Journal ArticleDOI
Chloride-induced corrosion of reinforcement in low-calcium fly ash-based geopolymer concrete
Mahdi Babaee,Arnaud Castel +1 more
TLDR
In this article, the performance of chloride-contaminated reinforced GPC specimens manufactured using a blended low-calcium fly ash and slag cement is investigated by long-term monitoring of corrosion parameters such as open circuit corrosion potential, polarization resistance and Tafel slopes.About:
This article is published in Cement and Concrete Research.The article was published on 2016-10-01. It has received 127 citations till now. The article focuses on the topics: Fly ash & Portland cement.read more
Citations
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Recent progress in low-carbon binders
Caijun Shi,Bo Qu,John L. Provis +2 more
TL;DR: The development of low-carbon binders has been recognized as a means of reducing the carbon footprint of the Portland cement industry, in response to growing global concerns over CO2 emissions from the construction sector as mentioned in this paper.
Journal ArticleDOI
Durability of alkali-activated materials in aggressive environments: A review on recent studies
TL;DR: In this paper, the authors reviewed factors influencing water absorption and permeability of AAMs, effect of gel composition and exposure environments on carbonation, chloride penetration, and chloride migration test methods, and sulfate resistance in high-calcium and lowcalcium alkali-activated systems.
Journal ArticleDOI
Synthesizing one-part geopolymers from rice husk ash
TL;DR: In this article, one-part geopolymers were produced from rice husk ash (RHA) and sodium aluminate, and investigated by XRD, ATR-FTIR, SEM and compressive strength testing.
Journal ArticleDOI
Chloride-induced corrosion of steel rebars in simulated pore solutions of alkali-activated concretes
TL;DR: In this article, the passivation and chloride-induced depassivation of steel rebars immersed in varying alkaline environments (0.80 m, 1.12 m and 1.36 m NaOH solutions), simulating the pore solutions of low-Ca alkali activated concretes, were investigated using a range of electrochemical techniques.
Journal ArticleDOI
Chloride induced corrosion in different fly ash based geopolymer concretes
TL;DR: In this paper, the long term corrosion condition of embedded rebar in fly ash geopolymer concretes containing cast in chlorides (0−5%) subjected to wet-dry cycles, together with specimens exposed to ponding in 3% NaCl were examined.
References
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Book
Electrochemical Methods: Fundamentals and Applications
Allen J. Bard,Larry R. Faulkner +1 more
TL;DR: In this paper, the authors present a comprehensive overview of electrode processes and their application in the field of chemical simulation, including potential sweep and potential sweep methods, coupled homogeneous chemical reactions, double-layer structure and adsorption.
Journal ArticleDOI
Electrochemical Polarization I . A Theoretical Analysis of the Shape of Polarization Curves
Milton Stern,A. L. Geary +1 more
TL;DR: In this paper, a linear dependence of potential on applied current is described for a corroding electrode by treating it in a manner analogous to that for a non-corroding electrode, and an equation is derived relating the slope of this linear region to the corrosion rate and Tafel slopes.
Journal ArticleDOI
Alkali-activated fly ashes: A cement for the future
TL;DR: In this paper, the mechanism of activation of fly ash with highly alkaline solutions is described, and the product of the reaction is an amorphous aluminosilicate gel having a structure similar to that of zeolitic precursors.
Journal ArticleDOI
The Role of Inorganic Polymer Technology in the Development of ‘Green Concrete’
TL;DR: In this paper, the potential position of and drivers for inorganic polymers (“geopolymers”) as an element of the push for a sustainable concrete industry are discussed.