Da Inglese a Italiano Tecnico/Meccanico Industria edilizia/Ingegneria civile

The construction of a short stretch of a state highway in northeast Arkansas reveals the potential of using stakeless, stringless construction techniques to complete an entire highway cross-section, from subgrade to base to paved surface. Almost as importantly, the project utilizes automated grade control technologies on some machines that are relatively new to them.
In the latter part of 2012, XXX Contractors, El Paso, Ark., began constructing a four-lane, six-mile stretch of highway in the state.. The contractor trimmed an average of four inches of topsoil from the subgrade, constructed a six-inch layer of stone base and a one-inch-thick asphalt bond-breaker installed to prevent overlay cracking, and covered the bond-breaker with a 10-inch layer of concrete pavement.