Papworths Construction Testing Equipment

Choosing and Setting up Sonic Test Equipment for Different Tasks Ultrasonic Pulse Velocity (UPV) testing is on of the most well known and understood sonic measurement techniques used over concrete. This article discusses a few different application, talking specifically about the right transducers and the access needed to complete testing successfully. Ultrasonic Pulse Echo (UPE) equipment is comparable, but only requires access to one side of a structure to be used, and takes advantage of the unique properties of point contact shear wave transducers to enhance imaging and datalogging potential. Most UPV tests are completed using Compression wave energy, the same energy as caries sound through the air, but it is also possible to complete tests with shear wave energy, which has a different slower velocity compared to compression waves. Specialised transducers are required. The vast majority of UPE equipment uses shear wave energy, in particular array systems take advantag

A moisture meter is an important instrument which is used in various industries. It is used for finding a   level of moisture content in the materials. The authorities who build homes and buildings, solely rely on these instruments to find out the moisture level in the soil. It helps in identifying the possible problems and damage to the structures due to the moisture in the material. Flooring contractors use these moisture meters for determining an   ideal conditions while fixing a floor over the concrete slab or another floor. Most of the moisture meters are used to calibrate with wood and provides a more precise reading in case of moisture content in the wood. The ranges of this scale vary from 5% to 40%. When the moisture content in materials other than wood is detected, a scale of 0 to m100 is generally used. Here 0 is the bone and 100 is saturated. Moisture meters include LED indicators. These indicators are linked to the reading in percentage form for dry, medi

This is a test to measure the penetration strength of ground, subgrades and base courses during new roads constructions. It was developed by California Department of Transportation to make sure roads are constructed on perfect areas of the earth. The first step is to measure the pressure needed to penetrate soil or surface in a bid to avoid unnecessary destruction of land.  ASTM Standards D1883-05, D4429 and AASHTO T193 are the standards used in describing perfect CBR outcomes on soils and rocks. Importance of CBR Test You have found roads degrading in quality and cracking easily after some time of usage. That is simply due to the weight being exerted on that particular road by the vehicles passing on it. CBR is used to measure the load bearing capacity of soils in a bid to construct roads that will be durable and safe for the purposed carriage means. It can even measure load bearing capacity of airstrips to make sure only the appropriate places can land in those areas withou

CBR stands for California bearing ratio; It is the penetration test which is used to evaluate the mechanical adaptability of the soil mass in the natural ground level. The rate is measured to assess the bearing capacity of the soil surface. The basic procedure of conducting the CBR test on the soil is as follows: Ø   First, weight of the empty mould is taken. Ø   And then, keep the spacer disc on the base plate and then place the filter paper on the disc and then fix the mould to the base plate with the plate inside a shape and append the collar over the mould. Ø   Add water to the specimen collected and then compact the same by the standard or modified proctor test. Ø   After the compaction, you need to remove the collar and then the surface needs to be levelled-up by using the cutting edge. Ø   Then the base plate needs to detach and removed from the spacer disc. Ø   Now take the total weight of the mould with the compacted specimen and then determine

Construction of a building begins below ground level – because that is where foundations are made. Foundations support the load of the entire building, and that is why every measure is taken to make sure that they are constructed right. Take piles, for example – once they are cast, there is no way of knowing if everything went alright. Earlier, in order to check if piles were casted right, they used to be pulled out – which defeated the whole purpose. These days, Ground Penetrating Radar is used to check consistency and homogeneity of anything that is underground in the construction industry. Principle of GPR GPR makes use of a high frequency radio signal. When you place the device on top of the structural element you want to examine, the device emits a radio signal which travels through the structure, and returns to the device. It works exactly like a radar or sonar – if there are any anomalies in the homogeneity of the structure, the behavior of the radio signal will show up