A 1.8-million-dollar paving contract for the renovation of Fairplex, the Los Angeles County Fair and Exposition Complex in Ponoma, California, involved the first use of whitetopping in Southern California. The contract, awarded to Sullivan Concrete Textures, Costa Mesa, California, required more than 140,000 square feet of concrete to be placed over the existing asphalt flooring of four exhibit buildings. It also required whitetopping of outdoor parking and vehicle-access areas and 500,000 square feet of exterior architectural concrete work. Exterior concrete paving work at the entrance to Fairplex and its exhibit buildings was pattern stamped in a slate design and colored oyster white and venetian pink using dry-shake color hardeners.
To meet a tight construction schedule of 40 days, Sullivan had four crews each working an average of 10 hours per day. Workers placed more than 4,000 tons of sand to level the existing asphalt flooring in the four exhibit buildings. More than 12,000 cubic yards of concrete in five different mix designs were needed for the project. To meet these demands, the ready mix supplier devoted an entire plant to the project, batching more than 100 to 125 yards per hour. Twelve dispatch trucks hauled more than 65 loads of concrete a day from the batch plant to the project site 12 miles away.