Experimental investigations on durability characteristics of ground granulated blast furnace slag mortar

• Published in: E3S Web of Conferences Vol. 347; p. 2007
• Main Authors: Elsa Thomas, Geethu, P.V., Indira, A.S., Sajith
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Les Ulis EDP Sciences 01.01.2022
• Subjects: Abrasion; Abrasion resistant steels; Blast furnace chemistry; Blast furnace practice; Cement; Chloride ions; Chloride resistance; Concrete; Durability; Effective porosity; GGBS; Granulation; Iron and steel plants; Life cycles; Mortars (material); Porosity; Portland cement; Portland cements; Pozzolans; Slag; Water absorption
• ISSN: 2267-1242; 2555-0403; 2267-1242
• DOI: 10.1051/e3sconf/202234702007

Ground Granulated Blast furnace Slag (GGBS), a waste product from steel plants, can be effectively utilized as a pozzolanic material and can be used as a partial replacement to cement leading to sustainable construction practice. Mortar is usually used as a binding and plastering material; hence the chances of exposure to a damaging environment are high than concrete. GGBS mortar should be examined for durability from weathering action, chemical attack, and abrasion to ensure a long-life cycle and less repair and replacement in structures. The present paper is an experimental investigation of the durability properties of GGBS mortar by considering the parameters like water absorption, effective porosity, sorptivity, chemical attacks, abrasion resistance, and chloride ion resistance. This study involves the replacement of Ordinary Portland Cement (OPC) with GGBS in 10%, 20%, 30%, 40%, 50%, 60% and 70%. The test results are compared with OPC mortar and observed a significant enhancement in the durability characteristics of GGBS mortar. Also, it is observed that 50% replacement of cement with GGBS gives an optimum mix considering the strength and durability characteristics.