000 00737nam a2200229u 4500
001 01044621
003 PWmBRO
005 20240602103501.0
008 931126s1973 dcua b 00000 eng
010 _a93044329
020 _a0309021723
090 1 0 _b620.1/36/N277g
110 2 0 _aNational Research Council (U.S.).
_bHighway Research Board.
245 1 0 _aGrading of concrete aggregates :
_b10 reports prepared for the 52nd annual meeting /
_cNational Research Council U.S.
260 1 _aWashington :
_bHighway Research Board,
_c1973.
300 _aiv, 128 p. :
_bill.
440 0 _aHighway research record ;
_vno. 441.
650 0 _aConcrete.
650 0 _aAggregates (Building materials).
942 _2ddc
994 0 1 _a095720
999 _c76463
_d76463