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| Lafarge to have key role in building transit center in Hillsboro  Lafarge North America's NewCem slag cement played a key role in building an innovative transit center in Hillsboro, OR, that was designed to incorporate sustainability throughout the facility's construction and operation. Slated to be one of the nation's most sustainable parking facilities, the intermodal transportation structure generates on-site renewable energy and is part of a wider transportation hub that promotes more sustainable modes of transport.The structure consists of concrete columns around the perimeter with interior post-tensioned cast-in-place concrete beams and post-tensioned concrete elevated decks. Serving Tuality Hospital, Pacific University's Health Services campus, and Hillsboro's downtown, it includes a 1,200-square-foot area especially for bicycle commuters, 15 state-of-the-art charging stations for electric vehicles, parking spaces for conventional automobiles, and 19,000 square feet of street-level commercial space. During the construction, sustainable building materials and design options with low carbon footprints were prioritized to minimize environmental impacts. More than 5,500 yards of concrete were used in the project and every mix contained slag cement, which has a significantly lower embodied energy and carbon content than portland cement. Almost 50 percent of the concrete placed contains at least 40 percent slag cement, qualifying it for a Leadership in Energy and Environmental Design (LEED ) innovation point. The average slag content was 19 percent of all cementitious materials used in the concrete, but cement with as much as 93 percent slag cement content was used for some mixes. write your comments about the article :: © 2011 Construction News :: home page |