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1904-1909
• Inaugural convention of the National Association of Cement Users (NACU) organized
Making concrete blocks, 1904
1904-1909
• Richard L. Humphrey chosen as first President
Richard L. Humphrey
1910-1914
• First “building code” appeared
• Name changed to American Concrete Institute
Grafton Bridge, 1910
1915-1919
• Leonard C. Wason, ACI’s second President
• ACI assists war effort; war curtails activities, convention delayed
U.S.S. Selma, 1919
1915-1919
• ACI headquarters established in Detroit; Harvey Whipple appointed Secretary
Harvey Whipple
1920-1924
• Committees arranged by groups and numbered for first time
• 20th anniversary of ACI; standard reinforcing bar sizes adopted
1925-1929
• Richard L. Humphrey leaves Board after 21 years, named the first ACI Honorary Member
• Membership passes 2000
Hangar at Orly Airport, 1921
1925-1929
• First edition of Concrete Primerby F.R. McMillan published
• The ACI Journal introduced and published 10 times per year
F.R. McMillan
1930-1934
• Depression brings cost cutting and reduction of Journalpages; budget cuts force limit on paper length
• Financial crisis continues; Journalissues reduced to five issues per year Hoover Dam, 1933
1935-1939
• Effects of the Depression diminish; membership level stable after losses during the Depression
• First Reinforced Concrete Design Handbook on working stress design published
Hangar in Italy, 1936
1940-1944
• First Building Code under ACI 318 issued; ACI Manual of Concrete Inspectionpublished
• ACI turns its attention to the war effort; speeding the results of important committee work into print given priority Self-propelled concrete ship
built during World War II (1942)
1945-1949
• First ACI Book of Standardsissued
• Technical Activities Committee (TAC) formed
ACI Committee 115 meeting, 1948
1950-1954
• Membership passed 5000; first joint committee formed with ASCE
• Harvey Whipple retired after 32 years; William A. Maples appointed Secretary-Treasurer
William A. Maples
1955-1959• Revised Building Code adopted with an appendix on
ultimate strength design
• ACI headquarters building erected in Detroit
ACI headquarters building, Detroit, Michigan, 1957
1955-1959
• First local chapter in Southern California organized
• Journal modernized by use of cover photo; membership topped 10,000
Sam Hobbs, Secretary-Treasurer of Southern California Chapter,
1958-1974
1960-1964
• Institute chapter formed in Japan
• First edition of Formwork for Concrete (SP-4) published
• New ACI logo and motto introduced
ACI’s new logo, 1964
1965-1969
• First commentary to the Building Code published; Institute income exceeds $500,000
• Book of Standardssucceeded by ACI Manual of Concrete Practice
Constructing Habitat ’67 in Quebec
1965-1969
• Katharine Mather, first female Board of Direction member
• First ACI educational seminar held
Katharine Mather
1970-1974
• Educational Activities Committee (EAC) formed
• Membership grade of Fellow established
CEB meeting at ACI, 1975
1975-1979
• Maples retires after 27 years; George F. Leyhbecomes Executive Director
• ACI’s 75th anniversary celebrated
• Concrete International first published
Smithsonian exhibit honoring ACI’s 75th anniversary, 1979
1980-1984• Local chapters total more than 50 with addition of new
chapters in Israel and Korea
• First student chapters established
• ACI certification program launched
Pasco-Kennewick Intercity Bridge
1985-1989
• ACI Structural Journal and ACI Materials Journal debut
• 10,000 technicians certified in the ACI Concrete Field Testing Technician Grade I program
1985-1989
• ACI 318 Building Code and Commentary appear side-by-side for first time
• Metric edition of 318-89 available
1990-1994• ACI assumes Secretariat for ISO/TC-71
• Manual of Concrete Practice available on CD-ROM
ISO Plenary Session
1995-1999
• Completion of new ACI headquarters
• ACI website launched
• George F. Leyh retires; James G. Toscasbecomes Executive Vice President
ACI headquarters, 1996
1995-1999
• Jo Coke becomes ACI’s first female president
• Concrete Repair Manual published jointly with the International Concrete Repair Institute
Jo Coke
2000-2004• 200,000 certification exams administered
• ACI 318-02 Building Code features most comprehensive revision of code since 1971
• First Structural Concrete in the Americas Workshop held with 14 countries participating
Structural Concrete in the Americas Workshop, 2002
2000-2004
• William R. Tolleynamed Executive Vice President
• U.S. House of Representatives passes resolution commending ACI on its 100th anniversary
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