Young’s modulus and Poisson’s ratio of the deformable cement adhesives

Science and Engineering of Composite Materials

卷:27

Chyzy Tadeusz¹  Karpiesiuk Jacek² 

[1] Bialystok University of Technology, Wiejska str. 45A, 15-351Bialystok, Poland;

[2] Government Building Expert in construction and building specialties, Poland, Member of the Polish Chamber of Civil Engineers, PhD st. Bialystok University of Technology, Bialystok, Poland;

关键词: young’s modulus;    poisson’s ratio;    cement adhesive;   

DOI  :  10.1515/secm-2020-0032

来源: DOAJ

【 摘 要 】

The article outlines the methods, which has designated Young’s Modulus and Poisson’s Ratio of deformable cement adhesives. These indicators are necessary for the strength calculation of the lightweight floor systems (LFS), that do not require screeds with and without heating, using the finite element method. It was noticed that the diagrams of the dependence the stress on deformation in deformable cement adhesives are similar to the model of the ‘Madrid parabola’ used in testing concrete and cement mortar. In order to determine that the theory of ‘Madrid parabola’ is correct, calculations were performed using the least amount of squares approximation method. The data of the experimental studies combined with the formula calculations, allowed the study to achieve a reliable result, together to determine whether the theory of relative approximation is correct or not. All these actions have allowed determining the smallest deformations εc2 in deformable cement adhesives type C2S1 and C2S2 and their compressive strength. Thanks, these two methods (experimental and calculation) the functions describing deformable cement adhesives are defined. They were named S1 and S2 Evola and can be used by designers and producers of floor systems that do not require screeds.

【 授权许可】

Unknown