Investigation of the Mortar and Concrete Resistance in Aggressive Solutions
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Testing the influence of two aggressive solutions - sulphate and nitrate on mortar and concrete was presented in this paper. Experimental work included testing of mortar prisms with 5 % special admixture. Also, four types of concrete were exposed to aggressive solutions. The chemical resistance was tested according to the Koch-Steinegger method. As a condition for resistance in aggressive solution means that flexural strength of mortar prisms is no less than 70 % of referent prisms cured in water it can be concluded that mortar and concrete made with combination of cement and admixture presented in this investigation are not resistant to ammonium nitrate solution, but are resistant to sulphate corrosion.
Keywords:chemical aggression / concrete / Koch-Steinegger method / mortar
Source:Tehnicki Vjesnik = Technical Gazette, 2014, 21, 1, 173-176
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