Sources: ASTM International, West Conshohocken, Pa.; CP staff
ASTM Committee C27 on Precast Concrete Products is set to publish a standard (C1889) for designing drainage and utility infrastructure. The document essentially codifies requirements for precast structures from American Association of State Highway and Transportation Officials load and resistance factor design (LRFD) specifications, and also addresses soil, hydrostatic, surcharge plus other loads.
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