Document Type

Technical Report

Publication Date



Metallurgical and Materials Engineering, University of Nevada, Reno


The principal purpose of the cooperative agreement is to develop and continue providing the public and the Office of Repository Development (ORD) of the U.S. Department of Energy’s (DOE) Office of Civilian Radioactive Waste Management (OCRWM) with an independently derived, unbiased body of scientific and engineering data concerning the study of Yucca Mountain as a potential high-level radioactive waste repository. Under this agreement, the University and Community College System of Nevada (UCCSN) will perform scientific or engineering research, and maintain and foster collaborative working relationships between government and academic researchers. The following describes the objectives of Task 019 “Subsurface Corrosion Research on Rock Bolt System, Perforated SS Sheets and Steel Sets for the Yucca Mountain Repository” under the cooperative agreement. The objective of this task is to conduct corrosion research and predict the durability of rock-bolts and other underground metallic roof supports. Corrosion resistance of rock bolts (such as Swellex, CT, and hollow core anchor) made of high-strength low alloy steel, medium carbon steel (from the YM site), stainless steel, and other higher strength materials will be evaluated. In addition, investigators will examine underground tunnel roof support materials such as perforated stainless steel sheets, I Beams, and associated materials. The proposed research for this project is divided into eight different subtasks given as follows:

Subtask 1: Selection of New High Strength Steels, Stainless Steels for Rock Bolts, Steel Sets and Perforated Roof Supports

Subtask 2: Electrochemical Corrosion Tests

Subtask 3: Electrochemical Impedance Spectroscopy (EIS)

Subtask 4: Environmentally Assisted Corrosion Tests

Subtask 5: Hydrogen Permeation Studies

Subtask 6: Immersion Corrosion Tests

Subtask 7: Dry Oxidation Tests ASTM G-54

Subtask 8: Microstructure and Phase Characterization Studies

This task is an essential part of the program to enhance the collaborative ongoing research between the UCCSN and the YMSCO during the five-year period of the cooperative agreement.


Nevada – Yucca Mountain; Radioactive waste repositories; Rock bolts -- Corrosion


Engineering | Materials Science and Engineering | Metallurgy | Structural Materials




Task ORD-FY04-019
Document No: SIP-UNR-040
DOE/UCCSN Cooperative Agreement Number DE-FC28-04RW12232