Watershed Management Group, a Tucson-based nonprofit, initiated a research project with the ultimate goal of convincing Arizona building officials to accept non-code-compliant composting toilets—critical to potable water conservation in buildings—as an alternative to an onsite wastewater system.
User-friendlier language, provisions on alkali-silica reactivity and the absence of default requirements for slump are three of the changes in the latest update of ACI 301-16 Specifications for Structural Concrete, according to the American Concrete Institute.
The footbridges and rain garden along the undulating wood rain screen at the new Sandy Hook Elementary School in Newtown, Conn., are more than lovely landscaping.
Since Los Angeles joined San Francisco Bay Area cities last October in tightening seismic standards for non-ductile concrete buildings and multi-family, wood-frame structures with parking underneath (ENR 11/9/15 p. 16),
seismic retrofit work in those cities has been booming.
Code Requirements for Assessment, Repair and Rehabilitation of Existing Concrete Structures addresses spot fixes that might be needed after a structure has been in service.