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- W652563724 abstract "This study included the development of a purpose-designed tester with greater sensitivity, which was used to evaluate the accuracy limitations and size and shape effects. Seven Ontario rock types were machined into cores from 6.7 to 70 mm diameter, and crushed into aggregates from 6.7 to 26.5 mm. The programme included 735 tests on aggregate particles and 502 on core, with supplementary index tests and thin section studies. Results showed that some 15 to 20 particles can be tested in less than five minutes to give a strength value accurate to about plus/minus 20 to 50% of the mean. This accuracy can be improved by further modification of the tester. Size-strength effects deviated from those reported in the literature, probably because of measuring and platten friction inaccuracies. An interim size correction procedure is recommended that refers all results to a standard 20 mm diameter. It is also recommended that sizes in the range of 16 to 26.5 mm should be tested for the best results, although with an improved tester it should be possible to employ aggregate in the size range of 6.7 to 19 mm. (a)" @default.
- W652563724 created "2016-06-24" @default.
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- W652563724 date "1988-10-01" @default.
- W652563724 modified "2023-09-26" @default.
- W652563724 title "DEVELOPMENT OF A PROTOTYPE FOR POINT LOAD TESTING OF AGGREGATES" @default.
- W652563724 hasPublicationYear "1988" @default.
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