Testing Interlayer Pull-off Adhesion in Concrete Floors by Means of Nondestructive Acoustic Method
نویسندگان
چکیده
Pull-off adhesion fb, in practice determined by the seminondestructive pull-off method, is a measure of the interlayer bond. It should be noted that the effectiveness of the pull-off method depends on the number of cores drilled. According to [1], one core per 3 m2 of floor should be drilled. Such a high density of cores drilled has a significant adverse effect on the condition of the tested floor surface. After the tests the areas of the floor damaged by drilling have to be repaired, which is a major drawback of the pull-off method.
منابع مشابه
Application of three-dimensional optical laser triangulation method for concrete surface morphology measurement
The proper preparation of the surface of concrete is an important stage in the construction and renovation of building structures. Before placing a concrete topping it is essential to determine the morphology of the concrete base surface. This paper describes a novel application of three-dimensional (3D) optical laser triangulation method for investigation of the concrete surface morphology. It...
متن کاملStudy of effect of paste volume, water to cementitious materials and fiber dosages on rheological properties and in-situ strength of self-compacting concrete
As a vibration- free concrete, self- compacting concrete (SCC) can be easily used in the absence of consolidation, therefore; it is a good option for repairing and retrofitting concrete structures. The quality of repair layer is highly effective on a successful repair. Accordingly, in this study, factors affecting the quality of fiber-reinforced self-compacting concrete repair layer, including ...
متن کاملTesting and numerical modelling of Steel-Concrete-Steel with stud bolts connectors subject to push-out loading
Steel-concrete-steel (SCS) sandwich panels are composed of two steel plates with low thicknesses and high densities and strengths and one thick layer between both plates with low strength and density known as core that is composed of concrete. Cohesive material-epoxy resin or shear connectors are usually used to connect the plates to the concrete core. SCS sandwich composites are being develope...
متن کاملAcoustic detection of apple mealiness based on support vector machine
Mealiness degrades the quality of apples and plays an important role in fruit market. Therefore, the use of reliable and rapid sensing techniques for nondestructive measurement and sorting of fruits is necessary. In this study, the potential of acoustic signals of rolling apples on an inclined plate as a new technique for nondestructive detection of Red Delicious apple mealiness was investigate...
متن کاملOperational and defect parameters concerning the acoustic-laser vibrometry method for FRP-reinforced concrete
Acoustic-laser vibrometry, a non-contact method for nondestructive testing, was studied by altering operational and defect parameters to determine their effects on measured signatures and system performance. The method detects delamination and voids in fiber-reinforced polymer reinforced concrete by vibrating the material with an acoustic excitation and measuring the vibration signature with a ...
متن کامل