Evaluation of concrete pillars by means of drilled test samples: New contributions
DOI:
https://doi.org/10.3989/ic.1975.v28.i276.2798Abstract
The present work is a continuation of that which appeared in this Journal, no. 255, November 1973, on the subject of control of hardened concrete by means of drilled cores. The total amount of results obtained in the various tests are presented in the shape of tables and diagrams. For the tests pillars of structural size have been used. The studied subjects are resistance of the drilled specimens with regard to that of the column from which they are taken; and the variation of this resistance at changing humidity conditions and in relation to the extraction height above the column base. The second subject to be analized is the resistance loss of the pillars, after the drilled cores, with a diameter of 10 cm, have been extracted and after the resulting hollow has been filled up according to various methods. The research has been carried out in the laboratories of the Department of Structures of the College of Industrial Engineering in Bilbao and in the Testing and Industrial Research Laboratories «L. J. Torróntegui».
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