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As a producer, I would like to learn more about adding silica fume to my mix. What are its effects and where can I get more information?
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Compressive strength is one of the most important measurements in manufacturing concrete. As a producer, I need to know whether this measurement is accurate. How can I be sure my concrete compressive strength results are correct?
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I've heard that the two-cone fracture pattern is typical when compressive-strength cylinders are tested. Does that mean any other fracture pattern indicates a testing or concrete problem?
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We recently supplied controlled low-strength material (CLSM) for backfill. Specifications called for a maximum 28-day compressive strength of 200 psi to allow excavation by backhoe at a later date. We designed for a strength between 50 and 150 psi, but cylinder breaks indicated compressive...
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