000			00487nam a2200145 a 4500
005			20220228110459.0
035			_aF8901000701212
084			_aCCA 45.034 1978
100			_aPerkins, Philip H.
245			_ause of portland cement concrete in sulphate-bearing ground -and groundwater / Philip H. Perkins.
260			_aLondon : Cement and Concrete Association
300			_a6 p.
440			_aAdvisory note ; 45.034 / Cement and Concrete Association
690			_aCemento portland - Usos.
999			_c53345 _d53345