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Push Pull Testing For Highway Industry Supplying Calibrated Measuring Instruments. Mechanical Load Testing Methods For On Site Proof To Testing Requirements.
Push pull testing is normally conducted in order to gauge how strong the fixings are between a typical anchor and concrete.
Push pull testing procedures are conducted to BS5080 Part 1 standards.
Even though materials used for bonding may be different, it is important to note that testing for bonding strength is an universal principle.
Push pull testing and tensile strength testing is usually performed because many factors which counter the proper bonding of the fixings. The greatest concern is that weaknesses may pass unnoticed when only visual inspection is conducted. Some of these factors are: degraded strength of the bonding material caused by low temperature, frost, or when water infiltrates into the joining compound. Another reason for poor surface bonding strength is as a result of smooth side walls.
The entire strength of a whole set of fixings may be weaker so as to loose the integral strength of the structure due to the essential bonding materials being weak. Ultimately, this may cause the construction malfunctions leading to disastrous consequences. Push pull testing means early diagnosis of such problems. Because of this, constructors are able to fix the problems. Early fault detection mitigates future higher costs. It also gives an assurance of any fixings overall strength.
Push pull testing can be carried out either on large scale or a smaller intensive batch. Testing always entails duplication of the design maximum stress levels planned in construction as stipulated by the standards of the industry. This is not destructive testing so the maximum loads applied together with the sample size are decided upon by the on-site engineers.
Push Pull Testing is a sampling as a quality assurance measure. Should problems be found then the Pull Out Testing can be used to rapidly find out the severity of any identified problem.
Quicker Pull out testing (larger sample testing) can be applied in instances when the costs of the large scale is far reaching and faults have been detected.
Pull Out Tests are for strength testing only and will only show the pass or fail of maximum loads being tested. The test methods are identical as Push Pull Tests but only the pass or failure is recorded. While the Push Pull Tests can find problems the rapid Pull Out Tests can quickly find out the extent of such problems.
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