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Relation between Porosity and Compressive Strength of Slag

This research aims to investigate the pore structures characteristics of slag concrete and its correlation with the compressive strength. In the study three water/binder ratios (0.35 0.50 0.70

On The Relationship between Compressive Strength and

Slag concrete of mix ratio 70 30 with water cementitious ratio 0.4 and 30 days precuring is found to be the most effective in resisting the adverse effect of sea water. View Show abstract

Why use Fly Ash and Slag in Concrete Bay-Lynx

Slag happens when iron ore is melted. The molten iron sinks to the bottom while the slag will float on the top of the iron. See the diagram below Another difference between slag and fly ash is that while fly ash will rarely surpass 35 of the cement content slag can substitute 50 of the cement content or even higher for different applications.

Glass Phase Structure of Blast Furnace Slag Scientific

This paper studies the blast furnace slag glass phase structure by a series of analysis methods. In glass phase both Si and Al ions are confirmed to occupy only tetrahedral sites while the SiO4 4- and AlO4 5- are separated by Ca and Mg. Furthermore the glass structure corresponds to micro-crystal model which means it contains some nano-scaled micro-crystals in the glass phase.

Relation between Porosity and Compressive Strength of Slag

 · This research aims to investigate the pore structures characteristics of slag concrete and its correlation with the compressive strength. In the study three water/binder ratios (0.35 0.50 0.70) and three substitute ratios of cement with slag (10 20 40 ) were selected for

Why use Fly Ash and Slag in Concrete Bay-Lynx

Slag happens when iron ore is melted. The molten iron sinks to the bottom while the slag will float on the top of the iron. See the diagram below Another difference between slag and fly ash is that while fly ash will rarely surpass 35 of the cement content slag can substitute 50 of the cement content or even higher for different applications.

Transient Thermo-fluid Model of Meniscus Behavior and

 · the molten slag transforms to solid slag as it cools due to heat removal into the water-cooled mold. As a result the gap between the mold hot face and the steel shell contains slag in two phases—solid and liquid. A thicker layer of solid slag termed the Slag Rim solidifies against the mold hot face above the liquid slag layer. 8

UNDERSTANDING THE ROLE OF MOULD SLAG AND SLAG

 · The formation of slag film between the solidifying shell and the copper mould plate is critical in terms of lubrication and heat transfer both of which are influenced by its thickness and degree of crystallisation. The films are usually only two to four millimetres thick but the temperature difference between one face and the other can be 950

Relationships between compressive strength of

Highlights An exponential equation exists between the strengths in air and water curing conditions. In duration of 3–7 days wc is the optimum for all groups of mortars with exception of OM500 and SM500. Higher strengths obtained using lower binder contents for OPC and OPC-slag cured in water. The highest strength for OSM380-wc was obtained at 90 days as 80 MPa. Air curing conditions

(PDF) Relationship between copper content of slag and

Q.M. Wang et al. Relationship between copper content of slag a nd matte in the SKS copper smelting process 307. is greater above 56 because the oxygen potential in the. SKS furnace is

Study of the Suitability of Different Types of Slag and

 · and workability. Results with substitutions between a 25 to 50 and water/cement ratio of 1 are presented. In particular the suitability of different slags (two Ladle Furnace Slag (LFS) and one Blast Furnace Slag (GGBS)) in the quality of the final product are analyzed. The feasibility of replacing

Air Pollution Impacts When Quenching Blast Furnace Slag

A direct relationship was also found between the slag tempera- ture and particulate emission rates. Based on the limited data obtained in this work no correlation could be drawn between slag temperature or level of specific con- taminants in the quench water and the resulting air emissions of that contami-

Air Pollution Impacts When Quenching Blast Furnace Slag

A direct relationship was also found between the slag tempera- ture and particulate emission rates. Based on the limited data obtained in this work no correlation could be drawn between slag temperature or level of specific con- taminants in the quench water and the resulting air emissions of that contami- nant.

Relation between Porosity and Compressive Strength of

This research aims to investigate the pore structures characteristics of slag concrete and its correlation with the compressive strength. In the study three water/binder ratios (0.35 0.50 0.70

UNDERSTANDING THE ROLE OF MOULD SLAG AND

 · If it is assumed that the slag film in the first ladle of Trial 14 was indeed in a similar condition to that in Trial 13 then since the slag film observed at the end of the second ladle of Trial 14 was observed to be continuous it follows that the slag film must become continuous at some point during casting of the second ladle. In order to determine just how long it takes for the film to become

The Relationship between Shrinkage of Blast Furnace Slag

The results show that the shrinkage of both cement paste and mortar with GGBS could be effectively restrained compared with Portland cement in most cases except the use of GGBS with fineness of 605m2/kg. In the blast furnace slag cements shrinkage of pastes linearly increases with the non-evaporable water content.

The relationship between silicate structure and mass

 · Slag refining of silicon is one of few feasible methods currently in use industrially for removal of boron in the production of silicon for photovoltaic applications. In order tooptimize this process there is a need to enhance the understanding of the relationship between slag composition and the kinetics of boron transfer from metal to slag.

Comparison of the mineralogy and microstructure of EAF

 · the amount of slag which is stabilized by water cooling treatment. This is mostly due to the partially disintegration of slag upon air-cooling treatment 2 and/or volume instability due to the hydration of free CaO and MgO to Ca(OH) 2 and Mg(OH) 2 3 . In the field the stabilization of steel slag

Relation between Porosity and Compressive Strength of

 · This research aims to investigate the pore structures characteristics of slag concrete and its correlation with the compressive strength. In the study three water/binder ratios (0.35 0.50 0.70) and three substitute ratios of cement with slag (10 20 40 ) were selected for

Experimental and Numerical Investigation of Slag

 · the effect of slag layer thickness on the slag eye. On the top of water model a video camera was placed to observe the formation of slag eye. Air was injected through the porous plug located at the bottom of the nozzle for stirring rate of 3.5 NL/min and for different slag layer thickness ranging from 7.5 to 75 mm. Water

NSA 172-13 Slag and Its Relation to Corrosion of Ferrous M.

 · SLAG and Its Relation to the Corrosion Characteristics of Ferrous Metals NATIONAL SLAG ASSOCIATION nationalslagassoc Page 8 5. ErosionCorrosion Erosion-corrosion is the acceleration or increase in rate of corrosion of a metal due to relative movement between a moving fluid and the metal. Many erosion-corrosion

Effect of Water Granulation Conditions on Density and

lated Slag To investigate the relationship between the density and grain size of water granulated slag and the molten slag tempera-ture blowing water temperature slag flow rate and water/ slag ratio water granulated slag samples were taken from an actual water granulation system during the tapping period.

A Study on the Strength and Grindability of Granulated

slag particle sieved from 10 to 20ƒÊm (the mean diameter 15ƒÊm). Fig. 5 shows the relationship between St and E/M for the granulated slag samples with its original granulated particle size over 4000ƒÊm and 710†`1000ƒÊm as an example. As can

Types of iron and steel slag NIPPON SLAG ASSOCIATION

 · The molten slag flows into a cooling yard where it is cooled slowly by natural cooling and by spraying with water. This results in a crystalline rock-like air-cooled slag. Granulated slag The molten slag is cooled rapidly by jets of pressurized water resulting in a vitreous granulated slag.

What is slag cement

What is Slag Cement. Slag cement is a hydraulic cement formed when granulated blast furnace slag (GGBFS) is ground to suitable fineness and is used to replace a portion of portland cement. It is a recovered industrial by-product of an iron blast furnace. Molten slag diverted from the iron blast furnace is rapidly chilled producing glassy

Chemical characteristics of iron and steel slag NIPPON

 · The primary components of iron and steel slag are limestone (CaO) and silica (SiO 2).Other components of blast furnace slag include alumina (Alsub>2 O 3) and magnesium oxide (MgO) as well as a small amount of sulfur (S) while steelmaking slag contains iron oxide (FeO) and magnesium oxide (MgO) the case of steelmaking slag the slag contains metal elements (such as iron) in oxide form

Effect of Reduction Degree on Characteristics of Slag

 · between slag and metal and 3) the partition of V between slag and metal. 2. Experimental Section In the first part commercial self-fluxing hematite pellets were reduced to different degrees by hydrogen and then melted at 1873K to study the partitions of phosphorus and vanadium between steel and slag. In the second part small slag samples

A heat transfer model for high titania slag blocks

 · relationship for the solidified slag the enthalpy was also assumed to change linearly (between that of the solid slag and that of the liquid slag) over the temperature range T solidus —T liquidus. The linear approximations are given in Table II while the fitted relationships are given in the following equations (all

Effect of Water Granulation Conditions on Density and

lated Slag To investigate the relationship between the density and grain size of water granulated slag and the molten slag tempera-ture blowing water temperature slag flow rate and water/ slag ratio water granulated slag samples were taken from an actual water granulation system during the tapping period.

Why use Fly Ash and Slag in Concrete Bay-Lynx

Slag happens when iron ore is melted. The molten iron sinks to the bottom while the slag will float on the top of the iron. See the diagram below Another difference between slag and fly ash is that while fly ash will rarely surpass 35 of the cement content slag can substitute 50 of

Relationships between compressive strength of cement

In this investigation 12 mortar mixes including three groups were prepared using binder contents 380 and 500 kg/m 3. All the specimens were cured after casting and demoulding in curing regimes i.e. at room temperature (ac) and in water (wc). The highest strength was obtained for cement-slag mortars 380-wc at later ages as 80 MPa. For all groups of mortars there could rarely be strength loss

Relation between Porosity and Compressive Strength of Slag

 · This research aims to investigate the pore structures characteristics of slag concrete and its correlation with the compressive strength. In the study three water/binder ratios (0.35 0.50 0.70) and three substitute ratios of cement with slag (10 20 40 ) were selected for preparing concrete specimens.

What s the difference between basalt rockwool and slag

 · When the slag rock wool board is used in a high-humidity environment the CaS will decompose into Ca(OH)2 and H2S. Ca(OH)2 makes the water alkaline and further reduces the water resistance of the slag cotton. H2S gas can be dissolved in water to produce hydrosulfuric acid which will cause corrosion when it comes into contact with metal.