Allied Services

Pullout Test for Rock

The pull-out test is a relatively very simple and fast test.The equipment used for this test is a simple hollow hydraulic jack of requisite capacity. The hollow jack is lowered onto the anchor bar, grouted into place. A steel plate is welded or locked by mechanical means, on top of the anchor bar, just above the ram of the jack. For ascertaining the tensile load that shall be taken up by the Passive Steel Anchor, Pull out tests are conducted on the anchors.

Pile Integrity Test

A pile is a slender element cast in the ground or driven into it. Since pile construction as well as the final product are mostly invisible, engineers have often questioned their integrity, i.e. their compliance with project drawings and specifications. In fact, experience has shown that in piles of all kinds flaws may occur. The purpose of integrity testing is to discover such flaws before they can cause any damage.

Historically, pile integrity was investigated by direct methods. These included external methods such as excavation around the pile and internal or intrusive methods, such as core-drilling . While excavation may be effective in exposing flaws in the outer part of the pile, it is usually limited to a depth of a few meters. Core drilling, on the other hand, can be carried out to a large depth provides full information, but only for a very small fraction of the pile volume.

Field CBR Test

The California bearing ratio (CBR) is a penetration test for evaluation of the mechanical strength of natural ground, subgrades and base courses beneath new carriageway construction.he test is performed by measuring the pressure required to penetrate a soil sample with a plunger of standard area. The measured pressure is then divided by the pressure required to achieve an equal penetration on a standard crushed rock material.