About this document

TM-Ring Test for TMT and QST Bars by Akankwasa Ronald is a document available to read on EtoBox.

This document summarizes a quality control test called the "TM-Ring Test" that is used to test the heat treatment of TMT (thermomechanically treated) steel reinforcing bars used in reinforced concrete. The test involves etching a sample cut from the rebar to reveal a darker outer ring corresponding to tempered martensite, with a lighter inner core. Acceptance criteria check that the rings are continuous, concentric, and have a uniform thickness between 7-10% of the rebar diameter. Passing the test confirms

Author

Akankwasa Ronald

Language

EN