Ref: Admix/GroundGranulatedBlastFurnaceSlag 鈥? PRODUCT DATA (706062)
GROUND GRANULATED BLAST
FURNACE SLAG POWDER
IT IS PRIMARILY USED AS A SUPPLEMENTARY
CEMENTITIOUS MATERIAL
PRODUCT OVERVIEW: As a low cost extender/filler, non-hiding
Ground Granulated Blast-Furnace Slag powder white pigment in bituminous concrete, baked
is a fine white dust. It is made from Blast- clay products, coatings, rubber, plastics,
Furnace Slag - a co-product of iron and steel adhesives, putties sealants, plastisols etc.
manufacture. Semi molten slag - the almost This product must be fully evaluated and
completely fused and vitrified matter separated confirmed for suitable use in these or any
during the reduction of metals from their ores - other industries/products.
issues from blast furnaces at BHP Newcastle,
Australia at a temperature of approximately USAGE AND APPLICATION:
1500潞C. This colour and physically changes the 1. CEMENT REPLACEMENT LEVELS:
material to solid granules. These light grey slag By varying the ratio of General Purpose (GP)
granules are subsequently dried and ground to a Portland cement to ground slag, it is possible
fine, even lighter, white shade powder in roller to optimise specific properties of concrete
mills. and mortars in both their plastic unset states
as well as their ultimately hardened states.
Slag powder consists mainly of calcium and
aluminium silicate and has a chemical 2. STRENGTH DEVELOPMENT:
composition not dissimilar to these respective Slag/GP Portland cement concrete develops
natural mineral materials and to hydrated mechanical strength at a slower rate
Portland cement. It is often mixed with fresh (strength gain VS time) after setting up to the
Portland cement powder in the manufacture of 28 day period. Later strengths are higher.
concrete, mortars, grouts etc. The mixed Typically 1, 3 and 7 day strengths are lower.
cementitious product is referred to as blended Comparable strength can usually be achieved
cement. around 28 days and subsequently Slag-GP
concrete develops higher strength.
USE AS:
As a partial replacement for or preferably an The setting time of a particular concrete mix
addition to the Portland cement binder design is usually increased compared with
component in concrete, concrete masonry, the same concrete strength grade using a
concrete pavers, concrete roofing tiles and particular grade and type of Portland cement
other concrete products, mortars, grouts, alone.
cementitious (cement-based) paints etc.
As a slow setting and hardening very low cost
binder when well mixed with smaller
quantities of lime (Calcium Hydroxide) and/or
other alkalies and water.
3. CURING PACKAGING:
Due to the slower hydration of Slay/GP It is available ex stock in nominal 40Kg paper
blends compared with pure GP cement sacks - 25 bags per tonne.
bound concrete, the retention of the original
mix water used to mix the concrete (ie. STORAGE:
鈥榗uring鈥?) is important in all environmental For maximum shelf life, slag should be stored in
conditions. It may be a critical requirement its original packaging, out of direct sunlight, in
in highly evaporative conditions such as in appropriate, dry conditions. Keep dry and store
hot, dry, low humidity weather or when drying in temperatures not exceeding 25潞C with low
winds pass over the freshly finished concrete humidity conditions in its original unopened
in any weather conditions - including packaging to extend shelf life.
conditions applicable in cold, normal humidity
weather! PRECAUTIONS:
Ground Granulated Blast Furnace Slag is a non-
Curing of freshly placed concrete should start hazardous substance and is classed as non-
immediately after the finishing procedures. dangerous goods, however, it is recommended
that the following Personal Protective Equipment
The curing should be continuous - (PPE) and precautions are followed when
preferably over a period of 28 days or more handling and using the product:
so that the design requirements for durability,
strength, stripping (de-moulding) time and Wear full overalls, gloves safety goggles and
serviceability will be met. a dust mask during mixing
Avoid skin and eye contact
The most practical efficient method of curing Always wash hands before eating, drinking,
is to spray freshly set concrete (about 3-6 smoking or using the toilet
hours after placement - depending on
concrete temperature and weather For further Health and Safety information,
conditions) with an application of a good, please refer to the Ground Granulated Blast
liquid, moisture evaporating-resistant, film- Furnace Slag Material Safety Data Sheet
forming, curing compound* (鈥榤embrane鈥? (MSDS), which is available from Ability Building
curing compound). Chemical Co.
133-135 Northern Road, West Heidelberg, Victoria, Australia, 3081
PH: 03 9457 6488 FAX: 03 9458 4683 EMAIL: service@abilityproducts.com.au
www.abilityproducts.com.au
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