Asg Sand Gravel Mixture (Lake-River Type) - A Building Material That Is A Mixture Of Sand And Gravel. The Grain Composition Of The Sand-Gravel Mixture Is Characterized By The Content Of Sand Fractions With Sizes Less Than 0.16 To 0.315 Mm, From 0.315 To 0.63 Mm, From 0.63 To 1.25 Mm, From 1.25 To 2.5 Mm And From 2.5 To 5.0 Mm; Gravel Fractions Ranging In Size From 5 To 40 Mm; Fractions Of Boulders Ranging In Size From 40 To 80 Mm. In A Natural Sand-Gravel Mixture, The Content Of Gravel Grains Should Be No Less Than 10% And No More Than 90% By Weight. Indicators Of The Properties Of The Gravel Component Include: - Grain Composition (At The Consumer’S Request); - Gravel Strength; - Content Of Grains Of Weak Rocks; - Frost Resistance; - Content Of Dust And Clay Particles; - Clay Content In Lumps; - Mineralogical And Petrographic Composition. St Rk 1549-2006 Sand-Gravel Mixtures For Construction Work.
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