改良プルオフ法による表層部コンクリートの強度評価に関する研究

概要

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Availability of modified pull-off test method was described, which enabled the measurement of strength at an arbitrary distance from concrete surface using a circular steel probe with a hollow cylinder. Experimental studies on this test method include the following contents: 1. Variations of pull-off tensile strength at each different distance of core with 50, 75 and 100 mm in diameter were analyzed in the case of mixtures using different maximum size of coarse aggregate. 2. Characteristics of pull-off tensile strength at each different distance were examined using specimens with a variety of mix proportion, age of test, cement type and moisture content. 3. Relations of the pull-off tensile strength versus the compressive strength, splitting tensile strength, pulse velocity, rebound number and pin penetration were examined. 4. The accuracy of prediction of compressive strength by the pull-off tensile strength was made clear and compared to those by above non-destructive testing methods.
社団法人日本建築学会の論文
1997-09-30