BIOSTABILITY OF MODIFIEDCEMENT STONE TO THE MOLDY MUSHROOMS
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Abstract
The paper presents the results of studies of the biostability of cement stone, modified with the superplasticizer Stachement 2000M G30 and complex additives based on it. The degree of exposure of moldy mushrooms to cement stone was evaluated by immersing the samples in a model medium from solutions of three organic acids, which are the products of the vital activity of microorganisms. It is shown that samples of cement stone with complex additives are more resistant to the influence of an aggressive environment in terms of strength, weight loss and pH change of the model medium. It was found that the complex additives Stachement 2000M G30 (0,6%)+Na2SO4 (1%), Stachement 2000M G30 (0,6%)+KMnO4 (0,1%...0,3%) in optimal dosages have fungicidal action and allow to obtain a cement stone resistant to the effects of moldy mushrooms.
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References
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