Pull and creep tests on gypsum-bonded roof bolts
By: by J.S. Hansen and S.J. Gerdemann.
Contributors: Gerdemann, S. J.
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;; 8937; Report of investigations (United States. Bureau of Mines) ;; 8937.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1985
Place of publication: Pittsburgh, Pa
Language: eng
Number of pages: 36
Subjects: Gypsum-bonded mine roof bolts -- Testing.
Notes: Includes bibliographical references.