A STATISTICAL STUDY OF THE WEIGHT OF ZINC COATING ON CORRUGATED METAL PIPE

A STATISTICAL ANALYSIS OF THE THICKNESS OF GALVANIZED CORRUGATED METAL CULVERT PIPE IS REPORTED. RECORDS OF ROUTINE TESTS PERFORMED BY THE HEADQUARTERS LABORATORY OF THE CALIFORNIA DIVISION OF HIGHWAYS WERE ANALYZED. IT WAS CONCLUDED THAT THE THICKNESS OF GALVANIZING ON CORRUGATED METAL CULVERT PIPE BEING SUPPLIED MEETS PRESENT ENGINEERING NEEDS, AND THE PRESENT AASHO SPECIFICATIONS ARE ADEQUATE. HOWEVER, A STATISTICAL CONTROL PROCEDURE WHICH WILL REDUCE INSPECTION AND TESTING COSTS HAS BEEN PRESENTED. RATHER THAN A LOT BY LOT ANALYSIS, THIS PROCEDURE, USING CONTROL CHARTS, PROVIDES THE ENGINEER WITH REASONABLE ASSURANCE THAT THE OVERALL PROCESS IS IN CONTROL. IT IS ALSO POINTED OUT THAT RESAMPLING OF MATERIAL WHICH FAILS TO MEET THE SPECIFICATIONS MAY ALLOW THE USE OF MATERIAL WHICH SHOULD BE REJECTED. /AUTHOR/

• Supplemental Notes:
  • No M&r 210338-2, 26 PP, 10 FIG, 4 REF, 3 APP
• Corporate Authors:

  California Division of Highways

  Bridge Department
  Sacramento, CA  United States  05914
• Authors:
  • Sherman, G B
  • Watkins, R O
  • Alexander, M L
• Publication Date: 1966-3-14

Subject/Index Terms

• TRT Terms: Analysis; Charts; Corrugated metal culverts; Corrugated pipe culverts; Galvanizing; Methodology; Specifications; Statistical analysis; Statistical quality control; Statistical sampling; Testing; Thickness
• Identifier Terms: American Association of State Highway Officials
• Old TRIS Terms: Control sampling
• Subject Areas: Data and Information Technology; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00217082
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 1 1971 12:00AM