Tensile Strength Tests for Concrete and Fibre Reinforced Concrete

Abstract

The paper describes the differences in several test methods, which are used for tensile strength analysis of cementitious composites. It explains tests arrangement, their benefits and disadvantages. The conversion factors between detected strengths were quantified in experiments, depending on the particular composition of the composite.

Experimental Studies of Fiber-Reinforced Concrete under Axial Tension

“…Active work on the problem considered here is being carried out both in our country and in many countries of the world [6][7][8][9][10][11][12]. So, in works [6,7], the authors carried out axial tensile tests of steel fiber concrete "eights", the results of which are presented in graphical form.…”

“…So, in works [6,7], the authors carried out axial tensile tests of steel fiber concrete "eights", the results of which are presented in graphical form. The article [8] provides an interesting analysis of the differences between several known methods of tensile testing of dispersed composites. Test conditions, their advantages and disadvantages are discussed.…”

Approaches to Determine Material Model of Fibre Reinforced Concrete

“…If the linear behaviour is considered before cracking (acceptable idealization), both parameters can be determined by linear relations based on the measured loading forced Ft and specimen deflection δt. In principle, both arrangements make this possible, only the results show slight differences -see [3].…”

Steel fiber reinforced concrete tensile testing with eliminated lateral wall effect

“…Common beam tests to determine the residual tensile strength from the residual flexural tensile strength via conversion factors are inexpensive and require little effort, but do not reflect the fiber orientation and distribution and cannot correctly reflect tensile load‐bearing capacities. The direct determination via tensile test specimens is used almost exclusively for research due to the complex handling 18–20 . The more brittle the behavior, that is, with increasing the compressive strength of the concrete up to ultra‐high performance concrete (UHPC) is, the higher the requirements on the stiffness of the testing machine are.…”

“…The direct determination via tensile test specimens is used almost exclusively for research due to the complex handling. [18][19][20] The more brittle the behavior, that is, with increasing the compressive strength of the concrete up to ultra-high performance concrete (UHPC) is, the higher the requirements on the stiffness of the testing machine are. RILEM was one of the few institutions to publish a standardized tensile test for steel fiber reinforced concrete as part of the TC162-TDF recommendations in 2001.…”