The article discusses the features of destructive and non-destructive testing methods in framework forensic construction technical expertise. Construction inspection buildings structures course expertise is aimed at determining characteristics actual condition, both structure itself its individual elements structures. Conducting objective reliable research not possible without accurate measurem...

To assess the condition of structures buildings and it is necessary to perform a comprehensive analysis factors affecting their performance characteristics - concrete strength, thermal conductivity humidity concrete, frost resistance, water resistance. However, with variety controllable parameters control strength takes special place because main factor structure estimation correspondence actua...

Non-destructive eddy current testing (ECT) is widely used to examine structural defects in ferromagnetic pipe in the oil and gas industry. Implementation of giant magnetoresistance (GMR) sensors as magnetic field sensors to detect the changes of magnetic field continuity have increased the sensitivity of eddy current techniques in detecting the material defect profile. However, not many researc...

Non-destructive test methods are often used in tunnel construction to check the required lining thicknesses. Hereby, mostly ground penetrating radar, impact-echo and ultrasonic echo are applied. However, the current knowledge and experience is largely limited to testing the concrete thickness of double-shell tunnels. Problems with the application of non-destructive test methods can arise, when ...

THE RELEVANCE of the work lies in need to control cutting inserts metalworking tools, which are widely used today production and machining products for various purposes mechanical engineering. The carbide plates involves a number operations: obtaining fine powders, mixing them certain proportions, shaping, followed by pressing sintering. Violation technology at least one considered operations l...

INTRODUCTION Shotcrete lining forms an integral part of conventional tunneling and is widely applied for underground excavations. Early strength gain of the shotcrete is a crucial aspect for ground support and safety of operatives. Strength requirements are dependent on various factors such as lining thickness, ground type, excavation size and tunnel depth. The early strength gain is typically ...