Abstract
A method for testing the amount of cement in products made of cement–sand mixture based on the parameters of elastic-plastic insertion of a spherical indenter is described. It is shown that for materials made of cement–sand mixture in a sufficiently wide range of variation in the depth of residual prints and contact loads during the insertion of a spherical indenter, a linear dependence of the residual print depth on the load is valid. This has made it possible to use the regularities of plastic hardness for the developed testing method.
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The work was carried out within the framework of the MK-2021 competition, grant of the President of the Russian Federation no. MK-84.2021.4.
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Matlin, M.M., Kazankina, E.N. & Kazankin, V.A. Testing Composition of Cement–Sand Mixture by Indenting. Russ J Nondestruct Test 58, 745–751 (2022). https://doi.org/10.1134/S1061830922080071
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DOI: https://doi.org/10.1134/S1061830922080071