Bachelors Theses
Abstract
"An abundant amount of chats and clays of various kinds is available in Missouri. In the mining districts of south-eastern and south-western Missouri enormous piles of gang known as chats have accumulated. The mining companies desire to rid themselves of this accumulation and would dispose of the chats at a very low price. In northern Missouri and in the diaspore district of central Missouri suitable clays could be found which may be had for a small royalty, mining and transportation costs. Some of the requirements for roofing granules are that they have (1) a size limited by 10 and 30 mesh Tyler screens; (2) permanent and uniform color; (3) low reflectivity and low absorption; (4) resistance to freezing and thawing; (5) ability to be wetted and embed well in hot asphalt; (6) such a composition that it will not effloresce due to soluble salt content in moist climates and; (7) especially it should have a low production cost"--Introduction, page 1.
Advisor(s)
Dodd, Charles Mitchener
Department(s)
Materials Science and Engineering
Degree Name
B.S. in Ceramic Engineering
Publisher
Missouri School of Mines and Metallurgy
Publication Date
1936
Pagination
ii, 20 pages
Geographic Coverage
Missouri
Rights
© 1936 Morris H. Grober, All rights reserved.
Document Type
Thesis - Open Access
File Type
text
Language
English
Subject Headings
Diaspore clay -- MissouriMines and mineral resources -- MissouriRoofing
Thesis Number
T 0000 41
Print OCLC #
26970580
Electronic OCLC #
649474002
Recommended Citation
Grober, Morris Harold, "Roofing granules" (1936). Bachelors Theses. 59.
https://scholarsmine.mst.edu/bachelors_theses/59
