Mechanical strength, water resistance and drying shrinkage of lightweight hemihydrate phosphogypsum-cement composite with ground granulated blast furnace slag and recycled waste glass. ... In view of this, various amount of ground granulated blast furnace slag (GGBS) (5–25%) and Portland cement (15%) were mixed with the HPG and compared with ...
Ground granulated blast furnace slag (GGBS) is a by-product of the manufacture of iron, and is produced in large amounts globally. As a latent hydraulic material, the effect of lime slag- and magnesia-activated GGBS on soil stabilization has been investigated, and the results show that the activated GGBS works better to improve the unconfined ...
DOI: 10.1016/J.CEMCONCOMP.2014.10.007 Corpus ID: 136016545; Strength and hydration properties of reactive MgO-activated ground granulated blastfurnace slag paste @article{Jin2015StrengthAH, title={Strength and hydration properties of reactive MgO-activated ground granulated blastfurnace slag paste}, author={Fei Jin and Kai Gu and Abir Al-Tabbaa}, …
12.1. Introduction. Blast furnace slag (BFS) which is defined "as the non-metallic product consisting essentially of silicates and alumina silicates of calcium and other bases, that is developed in a molten condition simultaneously with iron in a blast furnace" by ASTM C 125-16 (2016) has been widely used in construction industry for more than 80 years.
Ordinary Portland cement (Type I) with specific gravity of 3.15 and fineness of 359 m 2 /kg, ground granulated blast furnace slag (GGBS) with specific gravity of 2.9 and fineness of 380 m 2 /kg, and Class F Fly Ash with a specific gravity of 2.3 and activity index of over 75% at 28 days determined according to BS EN450, were used in this research. . The activity index of …
Ground-granulated blast-furnace slag (GGBS) is a supplementary cementitious material used in concrete and is produced by drying & grinding of Granulated blast furnace slag into a fine powder. GGBS's intrinsic properties contribute towards manufacturing sustainable concrete with higher compressive strength, reduced permeability & resistance to ...
For instance, when steel slag content reaches 30%, the 180 d drying shrinkage value is 3070 × 10 −6, ... D. Activation mechanisms of three types of industrial by-product gypsums on steel slag-granulated blast furnace …
Ground Granulated Blast Furnace Slag (GGBFS) plays a pivotal role in advancing sustainable construction practices by reducing waste, energy consumption, and carbon emissions in the production of concrete. Its use in …
The high water content and viscosity make construction mud extremely difficult to manage, causing land occupation and environmental pollution problems. This research aims to investigate the durability of ground granulated blast furnace slag (S) and calcium carbide residue (CCR), two industrial by-products, solidified waste mud under wetting–drying cycles, and …
Water granulated slag seems to be less easily ground than Portland cement. The pelletized slag, because of its porous structure requires less energy to grind than granulated slag. ... Results on the drying shrinkage of slag cement concretes are conflicting. This is due to the variations in the slag properties, cement properties, curing ...
Also there is the need of a proper water management on one hand and the necessity of the drying of the granulated BF slag on the other hand. So, not only the sensible heat of the liquid BF slag is lost, but it is also necessary to have an upstream slag drying unit for using the granulated BF slag in the cement industry. The drying process ...
Ground-granulated blast-furnace slag (GGBS) is a supplementary cementitious material used in concrete and is produced by drying & grinding of Granulated blast furnace slag into a fine powder. GGBS's intrinsic properties contribute …
Slag cement, originally known as granulated blast-furnace slag, begins with the production of iron. The heart of the process is the blast furnace that refines iron ore into iron. The ingredients are heated to nearly 1500 degrees Centigrade to form two components: iron and molten slag.
w/cm, % slag, % Al2O3 in the slag, and slag Blaine. Drying shrinkage values after 28, 56, 114, and 365 (or 448 days, 64 weeks) days were tabulated where available.
For example, it has been estimated that the use of 50% granulated BF slag in a cement mix reduces the CO 2 emissions from 1.2 to 0.54 t/t cement . If all the BF slag were directed to cement, ... It is claimed that 50–70% of the heat could be recovered and could be used for drying and preheating materials. However, the hot air may be at ...
Ground granulated blast-furnace slag (GGBFS) is a byproduct of making iron and steel, i.e., a fine powder grounded from the glassy, granular material that forms when molten iron blast furnace slag is air quenched with water or steam. ... The granulated slag is further processed by drying and then grinding in a rotating ball mill to a very fine ...
The effect of heat curing treatment that samples cured from room temperature to an elevated temperature of 60 °C for 24 h on the mass loss, drying shrinkage and microstructure of mortar incorporating ground granulated blast-furnace slag (GGBS) as cement replacement at 0%, 20%, 40% and 60% by weight was experimentally investigated in this study.
Granulated Blastfurnace Slag. (GBS) is manufactured from molten blastfurnace slag, a co-product produced simulta-neously with iron. Rapid chilling with water or air forms a glassy …
DOI: 10.1016/J.SANDF.2016.02.004 Corpus ID: 131530743; Ground granulated blast furnace slag amended fly ash as an expansive soil stabilizer @article{Sharma2016GroundGB, title={Ground granulated blast furnace slag amended fly ash as an expansive soil stabilizer}, author={Anil Kumar Sharma and Puvvadi V. Sivapullaiah}, journal={Soils and Foundations}, …
1.1.2 The Lhasa method (RASA) The Lhasa method (RASA) water granulated slag treatment system was developed by Nippon Steel Pipe and the British trading company RASA and was first applied on blast furnace No. 1 at Fukuyama Steel Works in Japan [Citation 4].The principle of the RASA method is that after the blast furnace slag has been water …
Power consumption: 10 kWh/t dry slag (WBCSD, 2002;Ruhmer, 1992) Fuel consumption: 300 MJ/t dry slag (calculation based on ten per cent moisture and 20 per cent heat loss from dryer -similar fuel ...
Nowadays, geopolymers, which are more environmentally friendly than cement due to the high energy requirements and high carbon dioxide (CO 2) emissions of cement production, emerge as alternative binders.In this study, the mechanical and durability properties of geopolymer concrete (GC) based on ground granulated blast furnace slag (GGBS) (100GGBS), 50% fly ash (FA) …
The main initial data for designing the DSGP are the yield of the liquid cast iron supplied for granulation G, m 3 /s, and the maximum particle diameter of the granulated blast-furnace slag d, mm.The secondary data are the temperature of the blast-furnace slag at the exit from the blast furnace, T s0, ℃; thermophysical parameters of the liquid and solid slags; …
Dry slag granulation is based on molten slag atomization using a variable speed rotating cup or dish (see Fig. 1). The slag is fed from the slag runner via a vertical refractory …
Corpus ID: 136905204. ON A NEW DRYER FOR SLAG OR FLY-ASH., . Published 1994. Materials Science, Engineering. Granulated blastfurnace slag or fly-ash, asadmixture …
Section snippets Materials. In the present study, ground granulated blast furnace slag (GGBFS) samples with fineness values of 3000, 4000 and 8000 cm 2 /g were used as the replacement of cement, with up to 45% by weight of cement replaced. Three types of cement, i.e., ordinary Portland cement (N), moderate heat Portland cement (M), and low heat Portland …
Effect of drying-wetting cycles on slag-modified MOC solidified sludge. In Fig. 6 (b), the UCS of 10P10M0S, 10P10M20S and 10P10M40S is evidently reduced to the lowest values of 1.67 MPa, 1.83 MPa and 1.80 MPa at 2 drying-wetting cycles and rises to the highest values of 1.97 MPa, 2.03 MPa and 2.27 MPa at 6 cycles, followed by a faint drop. In ...
The technological factors required to improve the operational properties of granulated metallurgical slags demanded in the building industry have been analyzed. In order to satisfy these factors, a new technology for hydro-vacuum granulation of slag melts (HVG) has been developed. It is shown that the main advantage of the proposed HVG process is the …
and energy consumption (due to need for slag drying). As such, wet granulation is a . ... water granulated slag, and (3) 20% replacement of OPC with ground atomized slag. 210.
Hello All,I am looking to install a dryer for Granulated Blast Furnace Slag (Moisture content around 15% & Dryer capacity of around 4 to 5 tonnes per hour)I need help and suggestion on the type of
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 chloride penetration. …
resistance of slag, the current study is aimed to improve the compressive strength of concrete with reduced slag content by adopting novel mixing methodology. Notations GBS 2.5 2.5% weight of cement replacement by blast furnace slag GBS 5 5.0% weight of cement replacement by blast furnace slag GBS 10 10% weight of cement replacement by blast ...
DOI: 10.1016/J.CONBUILDMAT.2017.07.020 Corpus ID: 139151552; Experimental study on shrinkage of HPC containing fly ash and ground granulated blast-furnace slag @article{Zhao2017ExperimentalSO, title={Experimental study on shrinkage of HPC containing fly ash and ground granulated blast-furnace slag}, author={Yanhua Zhao and …
The technological factors required to improve the operational properties of granulated metallurgical slags demanded in the building industry have been analyzed. In order to satisfy these factors, a new technology for hydro-vacuum granulation of slag melts (HVG) has …
