Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 85, Issue -, Pages 78-90Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2015.03.036
Keywords
Geopolymer concrete; Activator; Bond strength; Compressive strength; Durability
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An overview of advances in geopolymers formed by the alkaline activation of aluminosilicates is presented alongwith opportunities for their use in building construction. The properties of mortars/concrete made from geopolymeric binders are discussed with respect to fresh and hardened states, interfacial transition zone between aggregate and geopolymer, bond with steel reinforcing bars and resistance to elevated temperature. The durability of geopolymer pastes and concrete is highlighted in terms of their deterioration in various aggressive environments. R&D works carried out on heat and ambient cured geopolymers at CSIR-CBRI are briefly outlined alongwith the product developments. Research findings revealed that geopolymer concrete exhibited comparative properties to that of OPC concrete which has potential to be used in civil engineering applications. (C) 2015 Elsevier Ltd. All rights reserved.
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