During the shut down of Oakland International Runway 11-29 for a complete asphalt overlay, CEL mobilized 25 field inspectors and materials testing technicians. Along with the field personnel were 20 laboratory technicians. Contractors and laboratory personnel worked around the clock to complete the 104,000 tons of asphalt and placement in five days. CEL performed complete laboratory testing in accordance with FAA Specifications. CEL also had field personnel performing batch plant, placement inspection and compaction testing.