Papworths Construction Testing Equipment

Tools and machines are an integral part of any production company and being a professional, you must know that if you don’t handle your machine well, you will end up making it a trash in a short span of time. So, if you deal with Concrete Moisture Meter and you want to increase its efficiency, you must take care of it and handle it with care. Rusted and brittle machines never give the performance that you require. In order to increase the efficiency and lifespan of your machines and tools here are the few tips that you can use and ensure long life and better functioning of the Concrete Moisture Meter (CMM). Scroll down and check out the few important tips. Modern tools including concrete moisture meters are commonly used in various industries and when handles roughly, it stops working properly. So the first thing you must do is keep the Concrete Moisture Meter safely in its case after you are done with the work. It helps in keeping the meter away from the dust, pollen and spore...

Half cell potential in general and technical terms, corresponds to a steady state of electrical current between metal dissolution and the equivalent reduction reaction, leading to the formation of OH- or ions hydroxyls from oxygen gas. In concrete, the dissolution zones are usually rather large (often a centimeter or more) and fixed. A current line or electric field connects the zones to areas where oxygen is reduced. For a given value of the potential, these electric fields are normal on equipotential surfaces, and can then be intersected by the concrete surface. The potential value can then be measured using a reference electrode on the surface of the concrete. Half cell potential is the parameter used or evaluating the steel reinforcement condition of the concrete. The corrosion of reinforcing steel is primarily an electro chemical process and the resulting behavior of the metal can be characterized and analyzed by determining and measuring its half cell potential. The gre...

Ultrasonic Pulse Velocity (UPV) testing of concrete elements is useful to evaluate quality and consistency of concrete, along with locate regions of bad consolidation, honeycombing or delamination due to corrosion. It is also possible to measure the depth of perpendicular cracks in the concrete. UPV testing measures the time of transit of an ultrasonic pulse between two test points. The pulse velocity is calculated upon the direct distance between the two test points. This velocity value is related to a number of material properties of concrete including the density and elastic modulus. There will also be a reduction in pulse velocity if there is damage to the concrete being tested or regions of bad consolidation. Conventionally UPV testing uses P wave transducers, that is it sends and receives compression waves. Shear wave transducers are also available, S waves are more slowly transmitted. Where P&S wave testing on lab samples is combined with measuring the density of a...

The type of tools you will need to test the concrete structure largely depends on the types of tests or evaluations you need to meet building standards and follow common construction practices. The following are some of the most common testing ways used by testing services, engineering firms, developers, and builders whenever building or testing: •    The Rebound Hammer Test – This test is performed to estimate the compressive strength of concrete using a rebound hammer. The rebound produced by aspring-loaded mass depends on how hard the stricken surface is. When the plunger of a rebound hammer is pressed against concrete, the mass, which is spring-controlled, rebounds—the extent of which depends on the hardness of the surface. The rebound value is taken and read from a graduated scale designated as the rebound index. This can be read directly from a graph on the body of the rebound hammer. •    The Core Cutting Test – This test is a partially ...

Since structural condition is of great concern to owners and users it is necessary to understand what lies inside them and where. Concrete geometry testing refers to the ability to find the location of steel reinforcing, post/pre tensioning, or conduits in concrete, or to measure the dimensions of a concrete element. Applications could include drilling a penetration (core) into a concrete slab, measuring the thickness of a slab or measuring the length of a pile. There are a lot of advantages associated with geometry testing of concrete. For instance, the thickness of a concrete element and its width are some of the major measurement indicators required during design and construction. With equipment capable of measuring concrete thickness, like the concrete thickness gauge, it becomes much easier and quicker to proceed with the work. The equipment is so portable that one can easily carry it to the specified testing area on a construction site. Advanced concrete geometr...

Vibrating wires principal is used for a wide range of monitoring devices such as strain gauges, piezometers and load cells nowadays. It is morereliable, has less drift and allows the users to have much longer cables than other sensors. One among the prominentVW concrete testing device can be the piezometer. The vibrating wire principles are known for the long term accuracy the offer, their multi gauge system, and also various data logger system they are compatible with. The vibrating wire strain gauge works based on the tensioned wire system. When the strain gauge is excited it vibrates with a resonant frequency, and this frequency is proportional to the length of the wire. When the wire is stretched the frequency changes proportionally to the amount of strain. The vibrating wires strain gauge can be used in various measurement applications such as: ·          Ground anchors  ·         ...