APAI Member Antigo Construction, Inc. received the 2006 Global Road Achievement Award in the category of Construction Methodology for its work on the Kandahar-Heart (K-H) Highway in Afghanistan.
The 442 km K-H Highway was built in the mid 1960’s using pre-cast concrete panels. By 2003, this highway had deteriorated badly due to extensive cracking of panels, displacement of joints and uplift from flooding stemming from years of neglect and conflict. Given the remote, dangerous location and harsh environment, the K-H Highway paving is considered the most significant, most difficult and the largest continuous concrete rubblization, asphalt overlay ever constructed.
“The pavement quality of this 265 mile K-H Highway project and the relatively short two-year construction schedule equals that of the most successful rubblization projects we have been involved with,” said George Shinners, President, Antigo Construction.
The choice of PCC pavement rubblization with an asphalt overlay was chosen from several alternative rehabilitation methods. The ability to recycle the existing highly deteriorated PCC pavement into a strong, flexible base layer to support the asphalt pavement resulted in reduced material and transportation costs as well as construction time this method was well-suited to the unusually heavy traffic loads and extreme temperature variations of this remote Afghanistan location.
Rubblization realized significant time and cost savings. The direct cost savings of rubblization was $0.26/m2 . For the entire highway, this amounted to a direct cost savings of $775,210.
The Global Road Achievement Awards are given by the International Road Federation (IRF). These awards which were established in 2000 are an IRF project that further promotes the positive impact that the road development industry makes worldwide. Global Road Achievement Awards seek to draw attention to leading projects and organizations, providing a road map for others to follow in continuously improving and advancing road development worldwide. The judges for these awards are comprised of an international group of industry experts, engineers and professors who were chosen to review the submissions and decide on a winner for the various categories.
Article taken in-part from the International Road Federation “2006 Global Road Achievement Awards Winning Projects,” announcement brochure.