A?pumping test?is a field experiment in which a well is pumped at a controlled rate and water-level response (drawdown) is measured in one or more surrounding observation wells and optionally in the pumped well (control well) itself; response data from pumping tests are used to estimate the hydraulic properties of aquifers, evaluate well performance and identify aquifer boundaries.?Aquifer test?and?aquifer performance…
Soil resistivity testing is the process of measuring a volume of soil to determine the conductivity of the soil. The resulting soil resistivity is expressed in ohm-meter or ohm-centimeter. Soil resistivity testing is the single most critical factor in electrical grounding design. This is true when discussing simple electrical design, to dedicated low-resistance grounding systems, or to the far more…
Rebound Hammer test is a Non-destructive testing method of concrete which provide a convenient and rapid indication of the compressive strength of the concrete. The rebound hammer is also called as Schmidt hammer that consist of a spring controlled mass that slides on a plunger within a tubular housing. The operation of rebound hammer is shown in the fig.1. When…
The first test to be carried out before?construction?is the?soils safe bearing capacity. It is a preliminary test that must be carried out before the construction of any?structure. It is recommended that the?safe bearing capacity of the ground be tested at all points of the foot. The safe load to be taken on the soil for design purposes is called the…
After map study, engineering or field survey are carried out to finalize the highway alignment. The object of these surveys is to locate the alignment of a road which provides maximum transportation facilities with the minimum cost of construction and maintenance.
An?ultrasonic pulse velocity (UPV) test?is an?in-situ,?nondestructive?test to check the quality of?concrete?and natural rocks. In this test, the strength and quality of concrete or rock is assessed by measuring the velocity of an?ultrasonic pulse?passing through a concrete structure or natural rock formation. This test is conducted by passing a pulse of ultrasonic through concrete to be tested and measuring the time…