field is a concern for environmental degradation, in this regard; replacement of cement is carried out with waste materials by using GGBS and ...
To help to determine whether this idea has merit, a group of experts drawn from across the concrete and cement industry, construction, academia and civil society undertook a literature review to better understand global production and utilisation of GGBS and clinker, and how this balance could change in the near-future.
— The combination of the materials used are replacing cement content by 20, 30, 40, 50% of weight of cement by GGBS and metakaolin separately with water – cement ratio of 0.45 and M25 grade of ...
— Early development of decarbonisation strategy enables further emission reduction and lower cost increments during the construction phase, in which low-carbon construction material should be ...
— This study examines the effect of Ground Granulated Blast Furnace Slag (GGBS) and steel fibers on the flexural behaviour of RC beams under monotonic loading. Various percentages of GGBS were used ...
— The mix design is prepared based on Lloyd and Rangan, assuming density of concrete is 2400 kg/m 3, and the total aggregate is taken as 70%, ((Alkaline/(fly ash + GGBS)) or (A/B)) ratio as 0.3, Mass of (fly ash + GGBS) as 387 kg/m 3, Mass of alkaline liquid (Na 2 SiO 3 + NaOH) as 116 kg/m 3, Mass of NaOH and Na 2 SiO 3 solution as …
The grinding process takes account of mean particle size, grading (particle size distribution), fineness and the particle shape in order to ensure that when used in concrete performance is maximised. Typically, GGBS is ground to a specific surface area of 450-550 m 2 /kg, similar to that of cement.
PSC - Portland Slag cement is a kind of blended cement manufactured either by grinding the Portland clinker with gypsum and granulated slag or by blending the ground …
7-day to 28-day strength ratios of OPC, PFA and GGBS concrete: 0.829, 0.748 and 0.734 respectively. The 28-day strength of GGBS concrete: higher than OPC concrete and …
— Ground granulated blast-furnace slag (GGBS) is a green construction material used to produce durable concrete. The secondary pozzolanic reactions can result in reduced pore connectivity; therefore, replacing partial amount of Portland cement (PC) with GGBS can significantly reduce the risk of sulfate attack, alkali–silica reactions and …
International Journal of Innovative Technology and Exploring Engineering (IJITEE) ISSN: 2278-3075, Volume-8 Issue-12, October 2019 949 Published By:
— What is Ground Granulated Blast Furnace Slag (GGBS)? The ground granulated blast furnace slag (GGBS) is a by-product of iron manufacturing which when added to concrete improves its properties such as workability, strength, and durability.. This material is obtained by the heating of the iron ore, limestone, and coke at a temperature …
