Rolf W. Roley

Abstract

"The mining and production of coal by underground mining operations has long been recognized as one of this nation's most hazardous industries. Tabulated data from the State of Illinois, for example, reveal that in that State between 1882 and 1945 there have been 7,789 men killed in coal mining accidents of one form or another. Further inspection of the data indicates that 3,711 of these men were killed underground by falls of roof or rock….

As previously stated, this experiment was designed to determine whether or not any appreciable change in strength as measured by Transverse Breakage would result from moisture changes in mine atmospheres; therefore, after the sample specimen groups were prepared, they were placed under during conditions in these types of environment for curing:

  1. Under conditions of curing at room temperature exposed to normal air.
  2. Under conditions of curing at room temperatures in a confined atmosphere exposed to Calcium Chloride desiccant.
  3. Under conditions of curing at room temperatures in a confined atmosphere under condition of 100 per cent humidity"--pages 1, 12.

Advisor(s)

Forrester, James Donald, 1906-1979
Vine, William A.

Department(s)

Mining Engineering

Degree Name

Professional Degree in Mining Engineering

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1950

Pagination

v, 32 pages

Note about bibliography

Includes bibliographical references (pages 28-32).

Geographic Coverage

Illinois

Rights

© 1950 Rolf W. Roley, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Mine roof control -- TestingCoal mines and mining -- IllinoisShale -- Illinois -- TestingShale -- Moisture

Thesis Number

T 935

Print OCLC #

5982966

Electronic OCLC #

935923207

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Thesis Location

 
COinS