Скачать с ютуб Cross hole Sonic Logging Test in pile,CSL Test в хорошем качестве

Cross hole Sonic Logging Test in pile,CSL Test

Crosshole sonic logging (CSL) is a method to verify the structural integrity of drilled shafts and other concrete piles. The CSL method is considered to be more accurate than sonic echo testing in the determination of structural soundness of concrete within the drilled shaft inside of the rebar cage. This method provides little indication of concrete soundness outside the cage. Also known as Crosshole Acoustical Testing, CSL normally requires steel (preferred) or PVC access tubes installed in the drilled shaft and tied to the rebar cage. Before the rebar cage is placed in the hole, the CSL access tubes are attached to the interior of the rebar cage. The cage is then lowered into the hole and the concrete is placed. Steel CSL tubes are preferred over PVC tubes because studies have shown that PVC tubes tend to debond from the concrete due to the heat of hydration process of concrete, resulting in erratic CSL test results. #cross hole sonic logging test for piles #csl testing drilled shafts #csl test for pile #cross sonic logging test #cross sonic logging #cross hole sonic logging cross hole sonic logging tubes #cross sonic logging test; sonic logging test #cross-hole sonic logging test email: [email protected]