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Techniques for Constructing Concrete Block Stoppings.

Authors
Timko-RJ; Thimons-ED
Source
MISSING :29 pages
Link
NIOSHTIC No.
10003108
Abstract
The Bureau of Mines has evaluated several techniques that will enhance the airtightness of concrete block permanent stoppings used in mines for airflow control. These techniques have been combined to create three distinct stopping types, each with its own utility. This handbook describes the three types of stoppings and includes illustrated step-by-step instructions for their construction.
Publication Date
19830101
Document Type
IH;
Fiscal Year
1983
NTIS Accession No.
NTIS Price
Identifying No.
HB 1-83
NIOSH Division
PRC;
Source Name
MISSING
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