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Modern aggregate facilities must precisely control their product.
The facilities must flexibly allow wet or dry production circuits,
prevent contamination, comply with environmental laws, utilize
high-speed loading, and be easy to maintain.
Roberts & Schaefer Company offers "Full Service" process engineering,
design, construction and commissioning services to the aggregate
industry. Our long history of project experience assures our ability
to meet your specific project objectives and operating conditions.
Whether installing new "green-field" plants, modifying present
operations, or installing ancillary systems, each facility is
designed with an understanding of how best to maximize plant production
and net profit.
A segment of our experience is depicted in the following projects.
LOGAN QUARRY PLANT RENOVATION
 Granite
Rock Company
Aromas, California
Roberts & Schaefer provided engineering, procurement, and
construction management for the expansion of Granite Rocks' Logan
Quarry, consisting of dry screening, tertiary crushing, wet screening,
sand classification, reclaim, blending, rinse and loadout facilities.
In-depth project information
KAISER CEMENT CORPORATION
 Permanente
Aggregate
Cupertino, California
For the modernization of their existing sub-base and coarse
aggregate plant, Kaiser Cement selected Roberts & Schaefer to
provide engineering services and prepare a feasibility study.
In-depth project information
More Aggregate
Facility Projects
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