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Topics In Concrete
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Q. What other uses are there for the pulse velocity?
A. Decreasing pulse velocity indicates a lower elastic modulus and hence is an indicator of deterioration. It is also an indicator of cracking; weak pulse signals at the receiver indicate an interrupted path between transducers. Care should be exercised because low velocity can be due to causes other than to a change in the material property, such as using an inaccurate path length in calculating the velocity.
References: SP-1(02); ACI 228.2R-13; ACI 437R-19; ASTM C597; ASTM C1383
Topics in Concrete: Nondestructive Testing; Testing of Concrete