Chloride ion penetration
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This paper reviews the durability of concrete containing pozzolans in marine environments, which mainly focuses on resistance to chloride ion penetration and sulfate attack. The results of previous literature showed that the main ions of seawater are almost similar but the salinity varies with location. The mechanism of chemical reaction between seawater and concrete was carefully reviewed and explained.
14p visharma 20-10-2023 5 3 Download
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For resource efficiency as well as recycling industrial solid wastes, this study investigates the use of ground granulated blast furnace slag (GGBFS) in the production of high-strength mortars.
6p vifred 23-12-2022 13 2 Download
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The potential use of locally sourced ground granulated blast-furnace slag (GGBFS) and commercial sodium sulfate (Na2SO4) in the development of an eco-friendly sulfate-activated binder (SAB) was investigated in this study. The influence of Na2SO4 contents (1.5, 3.0, 4.5, 6.0, and 7.5% by mass of GGBFS) as a crucial sulfate activator on mechanical strength and durability performance of the SAB samples was evaluated through the tests of compressive strength, porosity, chloride ion penetration, and ultrasonic pulse velocity.
11p haoasakura 30-05-2022 12 2 Download
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Water based polymer systems are often used for improvement in the properties of plain cement mortar or concrete. Presently, latexes of a single or combinations of polymers like polyvinyl acetate, copolymers of vinyl acetate–ethylene, styrene–butadiene, styrene–acrylic, and acrylic and styrene butadiene rubber emulsions are generally used. One of the limitations of these polymer systems is that they may re-emulsify in humid alkaline conditions. To overcome this problem, an epoxy emulsion based polymer system has been developed.
5p christian2605 11-10-2019 21 0 Download
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An important improvement in polypyrrole film protection efficiency of iron was obtained by doping the polypyrrole film during the synthesis with a surfactant as the dodecylsulfate. These counter-ions have a very weak mobility in the polypyrrole, which thus becomes cationic permselective. The chloride anions penetration in the films is hence strongly reduced.
5p uocvong03 24-09-2015 49 2 Download