DuraTough is a semiflexible surfacing system for pavement areas that are subject to heavy and/or slow-moving traffic, or where a durable, hard-wearing, impermeable, and fuel resistant surface is required. DuraTough combines the flexibility of asphalt pavement, with the strength and imperviousness of concrete pavement, in a two-part semi-rigid pavement. It is durable and long lasting. DuraTough is a grouted composite pavement. It is a cost-effective and fast curing alternative to concrete pavement. DuraTough can be opened to pedestrians within 3 hours and accept vehicular traffic within 24 hours. The strength of DuraTough stems from the base of gap-graded asphalt whose voids are filled with a cementitious grout. Once the grout has cured it has strength similar to that of concrete, with more flexibility; which reduces cracking and jointing requirements. The impervious surface with the cementitious grout prevents volatiles from penetrating the asphalt structure and compromising the pavement’s integrity