Tech Specs Update
The Interlocking Concrete Pavement Institute (ICPI) released three new Tech Specs and updated another. The Tech Spec titles and content summary are provided below. All publications can be downloaded at www.icpi.org. ICPI has published its Tech Spec series of technical bulletins since 1995.
Tech Spec 16: Achieving LEED Credits with Segmental Concrete Pavement consists of a complete rewrite covering how segmental concrete paving products can support earning credits under the latest version (v4) of the U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED) sustainable rating system for buildings. The 20-page document presents excerpts from the LEED BD+C Reference Guide and comments on the role segmental concrete pavements can play in support of earning credits.
Tech Spec 19: Design, Construction and Maintenance of Interlocking Concrete Pavement Crosswalks provides guidance on selecting and detailing assemblies based on anticipated traffic loads. The assembly choices are based on full-scale load testing and evaluation by the University of Waterloo, Ontario, Centre for Pavement and Transportation Technology. The eight-page bulletin covers assemblies using aggregate, stabilized and concrete bases using sand and bitumen-sand setting beds for the concrete pavers. Specify interlocking concrete pavement crosswalks, bases and edge restraints with more reliable performance.
Tech Spec 20: Construction of Bituminous-Sand Set Interlocking Concrete Pavement provides a well-illustrated and thorough description on how to construct this durable system for sidewalks, crosswalks, intersections and streets. The eight-page bulletin outlines the tools, materials and steps for bitumen-set concrete pavers on a concrete base. This application is essential in high traffic, urban areas subject to buses and trucks. The text is aimed at contractors while presenting a procedure of high interest to civil engineers, landscape architects and architects. The bulletin accompanies ICPI’s guide specifications and detail drawing on bitumen-set applications.
Tech Spec 21: Capping and Compressive Strength Testing Procedures for Concrete Pavers informs paver manufacturers, paver testing laboratories and specifiers on recent sweeping changes to the compressive strength testing in ASTM C140: Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units. The eight-page bulletin provides step-by-step cutting and refined capping procedures for crushing paver specimens using flow charts and photos to help testing labs produce consistent compressive strength test results. The bottom line on the changes to ASTM C140 is it now adjusts compressive strength results from concrete pavers with different thicknesses, thereby eliminating the confusion resulting from lower strengths from thicker pavers.