LASN is a photographically oriented, professional journal featuring topics of concern and state-of-the-art projects designed or influenced by registered Landscape Architects.
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22 Landscape Architect and Specifier News h a rd s c a p e s n e w s The University of California Pavement Research Center at UC Davis will load 2,600 square feet of permeable interlocking concrete pavement (PICP) test track with a heavy vehicle simulator to develop better design tools for PICP producers. The test track is the first of its kind in the western hemisphere. The test results will provide information for the modeling and development of base thickness charts over a variety of soils and wheel load conditions, and the large-scale assessment should provide PICP performance assurances to civil engineers, especially in saturated soils. Load testing is expected to take about four months. Paver producers from California including Angelus Block, Orco Block, Oldcastle, Basalite, RCP Block, Olsen Pavingstone, Air Vol Block, Pavestone, Pacific Interlock, Calstone, and Acker Stone are funding the project, with additional support from the California Nevada Cement Association and the ICPI Foundation for Education and Research. EPA Approves Use of Recycled Coal Ash as Cement Substitute The BIA, a nationally recognized organization that represents suppliers and distributors of clay brick, is accepting submissions for the 2014 Brick in Architecture Awards. Architectural and design firms from around the country can enter their best work to be judged by a jury of their peers through April 30, 2014. Any work of architecture completed since January 1, 2009, in which clay brick products comprise the predominant exterior building or paving material (more than 50 percent), is eligible. An entrant may submit more than one project for consideration, and previously submitted projects can be entered again, as long as they were completed after 2009. A firm may submit multiple entries if desired, either within the same category or among multiple categories. Last year's Brick in Architecture Awards spanned 21 states and included green building practices that earned Leadership in Energy and Environmental Design (LEED) ratings. For more information, contact Tricia Mauer at tmauer@bia.org . To submit your project, visit gobrick.com . The Brick Industry Association has opened a submittal call for the annual Brick in Architecture Awards. A new examination of coal combustion residuals has led the EPA to approve the use of recycled coal ash as an acceptable alternative for Portland cement in concrete. The Environmental Protection Agency (EPA) released an evaluation of the two largest beneficial uses of encapsulated coal combustion residuals (CCR or coal ash); use in concrete as a substitute for Portland cement and the use of flue gas desulfurization gypsum as a substitute for mined gypsum in wallboard. The evaluation concluded that CCR use is appropriate in concrete and wallboard applications, as it is comparable to virgin materials or below the agency's health and environmental benchmarks. "The protective reuse of coal ash advances sustainability by saving valuable resources, reducing costs, and lessening environmental impacts, including reducing greenhouse gas emissions," said Mathy Stanislaus, assistant administrator for EPA's office of Solid Waste and Emergency Response. Coal ash is formed when coal is burned in boilers that generate steam for power generation and industrial applications. Slightly more than half of coal ash is disposed of in dry landfills and surface impoundments. The remainder of coal ash is used beneficially, as well as in mining applications. Heavy Vehicle Simulator Puts Permeable Concrete to the Test The Interlocking Concrete Pavement Institute (ICPI) and nearly a dozen paver manufacturers in California are sponsoring a heavy vehicle simulator test on a permeable interlocking concrete pavement (PICP) track at UC Davis. The test will simulate years of truck traffic, demonstrating the viability of permeable concrete installations for long-term civil engineering projects. Brick in Architecture Awards Looking for Projects 22-23.indd 22 2/27/14 9:02 AM