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What is a CBR Test?
CBR testing is the evaluation of soil strength in line with construction and pavement designs. In full, CBR means California Bearing Ratio given that the California Department of Transport first invented the test. Over the years, other countries picked up this test and made it a necessary procedure before any form of construction was signed off to begin.
Later on, the CBR test was officially marked as a standard procedure to be undertaken before any construction begun. The test analyses the resistance power to the penetration of a particular soil regardless of the soil’s components. The results are given the name, CBR.
Why is a CBR Test Necessary?
A lot of damages have been caused by starting construction on a soil that was not strong enough to hold the weight of the pavements being laid on it. Losses have been counted because of the same and reconstruction has had to be done. To avoid such undesirable outcomes, the CBR testing process makes sure that the soil can work well with the construction’s surroundings.
Sometimes the problem is not with the soil as such. But rather with the procedures taken during the construction that affected the tenacity of the soil. CBR testing helps to tell the best method to approach a project in line with weak and strong points of the soil.
Lastly, CBR testing ensures the professionalism of the constructors. When a construction follows the laid down procedures to make sure that everything runs according to plan, then nothing but success and durability of the structure is assured. Civil engineers have a reputation to maintain, for them to remain in business. It takes little precaution measures such as a CBR test to ensure that everything is working as it should.
Tools Required in a CBR Test
A CBR test should be conducted using high-quality pieces of equipment. It ensures that error is very little if at all there should be any. The common apparatus you will find on the field during this test include penetration plungers, spacer discs, dial gauges and several loading machines. Every piece of equipment has its special use, and it needs to be checked before the CBR test begins.
The checking ensures that the pieces of apparatus are not fault hence reducing the chances of unclear and unappropriated readings. Once they are checked to ensure that they can do what it is required, then the professional team in charge of doing the tests is good to do its job.
Plate Bearing Testing Bristol
Plate bearing testing is a bit different from CBR testing. While CBR testing focuses on the penetration power of the soil, plate bearing testing focuses on other aspects such as the soil layers and their ability to hold an intended project. It focuses on the soil structure, its uniformity and different compositions of the same. CBR testing does not give much concern about the layers of the soil if the penetration is good for the construction to stand.
Plate bearing tests are responsible for determining the bearing ability of soil for different stages of construction. It determines the workload to be put on the foundation and also the structural design recommended for a particular area. Some of the apparatus present in this activity will include proving rings, beams, pressure gauges, beaming plates and hydraulic jacks.
Apart from the materials and the sample space for testing, the person performing the activity must be well versed with the procedure. Accuracy will be determined by the brains behind the entire process as well.
When Do You Need to Perform a CBR Test?
CBR testing should be performed any time there is a form of construction to be done, especially if it is one for public use. Such projects include building car parks, footbridges, roads and highways.
Contact us today for CBR Testing Bristol
We are a team of Bristol based professional experts committed to giving you the most accurate CBR and plate bearing readings and advice. Call us today to book a consultation session.