Development of a Roller Compacted Concrete Pavement Reinforced with Continuous Steel Bars

A roller compacted concrete pavement (RCCP) reinforced with continuous steel bars was recently developed at the New Tokyo International Airport. The construction is fast and the effectiveness of load transfer at cracked sections of the continuously reinforced concrete pavement is high. This RCCP was built in two layers. Steel bars were arranged in grooves on the surface of the lower layer with retarder and covered with non-shrinking mortar to ensure the adherence to the upper layer. Strain distribution in the reinforcing bars and the concrete, crack spacing, crack width of the upper layer, etc. were monitored during three months after its construction on 16 November 1991. This paper reports on the results of the studies conducted on the behaviour of this recently constructed pavement.