Cocrete Compression Test Break types
Cocrete Compression Test Break types
(OP)
Greetings All
I am the Manager of a testing firm in OH and I am trying to exsplain the types of breaks that are desired as a result of testing a concrete 6x12 cyl to failure. There is a discussion as to what is best a conical break or sheer and or splintering concrete (col break) Keep in mind all that this is 3000 - 4000 psi concrete
Please provide references for the type if failure
Robert
I am the Manager of a testing firm in OH and I am trying to exsplain the types of breaks that are desired as a result of testing a concrete 6x12 cyl to failure. There is a discussion as to what is best a conical break or sheer and or splintering concrete (col break) Keep in mind all that this is 3000 - 4000 psi concrete
Please provide references for the type if failure
Robert





RE: Cocrete Compression Test Break types
RE: Cocrete Compression Test Break types
Most of these variations (while still achieving some variant on the cone shape) are minor and the end result is an insignificant effect on the macro-strength. As the failure mode deviates more from the cone, the significance becomes greater, leading to an appearance of erratic strength. These can be caused by internal physical specimen variations (voids, aggregate distribution, microcracking, etc.), variations in moisture content through the specimen during curing, variation in load application speed, variations in load distribution at the top and bottom of the specimen and others.
Achieving the "double cone" failure shape is a good indication of procedure consistency in making the specimen, curing, and testing. That leaves only variations in the actual strength of the concrete to explain differences in the observed strength values.