Catalina Pacific deploys eight plants, 200+ trucks for record 21K-yd. pour
- Published: Tuesday, 18 February 2014 17:16
- Written by Concrete News
Sources: Headwaters Inc., South Jordan, Utah; CalPortland Co., Glendora, Calif.; CP staff
Catalina Pacific Concrete delivered 2,120 loads of ready mixed over a 19-hour window, February 15-16, to the Wilshire Grand site in downtown Los Angeles. Executed without a single injury, the operation marked what project officials note is a new volume threshold, 21,200 yd., for a continuous foundation pour.
CalPortland’s flagship concrete business, Catalina Pacific mustered 208 mixer trucks and 235 drivers across eight plants, located four to 20 miles from the site. Concrete contractor Conco Cos. staged 13 of its pumps—from a total of 19 machines deployed on site—to place mixes for a 17.5- to 18-ft. thick mat as far as 100 feet below grade. The foundation mix is designed with a 25 percent fly ash binder and required to meet 6,000 psi compressive strength at 90 days. Headwaters Resources supplied Catalina Pacific 1,800 tons of fly ash from its Pomona, Calif., terminal.
With a finished thickness up to 20 feet, the foundation will support a Korean Air-developed $1 billion office and hotel rising 1,100 feet. Beyond the foundation phase, Catalina Pacific and Conco will supply, place and finish concrete for the structural steel tower’s core and floor decks. When completed in 2016, Wilshire Grand will be the tallest building west of the Mississippi River. Catalina Pacific and Conco are part of a design and construction team headed by AC Martin and Turner Construction Co., both of Los Angeles.