IS 455 (1989): Portland Slag Cement
Portland slag cement is obtained by mixing Portland cement clinker, ... from 4'0to S·O, increasing the insoluble residue content from 2'5 to 4 percent, making autoclave ... or electrrc pig Iron furnace. Granulated slag IS obtained by further processing the molten slag hy
اقرأ أكثر
Developing sustainable steel slag-based aerated concrete: …
Several factors limit the utilization of steel slag, including poor hydraulic properties [21, 22], a high presence of free -CaO/MgO that leads to stability issues in cement [17, 23, 24], and poor grindability due to high iron content [25]. Nevertheless, it is important to highlight that despite its weak hydraulic properties, the abundant free ...
اقرأ أكثر
Producing Portland cement from iron and steel slags and …
Blending 10% extra iron slag to a cement composed of 49% iron slag, 43% calcined lime, and 8% steel slag kept the compressive strength of concrete above standard values for type I ordinary Portand cement. ... Silica and iron oxide are added to balance the composition, so that the content of oxides in cement is approximately 62–68% CaO, 21 ...
اقرأ أكثر
NewCem | Slag Cement Canada | Slag Concrete | Lafarge …
Unlocking NewCem® Slag Cement Advantage. For top-quality slag, consistent chemistry from a reliable source and rapid slag quenching equipment are essential. Lafarge engineers and scientists have led North America in the research and development of specifications for slag.
اقرأ أكثر
Influence of iron content of chemically and mineralogically …
The highest content was found for the cement containing the slag with the highest iron content (35EAFS19). This is confirmed by both QXRD and TG data (see Fig. 8 and Fig. 9 ). Download: Download high-res image (207KB)
اقرأ أكثر
Cement : Iron and steel slag products : NIPPON …
The majority of the demand for these products comes from the field of cement. Approximately 40% of iron and steel slag products, and 60% of blast furnace slag, are used in cement. Most of these products are used as a raw material in …
اقرأ أكثر
A review of the application of steel slag in concrete
In general, EAFS exhibits slightly lower CaO content but higher levels of SiO 2 and iron oxides compared to BOFS. These differences in chemical composition can be attributed to the utilization of different steelmaking processes. ... steel slag concrete exhibits lower residual strength after exposure to high temperatures exceeding 600 °C. ...
اقرأ أكثر
Slag Cement: A Valuable SCM to add to Your Concrete Toolkit
Today, slag cement (commonly referred to as slag) is regarded as an important part of the answer to the fly-ash spot shortages faced by ready-mix concrete producers, as well as the performance challenges faced by architects and engineers. Whether your needs call for general use, improved performance or durability enhancement, slag cement should clearly be regarded …
اقرأ أكثر
Blast Furnace Slag Cement: Components, Uses and the …
The slag obtained from the iron ore is separated and gradually cooled. The result is a nonreactive crystalline material. Subsequently, this slag is finely ground, akin to cement, and blended in varying proportions based on specific project requirements. ... Slag ratio refers to the percentage of blast furnace slag content in cement, influencing ...
اقرأ أكثر
Influence of iron content of chemically and mineralogically …
This work investigates the influence of the iron content of tailored electric arc furnace slag (EAFS) on hydration and strength development as well as associated heavy metal leaching properties of Portland composite cement.Further, the impact of limestone additions was investigated. EAFS from scrap smelting plant was used as starting material.
اقرأ أكثر
The potential utilization of slag generated from iron- and …
Attention should be paid on the free lime content when utilizing the iron- and steelmaking slag in road construction as free magnesia is normally less than 3% in the slag. Iron content including FeO, Fe 0, and Fe 2 O 3 is another important factor to evaluate the possibility of slag as cement due to the concerns on the volume stability and ...
اقرأ أكثر
NewCem® Slag
NewCem® Slag Cement is a finely ground, granulated blast furnace slag (GGBFS) available to blend with conventional Portland cement to deliver a strong, high-quality, durable concrete. Concrete production utilizing NewCem …
اقرأ أكثر
Influence of residual iron content in steel slag on the long …
The underutilization of steel slag is attributed to various factors, such as its poor hydraulic properties and poor grindability due to high iron content [4].Moreover, when it is incorporated into cementitious materials, its high free-CaO/MgO content often results in volume stability issues [5].Specifically, during the hydration process, the conversion of free-CaO/MgO …
اقرأ أكثر
Comprehensive utilization of steel slag: A review
The primary minerals that make up steel slag include dicalcium silicate (C 2 S), tricalcium silicate (C 3 S), calcium‑magnesium olivine (CaMg[SiO 4]), tetracalcium iron aluminate (C 4 AF), dicalcium ferrate (C 2 F), RO (oxide solid solution of Mg 2+, Fe 2+, Mn 2+), free calcium oxide (f-CaO).The mineral composition of steel slag is comparable to that of silicate cement, …
اقرأ أكثر
Ground Slag Properties, Characterisation and Uses
consistency. Specifically, the iron slag must first be quenched to form slag granulate – a glassy mineral product – and then the granulate is milled to cement-like ... which is the "Standard Specification for Slag Cement for use in Concrete and Mortars". The ASTM Standard12 describes three grades of GGBFS ... Chloride ion content (% max ...
اقرأ أكثر
HOME | SCA
Reducing the carbon impact of concrete is an important factor in construction material choice. Slag cement is a recovered material from the iron production process and because of this, reduces the environmental impact of concrete mixtures by decreasing carbon footprint, embodied energy and the use of non-renewable materials.
اقرأ أكثر
What is Portland Slag Cement (PSC)? Properties, Use, …
Cost: Using Portland Slag Cement can lead to cost savings in construction projects. It is often more economical than traditional Portland cement due to the reduced clinker content and the utilization of industrial by-products. Uses of Portland Slag Cement. Portland Slag Cement finds application in various construction projects, including: 1.
اقرأ أكثر
Georgia Chapter ACI Luncheon Benefits of Slag Cement …
Benefits of Slag Cement In Concrete October 28, 2015 . Prepared by: ... the Contractor may use granulated iron blast-furnace slag as a partial replacement for Portland cement in concrete if the following ... 6.5% air content Moist cured 4x8-in. (100x200-mm) cylinders Type I strength at 28 days = 6120 psi (42 MPa) ...
اقرأ أكثر
Slag
Ground-granulated blast-furnace slag (GGBFS) is produced by quenching molten iron slag (a by-product of iron and steel-making) from ... Skip to main content Apply. Main navigation. Products; Technical; Careers ... early age strength development of slag blends is slower than straight cement concrete however strength development from 28 days ...
اقرأ أكثر
Slag uses in making an ecofriendly and sustainable concrete: A …
Slag, as shown in Fig. 1, is the 16th ingredient of high-performance concrete production [22], called supplementary cementitious materials (SCM) [23], that can enhance the strength and durability of concrete [2].The highly fine slag powder, with a surface area of 400–600 m 2 /kg and a bulk density of 1200 kg/m 3, can be mixed with free lime to replace 40% to 65% …
اقرأ أكثر
Slag Cement and Concrete Pavements
Slag cement—commonly referred to as ground granulated blast-furnace slag, or GGBFS— is a hydraulic cement that works synergistically with portland cement to improve the strength and …
اقرأ أكثر
SLAG CEMENT AND FLY ASH
Slag Cement Association 38800 Country Club Farmington Hills, MI 48331 phone: 847.977.6920 e-mail: info@slagcement web: Concrete Properties Slag cement is a more uniform product than fly ash. As a result, concrete made with slag cement will generally have more uniform properties than concrete made with fly ash. Plastic ...
اقرأ أكثر
Slag cement
Typical rates of slag in concrete in the U.S. are between 35% and 50% slag. Mixtures with a slag content of 35% or greater have a significantly lower environmental footprint. All concrete should be mixed thoroughly until it is uniform in appearance and all ingredients are evenly distributed.
اقرأ أكثر
FAQs
38800 Country Club Dr. Farmington Hills, MI 48331 Phone: 248-848-3814. SCA Director: nick.brimley@slagcement Technical Questions: info@slagcement
اقرأ أكثر
Why Slag Cement? | SCA
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.
اقرأ أكثر
Georgia Chapter ACI Luncheon Benefits of Slag Cement …
Performance benefits can be achieved with all grades. If high early strengths are not desired, use granulated slag as a partial replacement for Portland cement in concrete. Follow these limits: …
اقرأ أكثر
Blast Furnace Slag
Ground granulated iron blast-furnace slag (slag cement) is a water-cooled nonmetallic hydraulic cement consisting essentially of silicates and aluminosilicates of calcium grounded to less than 45μm [1]. ... resistance to deicing chemicals of mortars and concretes were discussed depend on the used GGBFS content. Overall, this review paper ...
اقرأ أكثر
Safety Data Sheet
Slag Cement, Iron Slag Cement, Pig Iron Slag Cement, Water Granulated Ground Blast Furnace Slag Cement Covers Products: i.tech SLAG Relevant identified uses of Building materials, construction, a basic ingredient in concrete. the substance or mixture and uses advised against:
اقرأ أكثر
A brief review on workability characteristics of iron slag concrete
This paper briefly reviews some of the workability properties indicating the fresh-state performance of iron/steel slag concrete. The effects of different tests due to slag content are also examined.
اقرأ أكثر
IRON AND STEEL SLAG
blast furnace slag (GGBFS). Iron slag and steel slag are used primarily as aggregates in concrete (air -cooled iron slag only) and as asphaltic paving, fill, and road bases; both slag types also can be used as a feed for cement kilns. Almost all GGBFS is used as a partial substitute for portland cement in concrete mixes or in blended cements.
اقرأ أكثر