blast-furnace slag

It has been constructed on foundations of ground granulated blast-furnace slag.

Key words: blast-furnace slag, concrete performance, supplementary cementing material.

Blast-furnace slags and fly-ash are by products that are already exploited commercially.

The materials used in the experiment were a concreting sand, a recycled concrete, and a blast-furnace slag.

Common crystalline constituents of blast-furnace slags are merwinite and melilite.

The company said the high Australian dollar had enabled it to more economically import clinker, cement and blast-furnace slag.

Uren founded Civil & Marine, a manufacturer of ground granulated blast-furnace slag, in 1955.

In his dissertation "Blast-furnace slags and their rational use" he had for the first time grounded the theory of production line methods in construction.

In a few cases, lightweight aggregates have been produced with additives such as fly-ash, blast-furnace slag or pumice.

The most commonly used cementitious materials nowadays are fly ash, silica fume, and ground, granulated blast-furnace slag.

Blast-furnace slag improves concrete performance and is produced in two forms - as a cementitious material and as an aggregate.

Ground granulated blast-furnace slag is not hydraulic on its own, but is "activated" by addition of alkalis, most economically using lime.

Key words: high-performance concrete, blast-furnace slag, sustainable development, superplasticizers, workability, durability, silica fume.

Cement (Portland cement, blast-furnace slag cement, fly ash cement)

Dial-a-Blend allows multiple cementitious product blending incorporating a combination of two to four constituents, including cement, blast-furnace slag, fly ashes and limes.

In the production of iron, molten blast-furnace slag floats on top of the molten iron in the furnace.

Economic Depending on the application, from 30 to 60% of cement can be replaced with supplementary cementing materials such as fly ash, blast-furnace slag, and silica fume.

Hargreaves also devised a method for recovering phosphorus from blast-furnace slag; the by-product, ferric chloride, was converted into ferric oxide and chlorine.

In addition, several rare mineral phases have been identified including oldhamite (CaS), previously known only from meteorites and blast-furnace slag, and an unknown copper-potassium selenide mineral.

This paper gives the results of laboratory invstigations to determine the mechanical properties and freezing and thawing durability of concrete incorporating a granulated blast-furnace slag from a Canadian source.

A comparison of the compressive strengths of concrete made with blast-furnace slag aggregate, and that with gravel and crushed limestone shows that slag concrete is stronger.

Key words: concrete, compressive strength, dry cast, early age properties, ground granulated blast-furnace slag (GGBFS), ultrasonic pulse velocity (UPV).

The performance of concrete, in terms of its placeability, physical properties, and its durability, can be enhanced by the use of slag-blended cements or separately added ground granulated blast-furnace slag.

Researchers from the University of Sheffield have found that plutonium-contaminated waste mixed with blast-furnace slag, turning it into glass in a process called vitrification, would reduce waste volume by 85 to 90 percent.

Blast-Furnace Slag -- Blast-furnace slag is formed when iron ore is converted to iron (called pig iron).