producer of haydite expanded shale lightweight aggregate, used in the production of lightweight concrete masonry, structural concrete and fill aggregate. |
Supplies aggregates and industrial minerals for landscaping, decorative surface dressing, pebble dashing, and flooring. |
Manufacturers of Haydite expanded shale, lightweight aggregates for structural concrete and masonry applications, horticultural and bonsai soil amendments, and landscaping ground covers. |
Holding company whose subsidiary operating companies supply concrete and asphalt to the Northwest. |
Diversified heavy civil and highway contractor and construction materials producer. |
Supplier of specialty aggregates, sands, and mineral fillers to architectural and industrial customers. |
Producer of crushed aggregates for concrete, bituminous, road base, railroad ballast, and industrial grits. |
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