Title: Development of Ground-Granulated Blast-Furnace Slag‑Dolomite Geopolymer Concrete
Author(s): Saranya P, Praveen Nagarajan, and A. P. Shashikala
Publication: Materials Journal
Appears on pages(s): 235-243
Keywords: dolomite; durability; geopolymer concrete; ground-granulated blast-furnace slag (GGBS); strength
Development of geopolymer concrete (GPC) with industrial by-products is a solution to the disposal of the industrial wastes, thus making the concreting process sustainable. This paper focuses on the development of GPC using ground-granulated blast-furnace slag (GGBS) and dolomite (by-product from rock crushing plant) as source materials. Strength properties of slag-based GPC are studied with different proportions of dolomite. It is observed that the addition of dolomite into slag-based GPC reduces the setting time, enhances workability, and rapidly improves the early-age strength. Addition of dolomite into slag GPC also improves the durability properties, such as high resistance towards water absorption, sorptivity, marine attack, and chemical attack.