A controlled study of Moroccan concrete found that adding hooked-end steel fibres at 20 to 40 kg/m³ raised 28-day compressive strength from 26.0 to 34.5 MPa while slump fell from 6.0 cm to 1.5 cm.
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10 Durable Materials That Are Stronger Than Concrete
There are several different types of strength, not just one — and concrete, while it excels at some, falls far short in ...
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