oa Civil Engineering = Siviele Ingenieurswese - Possible developments in pavement foundation design



Certain aspects of the C.B.R. test procedure and design standards are discussed and certain modifications are proposed with the object of simulating more closely anticipated service conditions, improving the accuracy of the results and reducing the amount of work involved in carrying out the test. The paper also descriptionbes an approximate correlation established between the C.B.R. and indicator test results, from which design charts may be prepared for estimating cover requirements when only the indicator test results are available. The measure of agreement between the C.B.R. method, the group index method and the interpolated design or cover charts is analysed statistically. The Author does not claim that the analysis is complete.


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