Overview
Ground Granulated Blast Furnace Slag (GGBFS) is an industrial byproduct obtained by quenching molten iron slag from blast furnaces in water or steam, then drying and grinding it into a fine powder. This process yields a material with latent hydraulic properties that react with calcium hydroxide in the presence of water to form cementitious compounds. As a sustainable construction material, GGBFS has gained global recognition for reducing the carbon footprint of concrete production. It typically replaces 30-70% of Portland cement in concrete mixes, offering both economic and environmental benefits while maintaining or enhancing performance characteristics.
Physical and Chemical Properties
GGBFS exhibits unique physical characteristics including a glassy, granular structure with high surface area (400-600 m²/kg). Chemically, it primarily consists of calcium silicates (30-40%), aluminum silicates (8-15%), and magnesium silicates (5-15%), with small amounts of iron oxides and sulfur compounds. The material's pozzolanic activity depends on its glass content (typically >85%) and basicity index (CaO+MgO/SiO2+Al2O3 ratio). Unlike Portland cement, GGBFS demonstrates slower strength development but ultimately achieves comparable or superior long-term compressive strength, especially in marine environments due to its chloride-binding capacity.
Main Applications
In concrete technology, GGBFS serves three primary functions: as a cement replacement (20-80% substitution), as a durability enhancer for structures exposed to sulfates or chlorides, and as a thermal crack reducer in mass concrete pours. Major applications include marine structures, bridges, dams, and high-performance architectural concrete. The material also finds use in soil stabilization for road bases, as a raw material in specialty cements like supersulfated cement, and in waste treatment applications due to its heavy metal immobilization properties. Recent developments explore its use in alkali-activated binders as a complete cement alternative.
Safety and Storage
While GGBFS is classified as non-hazardous, proper handling precautions are necessary. The fine powder can cause respiratory irritation, requiring NIOSH-approved dust masks during bulk handling. Eye protection and gloves are recommended to prevent mechanical irritation. Storage requires protection from moisture to prevent premature activation. Bulk GGBFS should be kept in silos with desiccant systems, while bagged material requires palletized storage under waterproof tarps. Shelf life is typically 6-12 months when properly stored. Unlike cement, GGBFS doesn't harden when exposed to moisture but may develop reduced reactivity over time.
B2B Procurement Guide
When sourcing GGBFS, verify supplier certifications (such as ASTM C989 Grade 80/100/120) and request mill test reports for key parameters: chemical composition, glass content, fineness, and activity index. Consider logistical factors as most slag is regionally sourced due to transportation economics. For large projects, establish quality control protocols including frequent sampling and testing. Negotiate pricing based on annual volume commitments, with typical MOQs of 500-1,000 metric tons for bulk shipments. Evaluate suppliers based on consistent quality, reliable delivery, and technical support capabilities, especially for specialized applications like low-heat mass concrete.
Related Manufacturers
- 主营：黑色石子砾石、白色石子 白砾石、金刚砂喷砂除锈铜矿渣、五彩石彩石骨料 彩石、金刚砂耐磨地坪材料、玻璃砂 地坪玻璃骨料、贝壳砂 贝壳骨料、复合岩片 岩片地坪、锡钛合金 反光骨料、天然彩砂 砂基地坪、棕刚玉耐火材料喷砂、石英砂水处理喷砂除锈、白刚玉 耐火材料、玻璃珠 水洗石玻璃珠、染色贝壳砂 彩色贝壳、染色石子 胶粘石、玛瑙 玉石 圆形玛瑙、高岭土 煅烧高岭土、银色砂 铝色砂、烧结彩砂 烧结砂、夜光石 发光石子、玻璃砂 玻璃块、网红砂 染色沙
- 主营：海泡石粉、海泡石纤维、凹凸棒土、远红外陶瓷粉、珍珠岩、铝矾土粉、红土黄土粉、白黄色粘土粉、空心玻璃微珠、熟石灰、氧化钙、铁粉铁砂、S95矿粉、粘土球、氧化铁颜料、轻质碳酸钙、硅藻土、白炭黑、膨润土、火山石粉、伊利石粉、叶蜡石粉
- 主营：水洗石、鹅卵石、透水石、透水地坪、黑石子、白卵石、雨花石、洗米石、白石子、荧光石、玻璃砂、水磨石、圆粒沙、夜光石、圆粒砂、12-1520-30、深灰石子、庭院铺面、透水路面、装饰园林、园林景观、灰色石子、白色石子、白色砾石、树脂夜光
- 主营：石英砂、金刚砂、鹅卵石、金刚砂地坪材料、白卵石、白沙子、重钙粉、黄金砂、白云石、重晶石粉、珊瑚石、膨润土、玻璃珠、蛭石、雪花白、玻璃砂、发光石、轻钙粉、灰钙粉、蛭石粉、珍珠岩、夜光石、水磨石、火山石、铁粉
- 主营：玻璃微珠、白卵石、金刚砂、胶粘石骨料、透水地坪骨料、水磨石骨料、雪花白、五彩石、天然彩砂、天然岩片、云母粉/片、异性玻璃微珠、彩色玻璃砂、贝壳彩片、重钙粉、彩石、大玻璃块、萤石块/粉、岩片、超细蛭石粉
- 主营：天然彩砂、天然彩石、石英砂、磨石地坪骨料、撒石地坪石子、金刚砂、夜光石、烘干砂、夜光漆、彩色石子、卵石碎石、胶粘石石子、水洗石石子、磨石石子、岩片、云母片
- 主营：雪花白、汉白玉砂、天然彩砂、金刚砂耐磨地坪料、染色彩砂、金刚砂、玻璃砂、玻璃块、核桃砂、蛭石、云母、岩片、鹅卵石、彩砂石子、夜光石砂、火山石、分目河沙、假山石、石英砂
- 主营：火山石、石英砂、家用衣柜、环氧地坪、酒店地坪漆、水刷石石、彩色细砂、彩色玉米芯、花香樟脑丸、鱼缸水族箱、车载香薰石、坪专用原料、颗粒宠物垫料、保温防火园艺、颗粒除臭颗粒、涂料造景细砂、过滤多肉植物、除臭吸湿颗粒瓶、蔬菜栽培用基质
- 主营：鹅卵石、核桃砂、绘画石、玻璃珠、玫瑰盐石、火山岩板、彩色玻璃砂、园林绿化腐殖土、净水处理石英砂
- 主营：砾石、鹅卵石、豆石、地暖豆石、水洗石、洗米石、胶粘石、石子、黑色砾石、黑砾石、黑石子、黑色石子、变压器鹅卵石、水处理鹅卵石、白石子
- 主营：彩砂、金刚砂、鹅卵石、水磨石骨料、石英砂、滑石粉、河沙、水磨石、染色彩砂、金玉明砂、水洗石
- 主营：胶粘石、水磨石、水洗石
- 主营：石英砂、无烟煤、活性炭、沸石、火山石、增碳剂、堇青石粉、活性白土、硅藻土、高纯石英砂、椰壳活性炭、无烟煤滤料、煅烧高岭土、沸石颗粒、火山石颗粒、工业硅藻土、漂白土、萤石粉、米白圆粒沙、五彩玉石米、五彩玉石、硅酸铝纤维、重钙、轻钙
- 主营：地坪骨料、金刚砂磨料、喷砂除锈用砂料
- 主营：云母、蛭石、轮胎粉、彩砂、蛭石板、阻火模块、石英砂、无石棉矿物复合纤维、木质纤维、海泡石
- 主营：石英砂、石英粉、碳酸钙、白云石、白云石粉、重钙粉、轻钙粉、白沙、白石子、高岭土、煅烧高岭土、膨润土、氢氧化钙、染色石子、染色彩砂、麦饭石粉、凹凸棒土粉、蛭石粉、滑石粉、氧化钙、珍珠岩、硅藻土、白陶土、火山石、金刚砂、铁钢砂、鹅卵石、沸石粉、重晶石粉、长石、铝矾土
- 主营：氧化铁颜料、铁粉、膨润土、金刚砂耐磨地坪、珍珠岩、矿物纤维、木质纤维、硅酸铝纤维、海泡石纤维、云母粉
- 主营：轻骨料混凝土、轻质混凝土、轻集料混凝土、泡沫混凝土
- 主营：彩色石子、彩沙、有机覆盖物、火山岩、石英砂、彩色玻璃砂、蛭石、岩片、钙粉、鹅卵石、膨润土、粉煤灰、铝矾土、油田堵漏剂、高岭土、木粉、河沙、石膏粉、珍珠岩、陶粒、金刚砂