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Carbonate concretions—explained
Geology Today, 2013Carbonate concretions are common features of sedimentary rocks of all geological ages. They are most obvious in sandstones and mudstones as ovoid bodies of rock that protrude from natural outcrops: clearly harder or better cemented than their host rocks. Many people are excited by finding fossils in the centre of mudstone‐hosted concretions (Fig.
Jim D. Marshall, Duncan Pirrie
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Researches on Concrete Carbonation
Applied Mechanics and Materials, 2013The cause and prevention of concrete carbonation are core issues in the engineering community. With the improvement of the global CO2 concentration, more and more reinforced concrete buildings are faced with the problems of carbonation acceleration and following threats of steel corrosion which will heavily undermine the safety and durability of R.C ...
Zhong Yuan Li, Zhu Jun Wang
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Evaluation of concrete cover depth for green concretes exposed to carbonation
Structural Concrete, 2020AbstractCarbonation resistance of fly ash concrete (FAC) and recycled aggregate concrete (RAC) has been extensively tested in the past decade, but there are still no recommendations for their application in codes of practice. Therefore, the main objective of this study was to determine the minimum concrete cover depth of RAC and FAC exposed to ...
Vedran Carević, Ivan Ignjatović
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Cathodic Protection of Reinforcement in Carbonated Concrete
CORROSION 1998, 1998Abstract The protection mechanism of cathodic protection applied to carbonated concrete structures have been investigated. Tests were carried out on reinforced concrete specimens with alkaline concrete, carbonated concrete and carbonated concrete with 0.4% chloride by cement weight.
BERTOLINI, LUCA +3 more
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Applied Mechanics and Materials, 2012
Concrete construction played a great role in the development of the society home and abroad especially when the developing country is at the high tide of capital construction, but its durability was affected in large measure of carbonization which has brought about huge loss in many fields like construction, water conservancy and transportation etc ...
Wei Tao Meng, Yong Xin Wu
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Concrete construction played a great role in the development of the society home and abroad especially when the developing country is at the high tide of capital construction, but its durability was affected in large measure of carbonization which has brought about huge loss in many fields like construction, water conservancy and transportation etc ...
Wei Tao Meng, Yong Xin Wu
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Carbonation and distressed concrete
Structural Survey, 1990Discusses the properties of concrete and the process of carbonation which can lead to corrosion and its ultimate destruction. Outlines the conditions which lead to carbonation, detailing design faults which facilitate the process, and suggests preventatives which can protect the surface.
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Carbon Sequestration In Concrete
2016Concern for the environmental impact of increased carbon dioxide in the atmosphere has focused attention on reducing emissions of both natural and industrial carbon dioxide. This thesis explores a method for inhibiting or preventing the oxidation of carbon in plant material by encapsulating biomass in a mortar composed of portland cement, natural sand,
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Relaxation for a Control Problem in Concrete Carbonation Modeling
SIAM Journal on Control and Optimization, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Toyohiko Aiki, Sergey A. Timoshin
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Mechanisms of Carbonation of Concrete
Concrete Journal, 2023I. Maruyama, R. Kurihara, N. Saeki
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Re-alkalisation of carbonated concrete — Effect on concrete properties
Construction and Building Materials, 1997Abstract Electrochemical re-alkalisation of concrete involves application of a direct current between an externally applied anode surrounded in a sodium carbonate electrolyte and the internal reinforcing steel. It offers a means of rehabilitating reinforced concrete in which carbonation has progressed so far that the steel is at risk of corrosion ...
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