Experimental Investigation on Strength Characteristics of Concrete Wall Colored Stones

The results of the study of the strength characteristics of concrete wall stones are presented. The results were obtained when testing wall stones according to the methodology of the updated state standard for testing the strength of wall materials. Statistical indicators that characterize the stability of the studied characteristics are calculated. Special computer programs are used to perform calculations and statistical data processing. To increase the architectural expressiveness in construction, wall stones with a textured surface are used, as well as colored ones, made of a concrete mixture with pigments or with the use of colored cements. A comparative analysis of the compressive strength of concrete wall stones, unpainted and colored, made of concrete mixtures with pigments, is carried out. For the production of colored stones, pigments of red, yellow and green were used. Recommendations on the organization of the technological process of production aimed at obtaining colored concrete with stable quality indicators are given.