Splitting: strength

These tests are performed by loading the standard 6" x 12" cylinder by a line load perpendicular to its longitudinal axis. The tensile splitting strength in pounds per square inch (f ) can be defined as... 

For members subjected to bending, the value of the modulus of rupture % rather than tensile splitting strength f is used in design. The modulus of rupture is measured by testing to failure, plain concrete beams 6 in. square in cross-section having a span of 18 in. and loaded at two points, each 16 in. equidistant from the end supports of the beam (ASTM C-78). 

J. W. Obreimoff, The splitting strength of mica, Proc. Roy. Soc. Lond, A127 (1930) 290-97. 

CEN EN 12390-6.2009. Testing hardened concrete - Fart 6 Tensile splitting strength of test specimens. Brussels CEN. 

Figure 11.36 Relative splitting strength of specimens made of plain concrete and of SFRC after low temperature cycles, pc - Portland cement, pfc - blastfurnace slag cement, after Rostasy and Sprenger (1984).

Physical properties Compressive strength and splitting strength is measured,and non-evaporable water is detected. In addition, the pore size distributions of these samples are performed using mercury intrusion poro-simetry (MIP). 

The vibronic structure of a electronic state at variable strengths of the vibronic and spin-orbit coupling is presented in Figure 5. The splitting of the... 

Cohesive strength is the internal strength of an adhesive or the ability of the adhesive to resist splitting. Unlike tack and adhesion strength, cohesive strength is not influenced by the substrate. 

Dezincification is readily apparent, since the yellow colour of the brass is replaced by the characteristic red of copper, which may take the form of small plugs or of layers that in some cases can extend over the whole of the surface (Fig. 1.60). In plug-type dezincification a mechanically weak, porous residue of copper is produced, which may remain in situ or become removed by the pressure of water, leading to a perforation. In the layer type the transformation of the alloy into a mechanically weak layer of copper results in loss of strength, and failure may occur by splitting when the metal is subjected to water pressure or to external stress. 

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