Concrete Products

AUG 2014

Concrete Products covers the issues that attract producers of ready mixed and manufactured concrete focusing on equipment and material technology, market development and management topics.

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32 • August 2014 Continuous improvement of processes and people is long-standing in the ready mixed concrete, aggregate, recycling and road-building businesses of Watsonville, Calif.-based Graniterock. The practice also applies to property, as demonstrated at the Redwood City Building Materials site, where the producer is revisiting a) returned concrete and truck washout handling methods sidelined since the late 1990s and, b) space utilization on a limited footprint. Graniterock is among ready mixed producers that installed re- claimers for aggregate and slurry recycling, but abandoned them due to equipment limitations and cost-beneft factors. Improved reclaim- ing and water management equipment, coupled with the scarcity of land from San Francisco to Silicon Valley, have compelled the pro- ducer's Concrete Division to manage its own process-waste stream. "As a vertically integrated operator, we have aggregate and slur- ry disposal options," says Concrete Division Manager Mike McGrath. "We feel we need to sustain materials internally. Sister recycling facilities are available to help, but don't like to deal with a ready mixed plant's waste. They are land-locked and want to maximize yard space available for outside customers." Northern California's technology industry-fueled construction market has enabled Gran- iterock to invest in plant and feet equipment, he adds, marking "a big change from four to six years ago." SETTLING POND SUNSET The 15-acre Redwood City Building Materials operation is midpoint between San Francisco and Graniterock's San Jose Concrete plant. The sites reach much of Silicon Valley, one of the country's hottest building markets thanks to major jobs under way for Apple, Facebook, Google and peers. FEATURE BY DON MARSH Reclaiming Revisited Improving market conditions, land-locked sister properties, plus safety and envi- ronmental factors have spurred an upgrade of Graniterock's Redwood City Building Materials property, one of the company's two integrated ready mixed, asphalt and recycling plants serving Silicon Valley. The Redwood City site sources aggregate by rail from the Graniterock Aromas quarry, about 75 miles south. The new reclaimer station lies between wet and dry plants along a 35-ft. wide drive-through corridor. In tandem with the reclaimer equipment, Graniterock has added 30 mixer trucks in the past 24 months, spread across a Concrete Division feet with fve sites. The mixer truck investment is based on replacement vehicle needs and the feasibility of bringing older (> 10 years) mixers' exhaust systems into Cali- fornia Air Resources Board compliance. PHOTOS: DHE Inc.

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