Papworths Construction Testing Equipment

When reinforcing steel corrodes inside concrete, an electro-chemical process occurs and its characteristics can be identified with a half-cell potential (HCP) measurement, also known as a ‘half cell potential test’. HCP measures metallic corrosion to determine the regions of potential corrosion and the risk it can impose on the structure. Date interpretation is nuanced and specific to particular sites, but generally a more negative potential means a risk of corrosion occurring in unsaturated marine exposed concrete. To conduct the test, an electrode is used to form one part of the bimetal cell, while the reinforcing steel within the concrete serves as the other half. Silver/silver chloride in a potassium chloride solution or a simple Copper/Copper Sulphate cell is the ideal reference electrode for use on-site. An electrode that is made of copper/copper sulphate is widely used, too. An advanced half cell potential meter is a great instrument to have for a more reliable way to ...

The concrete compression test is conducted to determine the compressive strength of concrete structures. In a concrete compression test, a concrete specimen is formed into a cylinder or cube, allowed to set for a period of time and then tested in a laboratory using a specially designed machine. The size of the specimen depends on where the test is conducted. For instance, 150mm cubes are the norm in European and Asian countries and in Russia, while cylinders are used in Australia and the US.  Concrete specimens are typically created and cured for 28 days on-site before being sent to the laboratory to be tested, but there are times where the testing may occur after one, three, seven, or 14 days of curing. When the specimen is placed in concrete compression test machine, pressure is constantly applied until failure cracks appear, the machine will detect the rapid drop in pressure when a break occurs.  There are different  types of concrete compression test machine...

The universal testing machine is ideal for multiple testing applications where compressive and tensile tests must be conducted. Accessories for universal testing machines allow for a greater range of applications with one machine, such as flexural and CBR tests. Investing in a high-quality machine and the right accessories can help you save time and money in the long run, resulting in higher productivity and minimal downtime. All systems are automatic and come with suitable motor or hydraulic stages and control systems. A universal testing machine typically comes with platens that can be used for the compressive testing of specimens necessary for the machine's maximum load and a set of jaws for handling samples for tensile testing. Different kinds of universal testing machines offer unique features that may help you with multiple testing applications. A servo hydraulic machine for instance is ideal for testing different non-metallic and metallic materials. It can perform bend...