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    STUDIA CHEMIA - Issue no. 2 / 2014  
         
  Article:   ASPECTS OF IMPROVING CONCRETE DURABILITY.

Authors:  . 		 
       
         
  Abstract:   Concrete, under certain conditions, may degrade due to corrosion processes. Corrosion protection can be achieved by providing a suitable concrete composition. In this paper the influence of supplements, added to concrete preparation, in the hydration-hydrolysis processes during their setting and hardening, is presented (the evolution of the mechanical strengths). The influence of supplements on the concrete stability in aggressive environments is also studied (two solutions of (NH4)2SO4, with the following concentrations: C1 = 8.25 g/L – corresponding to a high chemical aggressive environment – XA3 [1], and C2 = 24.75 g/L, corresponding to an aggressive chemical environment three times as high). Finally, it is noted which supplements can improve concrete durability for use, without serious consequences, in the proposed highly aggressive environments.

Keywords: supplements, concrete, durability, aggressive environments
 
         
     
         
         
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