Why does the sand product used by MDT include some larger debris more like gravel?
Sand and sand/salt mixtures are abrasives used to increase traction on slippery and icy roadways. Sand particles must be of significant size in order to provide effective amounts of traction. Additionally, finely ground sand would disperse into the air and contribute to pollution levels without providing sufficient coverage for traction. Current specification requires all crushed material to fit through a 5/16″ opening. For more information on MDT’s winter maintenance program contact MDT’s Maintenance Administrator: “; var kdefn = “”; var tvgft = “Email: “; var chgyo = “cc=”; var pecsd = “mailto:”; var tkjgt = “?”; var xgyrx = “Subject=Winter maintenance”; var nfhjd = “&”; var cqtxu = “;”; var bxsyt = “Jon Swartz”; document.write(kdefn+ertvb+pecsd+vsxdr0+ertqs+ssgdx0+tkjgt+xgyrx+ertvb+vdfty+bxsyt+sjbwr); //–> 406.444.6157.
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