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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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Biochar-augmented carbon-negative concrete
Chemical Engineering Journal, 2022Abstract Biochar is a waste-derived carbon-based material that can sequester carbon. This study proposed a revolutionary design of carbon-negative concrete with a large volume of biochar incorporation and elaborated the roles of biochar in the cement hydration and microstructure development of biochar-augmented concrete.
Chen, Liang +8 more
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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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ICTIS 2011, 2011
The electrical and mechanical performance of carbon fiber (CF)/carbon black (CB) lightweight concrete (LWC) depends on CF content, preparation method and sand ratio. As CB content is 0.83 vol.%, CF content is more than 0.49 vol.%, and resistivity of CF/CB LWC is less than 102 Ω·cm, Compressive strength and flexural strength reach more than 30 MPa and 5
Mingqing Sun +3 more
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The electrical and mechanical performance of carbon fiber (CF)/carbon black (CB) lightweight concrete (LWC) depends on CF content, preparation method and sand ratio. As CB content is 0.83 vol.%, CF content is more than 0.49 vol.%, and resistivity of CF/CB LWC is less than 102 Ω·cm, Compressive strength and flexural strength reach more than 30 MPa and 5
Mingqing Sun +3 more
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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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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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Mechanical properties of carbonated concrete
Journal of the Chinese Institute of Engineers, 2003Abstract In this paper, mechanical properties of carbonated concrete were studied. Com‐pressive strength, splitting tensile strength, elastic modulus, bond strength and hardness for carbonated concrete subjected to various carbonation conditions were evaluated.
Jiang Jhy Chang +3 more
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Concrete carbonation in arid climate
Materials and Structures, 2002Fifty-four different concrete mixes were exposed to hot arid weather in Kuwait to monitor their extent of carbonation. Various parameters affecting carbonation such as water/cement ratio, cement content, type of cement, type and dosage of admixture, water-curing period, type of coating, and the addition of silica fume or pulverized fuel ash were ...
H. Al-Khayat, M. N. Haque, N. I. Fattuhi
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Carbon reinforced concrete and temperature
IABSE Reports, 2019<p>Carbon reinforced concrete — a combination of non-corroding carbon reinforcement and concrete — has been investigated for over 20 years and has been used extensively in construction practice for more than 10 years for new constructions and for renovation.
Frank Schladitz +2 more
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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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