Topic for Concrete Strength Presumption using Rebound Hammer
-Comparison between Rebound Numbers using Various Hammers and Proposal of Requesting Method for Relationship between Rebound Numbers and Compressive Strength-
By N. Yuasa
Concrete Journal, Vol.48, No.12, Dec. 2010
- Synopsis
- This report offers the topics concerning the strength presumption using the rebound hammer. Firstly, this is deals with comparison between the rebound numbers using N-type Schmidt hammer, P-type Schmidt hammer and "Silver Schmidt" that is new Schmidt hammer produced. The requesting method for relationship between rebound number and compressive strength of concrete is not provided by JIS A 1155 "Method of measurement for rebound number on surface of concrete". So, the requesting method is discussed and proposed in this report.
- Keywords:
- concrete, rebound hammer, schmidt hammer, rebound number, rebound speed ratio, calibration
