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USA - Economical sustainable pavement

The Federal Highway Administration, an agency within the U.S. Department of Transportation that supports State and local governments in the design, construction, and maintenance of the nation’s highway system, has created a program aimed at improving road safety, reducing congestion, and improving methods for repairing roads and bridges. 

Date of the news: June 2017

California, which is well known for its traffic density, is a lead state for implementation of the program. In conjunction with the FHA, the California Department of Transportation (Caltrans) recently sponsored a trial of a two-lift concrete paving system on Interstate 210 in Sunland, north of Los Angeles, along Angeles National Forest and San Gabriel Mountains National Monument. National Ready Mixed Concrete Company (NRM) helped place concrete for the unreinforced short-slab pavement made up a 20-cm-thick bottom course and a 10-cm-thick top course. The use of these composite pavements reflects the current trend for many highway agencies to build economical, sustainable highways using recycled and locally available materials.


Due to recognition of its expertise, NRM was among the participants chosen for placing pavement with bottom lifts employing two separate mixes: one with reduced cement content and one with recycled concrete aggregate.