— DOI: 10.1016/j.conbuildmat.2023.131720 Corpus ID: 258647853; Mechanical behaviour of adsorbent pervious concrete using iron slag and zeolite as coarse aggregates @article{Teymouri2023MechanicalBO, title={Mechanical behaviour of adsorbent pervious concrete using iron slag and zeolite as coarse aggregates}, author={Ehsan Teymouri …
Slags are used as a replacement of portland cement in amounts typically between 25 and 70% of the total mass of cementitious material. Slag concretes have improved long-term …
— In our previous work, iron silicate-contained copper smelting slag was successfully used to prepare a novel acid-base cement, ferrous oxalate cement by reacting with oxalic acid [22, 23]. It was found that the iron compounds contained in copper slag (CS), including fayalite and magnetite, can easily react with oxalic acid at room …
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 …
Depending on the cooling method, three types of iron slag are produced— air cooled, expanded, and granulated— that have different types of applications. Subscribe to receive an email notification when a new publication is added to this page. On the Questions tab of the subscriber preferences page, select "Iron and Steel Slag" and any other ...
— Steel slag is a byproduct from either the conversion of iron to steel in a basic oxygen furnace, or the melting of scrap to make steel in an electric arc furnace. This …
The use of slag cement as a cementitious material dates back to 1774, when a mortar was made using slag cement in combination with slaked lime (Mather 1957). In 1862, a …
— The utilized cement in the mixtures was Portland cement type II which is in accordance with the requirements of ASTM C150 [35].Crushed aggregates in the size of 4.75 mm–9.5 mm, in accordance with ASTM C33, were used in the PC mixtures and their grading was close to the lower limit of the ASTM C33 as shown in Fig. 1 [36].Also, the …
— The cement production industry is responsible of 7–9% of the CO 2 worldwide emissions: the use of iron and steel slags in partial or total replacement of cement would lead to a reduction in cement production, …
The use of slag cement as a cementitious material dates back to 1774, when a mortar was made using slag cement ... (Mather 1957). In 1862, a granulation process was proposed to facilitate removal and handling of iron blast-furnace slag leaving the blast furnace. The use of granulation produced glassy material that played an important part in ...
— Once combined with cement in concrete mixes, it produces superior hardened concrete product. Benefits of Slag Concrete . Slag concrete can be advantageous for any of your upcoming construction …
— As a marker, Fe from the lightweight iron-rich aggregates mitigated into the alkali-activated cement, demonstrating the alkali-activated reaction between the LWA and alkali-activated slag matrix. Molecular dynamics simulations further characterized that the low content of Fe did not decrease the overall strength of the ITZ.
When slag cement is mixed with water, however, the initial hydration is much slower than portland cement mixed with water; therefore, portland cement or salts of alkali metals, principally sodium and potassium or lime, are used to increase the reaction rate of slag cement (ACI 233R). The ASTM C989 slag-activity index is often used as a basic ...
The ground granulated blast furnace slag (GGBFS) 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 iron ore, limestone and coke at a temperature about 1500 degree Celsius.
Ground-granulated blast-furnace slag (GGBFS) is produced by quenching molten iron slag (a by-product of iron and steel-making) from a blast ... early age strength development of slag blends is slower than straight cement …
— The utilization of steel slag for industrial and construction purposes has gained significant attention in recent years due to its abundant availability and potential environmental benefits. This study explores the feasibility of utilizing steel slag as a coarse aggregate in concrete, aiming to determine the optimal replacement percentages for …
Iron slag (IS) an industrial bi-product, can be utilized as natural sand (NS) in developing non-traditional concrete [13]. 'Iron slag' a byproduct of iron manufacturing industry resembles to NS due to identical appearance and particle gradation. Silica-SiO 2, calcium-CaO, alumina-Al 2 O 3, and magnesia-MgO are the primary components of IS ...
The American Concrete Institute (ACI) has recently published ACI 233R-17 Guide to the Use of Slag Cement in Concrete and Mortar. As slag cement use is rising in the U.S., understanding how slag cement works best in various situations is increasingly important for contractors and engineers.The guide covers information on slag cement chemical …
The raw materials used in the test included the steel slag (SS), iron ore tailings (IOT), GBFS, cement clinker (CC), flue gas desulfurization gypsum (FGDG), and others. (1) SS. The SS used was basic hot steaming steel slag which com-plies with the Chinese National Standard GB/T 20451-2006. The chem-ical compositions of steel are shown in Table 1.
Slag cement (also called ground granulated blast furnace slag) is a hydraulic cement produced during the reduction of iron ore to iron in a blast furnace. Molten slag is tapped …
— The suitability of the new type of low iron slag for use as cement constituent needs to be proven. This indicates that it is difficult to shape the process in an economically efficient way. Yücel et al. mainly focused on metal recovery and paid minor attention to the slag application. Temperatures of 1250–1470 °C were tested where highest ...
slag (GGBFS). Air-cooled iron slag and steel slag are used primarily as aggregates in concrete (air-cooled iron slag only); 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.
— As a result of the studies performed within this scope, steel slag, a by-product from iron and steel plants, is an important waste product that can be recycled as …
— Concrete mixtures are designed, based on the ACI 211.3R [52], to investigate the properties of PC, incorporating different proportions of iron slag and zeolite to replace conventional coarse aggregate.The volume-based method and the apparent specific gravity of the materials were used in this research.
Blast furnace slag can also be used to make Ground Granulated Blast-furnace Slag (GGBS) which is used as a cement replacement in concrete. Slag aggregates in asphalt An ideal aggregate for base, binder and surface course asphalt products, the inherent properties in steel slag are assessed in accordance with the requirements of the European ...
Slag cement 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 …
This section contains answers to frequently asked questions (FAQ) about slag cement, and links to the Slag Cement in Concrete (SCIC) information sheet series that provides more detail. ... is a hydraulic cement produced during the reduction of iron ore to iron in a blast furnace. Molten slag is tapped from a blast furnace, rapidly quenched with ...
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 consumes less energy and offers improved efficiency and building performance.
— This potentially expansive nature (volume changes of up to 10 percent or more attributable to the hydration of calcium and magnesium oxides) could cause difficulties with products containing steel slag, and is one reason why steel slag aggregates are not suitable for use in Portland cement concrete or as compacted fill beneath concrete slabs ...
Slag cement is a by-product from the iron manufacturing industry. Molten slag is produced with molten iron in blast furnaces operation at a temperature of ~1500 °C. When rapidly quenched with high-pressure water jets, molten slag transfers to granulated blast furnace slag or slag granules [30]. After the process of drying and grinding, the ...
— A guide to the use of iron blast furnace slag in cement. and concrete, Australian Slag Association, 1997. 40. A guide to the use of steel furnace slag in asphalt and.
primary raw material of slag cement is a byproduct from the iron blast furnace process. It is a recycled, environmentally friendly product. Applications Heidelberg Materials Slag Cement is featured in a wide range of concrete and geotechnical applications including: ready mixed concrete, pre-cast, tilt-up,
In this experimental investigation iron slag rendered as scrap was used as coarse aggregate in place of crushed stone in the preparation of concrete. Concrete containing iron slag in various percentages of 25, 50, 75 and 100 was prepared and tested for its compressive and split tensile strength.
The guide covers information on slag cement chemical properties and product types, storage, handling, batching, proportioning, and the effects on properties of fresh and …
