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concrete strength class c20 25 in psi

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what is c20/25 concrete? | Yahoo Answers Nov 01, 2009 · Concrete Grade C20/25 means Cylinder test strength 20Mpa (C = Cylinder); while the number on the right means cube strength test of 25 Mpa. Strength development in concrete - Understanding Cement Almost everyone interested in cement is also concerned to at least some degree with concrete strength. This ebook describes ten cement-related characteristics of concrete that can potentially cause strengths to be lower than expected. What is mean concrete class c35/20. Here C35 and 20 means? 7Mpa, or C7 concrete is roughly 1,000 psi, or just under half an imperial ton per square inch, ie, 1000/2240. C35 is therefore roughly 5,000 psi, or 2 tons per square inch.    Service Online

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