Evaluation of reactivity indexes and durability properties of slag-based geopolymer concrete incorporating corn cob ash

2020 ◽  
Vol 258 ◽  
pp. 119604
Author(s):  
Solomon Oyebisi ◽  
Anthony Ede ◽  
Festus Olutoge ◽  
Samuel Ogbiye
2020 ◽  
Vol 184 ◽  
pp. 01092
Author(s):  
M Niveditha ◽  
Srikanth Koniki

Geopolymer concrete is prepared by reacting silicate as well as aluminate consisting materials with a caustic activator. More often, waste materials such as GGBS, fly ash, slag from metal and iron production are used. Recent investigations adding new materials like Alccofine, which improves the properties of geopolymer concrete even at ambient temperature condition. This research paper presents a details literature survey on the durability properties of geopolymer concrete. Various research literatures are previewed on durability of geopolymer concrete with the addition of different supplementary cementious materials as their necessity is increasing due to insistent constituents. Past studies from the literature reviews suggested that replacement of cement with chemical and mineral admixtures enhanced the properties of strength and durability of concrete. The micro structures, Morphological structures by SEM, lower shrinkage, higher mechanical strengths, superior durability with environmental sustainability are observed. XRD studies shown enhanced polymerisation reaction which is responsible for development of strength. Elevated temperatures and Surface deterioration are controlled in GPC than OPC. Geopolymer concrete provides better resistance for specimens to chemical attack and also water absorption, sorptivity, porosity have good influence to the durability properties in ambient curing conditions compared to conventional concrete.


2020 ◽  
Vol 57 (5) ◽  
pp. 530-545
Author(s):  
Ramamohana Reddy Bellum ◽  
Karthikeyan Muniraj ◽  
Sri Rama Chand Madduru

Sign in / Sign up

Export Citation Format

Share Document