Ballast

Bolinder Resources has supplied hundreds of thousands of tons of Railroad Ballast since 2009. We have supplied ballast on projects such as the Mid-Jordan and Draper TRAX lines as well as maintenance on all other TRAX lines in the Salt Lake Valley.

Our massive quartzite quarry, located on Stansbury Island, provides ideal rock for Railroad Ballast. Situated a short distance from Salt Lake and 5 miles off of I-80 makes hauling feasible all over the state.

All our ballast is 100% quarried rock and has consistently met Union Pacific, UTA and AREMA specifications where other local materials have fallen short. Please take some time to look at some of our Ballast tests, and learn about railroad ballast, by clicking the button “Ballast Tests” below.

 

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READING THE BALLAST TESTS

•SODIUM SOUNDNESS TEST
•SPECIFIC GRAVITY
•ABSORPTION
•LA ABRASION (NOT INCLUDED)
•CLAY LUMPS AND FRIABLE PARTICLES
•DRY RODDED WEIGHT

BALLAST SODIUM SOUNDNESS TEST

•The soundness test determines an aggregate’s resistance to disintegration by weathering and, in particular, freeze-thaw cycles. Aggregates that are durable (resistant to weathering) are less likely to degrade in the field and cause premature distress and potentially, failure.

The soundness test repeatedly submerges an aggregate sample in a sodium sulfate or magnesium sulfate solution. This process causes salt crystals to form in the aggregate’s water permeable pores. The formation of these crystals creates internal forces that apply pressure on aggregate pores and tend to break the aggregate. After a specified number of submerging and drying repetitions, the aggregate is sieved to determine the percent loss of material.

The formation of salt crystals is supposed to mimic the formation of ice crystals in the field and could therefore be used as a surrogate to predict an aggregate’s freeze-thaw performance.

SPECIFIC GRAVITY

The formation of salt crystals is supposed to mimic the formation of ice crystals in the field and could therefore be used as a surrogate to predict an aggregate’s freeze-thaw performance.

ABSORPTION

•The absorption test is a measure of an aggregates tendency to hold water in it’s capillary pores.
•The sample is dried and then submersed in water for 24 hours. The sample is then removed and padded dry to remove all water from the surface while the pores remain filled. The sample is then weighed and measured as a percentage of the dried weight.

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