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OTR has an extensive inventory of boulders with sizes ranging from less than 12″ to over 3.’ Having our own boulder supply means our customers can enjoy savings by buying direct from the quarry as opposed to buying from a landscape supplier. Read more »
OTR’s fine aggregates, such as Slurry Seal/Micro-Surface, provides friction properties to the finished surface and increases set time to reduce the duration of road closures. Slurry Seal/Micro-Surface Products: - DFC Fines - Unwashed manufactured sand Read more »
Due to its chemical properties, OTR’s products can be used as an ingredient to in the production of rockwool insulation. Mineral Wool/Rockwool Products: 3″ x 4″ 4″ x 6″ Read more »
OTR’s ready mix concrete is used in temperature sensitive and high abrasion resistant industrial applications. It has a freeze thaw dilation of -0.001 per Michigan Test Method 115. Read more »
OTR’s railroad ballast exceeds industry strength and durability requirements. Our railroad ballast forms the track bed upon which railroad ties are placed. Properly placed and maintained ballast holds track in place and facilitates drainage. OTR meets all North American railway applications and... Read more »
Trap Rock/Diabase is an aggregate that provide superior friction properties. It assists in building Voids in Mineral Aggregate (VMA) and allows for increased binder replacement (FRAP/RAP/RAS) content. Ontario (DSM Inventory # B22-072) - HL-1 (5/8″ clear) - DFC Fines - Unwashed Manufactured... Read more »
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