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Rebound number and the quality of mine roof strata
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Compressive strength and rebound number of Quarry Dust Fine Powder (QDFP) concrete
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Among non-destructive tests for compressive strength, rebound number test and pulse velocity test are the most widely used methods. However, the non-destructive tests mostly used in Korea was developed by foreign country. Therefore, it is unreasonable to directly apply them to concrete structures in Korea. In accordance with the suggestion of Institute
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Revised Numbers Quicken the Pace of Rebound From Mass Extinctions
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