000 00958nam a2200265 4500
001 00093041
003 PWmBRO
005 20190304151229.0
008 940905s1993 mdua b f00010 eng
110 2 0 _aUnited States.
_bBureau of Mines.
245 1 0 _aStrenght characteristics and air-linkage determinations for alternative mine seal designs /
_cby E.S. Weiss ... [et al.].
260 0 _aAvondale, Md. :
_bU.S. Dept. of the Interior, Bureau of Mines,
_c1993.
300 _a21 p. :
_bill.
440 1 _aReport of investigations ;
_v9477
650 0 _aMines and mineral resources.
650 0 _aConcrete mine stoppings (Mining)
_xTesting.
650 0 _aCement composites
_xTesting.
650 0 _aFoamed materials
_xTesting.
650 0 _aWood
_xTesting.
650 0 _aStrenght of materials.
650 0 _aCoal mines and mining.
700 1 0 _aWeiss, E. S.
830 0 _aReport of investigations (United States. Bureau of Mines) ;
_v9477
942 _2ddc
999 _c87102
_d87102