Aggregate Performance on Forest Roads in the Pacific Northwest

Yıl 2018, Cilt: 4 Sayı: 2, 43 - 49, 28.12.2018

Scott Hanna Kevin Boston

https://doi.org/10.33904/ejfe.458287

Cited By: 2

Öz

Eleven
aggregate quarries from the Pacific Northwest, USA were sampled to measure the
variability in rock properties. Additionally, road managers were asked to
classify the aggregate source as good or marginal for forest roads with
year-round timber hauling as the primary use. 
Seven of the eleven quarries were classified as good. A series of
materials property tests were performed on the aggregate sampled from each
quarry. The test included gradation, LA Abrasion, Micro-Deval, and sand
equivalency tests. Three replicates were performed for the LA Abrasion,
Micro-Deval, and sand equivalency tests. The results show that only two of the
seven rated as good samples met the thresholds established from the literature
review. None of the marginally rated aggregates met the thresholds for the
material property tests.  The results
show that the road managers expectation of rock quality is inconsistent when
compared with the results from tests.  It
suggests that in order to understand aggregate performance better, testing
before placement is a necessity.

Anahtar Kelimeler

Aquatic and terrestrial ecosystems, Forestry activities, Watershed management, Wood production

Kaynakça

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