During its latest standards development meetings, ASTM International committee C09 on Concrete and Concrete Aggregates celebrated its 100th anniversary. Speakers included past and current chairmen of C09. Work of said committee has been instrumental to success of concrete, ensuring quality, durability, and sustainability while also advancing application of new technologies in concrete industry. C09 currently has 1,400+ members from 62 countries and maintains portfolio of 176+ standards.