GGBFS
GGBFS
Ground Granulated Blast-Furnace Slag (GGBFS) is a finely powdered by-product from iron production, used as a supplementary cementitious material in construction. It enhances concrete properties in various applications, such as granular pavement activation and high-performance concrete manufacturing.
GGBFS is produced by heating iron ore, limestone, and coke in a blast furnace at 1500°C, resulting in slag that, when cooled and ground into a powder, serves as a partial replacement for Ordinary Portland Cement (OPC).
GGBFS improves concrete quality both structurally and environmentally. It reduces permeability, making concrete more resistant to water and chemicals, especially in harsh environments like industrial or coastal settings. Its low heat of hydration minimizes the risk of thermal cracking in large pours, while lower shrinkage rates help prevent long-term cracking, ensuring durability and structural integrity.
High resistance to chemical impacts High resistance to Sulphate High durability High ultimate strength High workability Low hydration heat Low shrinkage Low permeability Low Carbon Emissions
Environmental Impact
GGBFS offers significant environmental benefits, reducing the reliance on Ordinary Portland Cement (OPC) and cutting carbon dioxide (CO₂) emissions.
Portland cement production is one of the largest sources of CO₂ due to high-temperature processes, while GGBFS, a by-product of iron production, utilizes waste material.
By using GGBFS in concrete, construction projects lower their environmental impact, conserve resources, and contribute to more sustainable practices, aligning with efforts to reduce industrial carbon emissions and support circular economies.
GGBFS Advantages
- High Resistance to Chemical Attack: GGBFS enhances the concrete’s ability to resist chemical degradation, particularly in environments where exposure to aggressive chemicals or substances is common.
- High Sulfate Resistance: It provides excellent protection against sulfate attack, making it ideal for use in foundations, marine environments, and wastewater treatment plants.
- Improved Durability: Concrete made with GGBFS demonstrates significantly higher durability, ensuring a longer lifespan of the structure with reduced maintenance requirements.
- Increased Ultimate Strength: The presence of GGBFS contributes to higher long-term strength compared to standard Portland cement-based concrete.
- Enhanced Workability: The finer particles of GGBFS improve the workability of the concrete mix, making it easier to handle and place during construction.
- Reduced Heat of Hydration: GGBFS produces less heat during the curing process, minimizing the risk of thermal cracking in mass concrete applications.
- Low Shrinkage: Concrete with GGBFS exhibits lower shrinkage, which helps prevent cracking and enhances the structural stability over time.
- Low Permeability: The reduced permeability of GGBFS concrete improves resistance to water penetration and chloride ingress, crucial in environments prone to moisture exposure.
- Reduced Carbon Emissions: By incorporating GGBFS, construction projects can reduce their carbon footprint, contributing to more sustainable building practices.
In conclusion, RWC GGBFS offers a range of structural, environmental, and long-term durability benefits, making it an ideal choice for modern concrete production, particularly in projects demanding high performance and sustainability.
Availability
92.6 lbs bags
Super Sack
Bulk
Meets ASTM specifications
