UNITED STATES DEPARTMENT OF AGRICULTURE 
DEPARTMENT BULLETIN No. 1216 
Washington, D. C. T May, 1924 
TENTATIVE STANDARD METHODS OF SAMPLING AND TESTING 
HIGHWAY MATERIALS 
Adopted by the American Association of State Highway Officials ana approved by the Secretary 
of Agriculture for use in connection with Federal-aid road construction. 
CONTENTS. 
Introduction 1 
Methods of sampling and testing non- 
bituminous highway materials 2 
Methods of sampling and testing bi- 
tuminous highway materials 43 
Page. Page. 
Methods of sampling and testing 
drain tile ana culvert pipe 78 
Methods of sampling and testing me- 
tallic materials 84 
INTRODUCTION. 
The tentative standard methods of sampling and testing high- 
way materials set forth in this bulletin are those recommended 
by the committee on tests and investigations of the American 
Association of State Highway Officials. 1 They were adopted by 
the association at its annual meeting at Kansas City, Mo., De- 
cember 4 to 7, 1922. They have since been approved by the 
Secretary of Agriculture for use in connection with the adminis- 
tration of Federal appropriations for construction of the Federal- 
aid highway system, superseding, for this purpose, the methods 
described in Department Bulletin 949, Standard and Tentative 
Methods of Sampling and Testing Highway Materials. 
1 The membership of the committee on tests and investigations of the 
American Association of State Highway Officials follows : H. S. Matti- 
more, State Highway Department, Pennsylvania, Chairman; B. A. Auder- 
ton, United States Bureau of Public Roads, Washington, D. C. ; J. H. 
Bateman, Department of Public Works, Massachusetts ; J. B. Bragg, 
State Highway Commission, New Jersey ; A. V. Bratt, Department of 
Public Works, Massachusetts ; Shreve Clark, State Highway Commissi mi, 
Virginia ; H. F. Ciemmer, Department of Public Works and Buildings, 
Illinois ; W. F. Cooper, State Highway Commission, Louisiana : R. W. 
Crnm, State Highway Commission, Iowa; R. B. Dayton, State Road Com- 
mission, West Virginia ; R. B. Gage, State Highway Commission. New 
Jersey; C. A. Hall, State Highway Commission, Oregon: H. A. Hall. State 
Road Department, Florida ; G. W. Hutchinson, State Highway Commis- 
sion, North Carolina; F. II. Jackson, United States Bureau of Public 
Roads, Washington, D. C. ; A. N. Johnson. State Roads Commission, 
Maryland; F. C. Lang, State Highway Department, Minnesota: E. T. 
Maddock, Department of Public Works, California; J. II. Milburn, United 
States Bureau of Public Roads, Washington, D. C : J. B. Myers, Com- 
mission of Highways, New York; W. A. Norris. state Highway Deparl 
ment, Wyoming; R. L. Oberholser, State Highway Commission, North 
Carolina; W. F. Purrington, State Highway Department, New Hamp- 
shire: A. S. Rea, Department of Highways and Public Works, Ohio; C H. 
Scholcr, State Highwav Commission, Kansas: C. M. Strahan, State 
Highway Department, Georgia ; I). V. Terrill, Department of Stat-' Roads 
and Highways, Kentucky; M. II. Dlman, State Highway Depai 
Pennsylvania; C. G. Wickline, State Highway Department, Texas \ - 
Withey, State Highway Commission, Wisconsin. 
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