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A Non-Destructive Impedance Method Using Resonance to Evaluate the Concentration of Steel Fibers in Concrete
(DE GRUYTER POLAND SP ZOO, 2018-10-08)
Steel-fiber reinforced concrete is a composite material characterized by outstanding tensile properties and resistance to cracking. The concrete, however, exhibits such characteristics only on the condition that the steel ...
Experimental determination of the initial compressive strength of concrete using a rebound test hammer
(IOP Publishing, 2018-07-16)
This paper deals with rebound hammer testing of concrete in the early stage of ageing. Six types of concrete were produced for the purpose of the presented experiment and differed in the water/cement ratio and were otherwise ...
Fiber-Reinforced Adhesive for Structural Anchoring
(IOP Publishing, 2015-11-02)
The topic of this paper is the glue-concrete interface of bonded anchors loaded by tension force. The paper is closely focused on bond strength experiments using high strength concrete up to class C50/60 or higher together ...
Rock Joint Asperities and Mechanical Strength of Concrete
(IOP Publishing, 2017-11-28)
Mechanical interactions between concrete foundations of large civil engineering structures (tunnels, bridges or dams) and the asperity surfaces of rock masses represent a useful topic for investigation. It is obvious that ...
Development of the Elastic Modulus of Concrete under Different Curing Conditions
(Elsevier, 2017-07-20)
The modulus of elasticity is a property of concrete, which is known for its high variability of values. A high enough value of the modulus of elasticity is a critical requirement in complicated concrete structures and in ...
Experimental assessment of the influence of multiple cyclic loading on the dynamic modulus of elasticity of concrete
(EDP Sciences – Web of Conferences, 2017-05-24)
The goal of the experiment was to determine the influence that cyclic loading has on concrete dynamic modulus of elasticity and compressive strength. Each test specimen was subjected to cyclic loading with the loading force ...
Determining fracture energy parameters of concrete from the modified compact tension test
(Gruppo Italiano Frattura, 2014-09-01)
The modified compact tension (MCT) test, though not yet recognized as a valid test for determining fracture energy of concrete, is believed to represent a plausible and suitable alternative versus other well established ...
Destructive and non-destructive assessment of the frost resistance of concrete with different aggregate
(IOP Publishing, 2018-07-12)
The paper focuses on determining the frost resistance of concrete using selected destructive and non-destructive test methods. The experiment was performed with four specially made concretes, which differed only in the ...
Experimental Analysis of the Development of Elastic Properties and Strength under Different Ambient Temperature During the Hardening of Concrete
(Elsevier, 2017-07-20)
This paper focuses on the experimental assessment of the degree to which continued exposure to low ambient temperatures influences the concrete modulus of elasticity and compressive strength. The elastic modulus is not a ...
Properties of concrete intended for further testing measured by the Impact-Echo and the ultrasonic pulse method
(IOP Publishing, 2018-07-16)
The aim of the paper is non-destructive measurement of differently degraded
specimens by high temperature intended for further testing of joints of stainless steel helical
reinforcement glued into the groove and differently ...