GGBS Provides

• A means for best quality concrete.

• Fine, white to light gray abrasive powder.
• Bulk density about 1.1 to 1.2 Kg/Lit, Specific gravity 2.6 to 2.8

HOW GGBS IS USED

• In the concreting and building industry GGBS is used as a replacement for cement to improve the latter’s performance.
• It is used in cement and concrete mixes at a replacement level of 30-90% depending on application and technical requirements.
• Its use is covered in Indian concrete standard IS 456:2000, and IS 4926:2003, ready mix concrete.

TYPICAL SUBSTITUTION RATES

• RMC – 40-50% for most strength classes.
• Precast concrete - 30-70% depending on curing conditions.
• Mass concrete – for low temperature rise - about 60-80%
• Concrete for aggressive environment 50-80%

STORAGE, HANDLING, HEALTH AND SAFETY

GGBS is generally stored in watertight silos, extracted through fully closed dust free system and transported in bulk containers or jumbo bags.

GGBS is non explosive, non flammable but abrasive. It has dust nuisance value classification and all health and safety precautions as per portland cement have to be ensured.

QUALITY CONFORMITY WITH STANDARDS

GGBS fully meets IS 12089 (1987) specifications and the latest BS EN: 15167- 2006. It meets also the slag cement specifications BS:6699 (1992)

VIEW CERTIFICATE

Certificate 1

Certificate 2

APPLICATION

These include ready mix and site batched concrete, precast concrete, mortar, grout and other specialized applications. The largest amount of GGBS is taken by the ready mix concrete industry. GGBS is widely used in all types of concrete including high strength, lightweight aggregate and foamed concrete. GGBS is routinely used with water-reducing, super-plasticising and air-entraining admixtures as well as in concrete incorporating polypropylene and steel fibers.

GGBS APPLICATIONS IN CONSTRUCTION

Structural concrete Pre-stressed concrete For Sulphate Resistance Block making Soil stabilization Prevent Alkali Silica Reaction Resistance to Chloride attack Groutpacks Ready mix concrete

Foundations Post-tensioned concrete Mass concrete Site concrete manufacture Concrete roads Aggresive environment Cemented backfill General grouting

About GGBS:

GGBS is a fine white powder that is used in concrete as cement. In the production of ready mix concrete GGBS replaces a substantial portion of the Ordinary Portland Cement (OPC) content. This substitution can be in the range of 50-70 % depending on quality of materials used. Higher the proportion, the better is the durability. GGBS is also used in other forms of concrete including site- batched & precast.

LOWER COST OF CONCRETE:

This high quality slag saves in cost of mortar and concrete, a real value for money. GGBS concrete has lower life cycle cost, in addition to lower cost of construction.

SUPERIOR QUALITY OF CONSTRUCTION

Slag provides better strength over longer periods in addition to enhanced durability of concrete. It is best suited for mass concrete due to lower heat of hydration and prevention of microcracks. In blended cements it exhibits high sulphate and chloride resistance. It is also known to combat Alkali Silica Reaction (ASR) detrimental to concrete.

BETTER FINISH AND LOOK OF STRUCTURE

High fineness, good cohesive paste and smooth spread give excellent finish to mortar & concrete and improve the aesthetics of finished structure. Concrete shows no efflorescence and exhibits good pleasing colour.

IMPROVED WORKABILITY

Excellent void filling and coverage give good workability and placement of concrete. It is pumpable and does not bleed. It is easy to vibrate and compact the concrete.

ENVIRONMENTAL IMPACT

Ordinary Portland cement (OPC) replacement in mortar and concrete is a direct means to reduce overall Green House Gas emissions in construction activity. Carbon dioxide emission to the environment and hence air pollution is lowered.

SUSTAINABLE DEVELOPMENT

Recycling of large volumes of a by-product, considerable saving in the use of fossil fuels and hence conservation of energy and mineral resources for the construction industry lead to sustainable development