UTILIZATION OF BLAST FURNACE SLAG IN CONCRETE - REVIEW

Abstract

The impact of silica fume on the strength development rate and durability of binary concretes containing low reactivity slag. Results show that silica fume moderately improves strength gain but significantly enhances durability and water demand. The use of blast furnace slag and fine aggregate in construction materials for cold weather conditions. It found that GBFS aggregate increased compressive strength, frost resistance, and enhanced resistance against sulfuric acid attacks, demonstrating its potential for use in cold weather construction. The durability and strength of coal gangue-based geopolymer concrete, revealing that proper GBFS content and alkali activator modulus can improve freeze-thaw resistance. Alkali activated Self-Compacting Geopolymer Concrete (SCGC) using Ground Granulated Blast Furnace Slag (GGBS) incorporated with 2% nano silica. The mix design with 16M alkaline solution and 500 Kg/m3 binder content exhibited the highest compressive, flexural, and split tensile strength at 90 days. The corrosion performance of recycled aggregate concrete, focusing on water to binder ratios and the impact of 50% ground granulated blast furnace slag. Showed that the addition of ground granulated blast furnace slag increased surface resistivity to 88 kΩcm and decreased carbonation resistance. This increased potential and decreased corrosion rate, indicating that the inclusion of ground granulated blast furnace slag in recycled aggregate concrete mixes enhances corrosion resistance. The impact of waste beverage glass on the performance of ground granulated blast furnace slag concrete mixes. Results show that waste beverage glass reduces workability but improves mechanical properties, while increasing water absorption.