Construction materials Aggregate Road metal Aggregate Mineral filler Road metal Mineral filler Volcanic ash Aggregate Road metal Volcanic ash Structural stone Riprap Road meta! Aggregate Calcareous binder Calcareous binder Road metal Structural stone Riprap ' High percentage of mortar bed fragments in coorse fraction. Low compressive strength. Same chert nqted, presumably in coarse fraction. Limestone pebbles noted in coarse fraction. Some soft limestone pebbles. High percentage of wash. Overburden may be too thick for economic removal of any mare material from this operated pit; low compressive strength. High percentage of mortar bed fragments in coorse fraction. High percentages of quartzite fragments and limonite nodules In coarse fraction; compressive streng rather low. High percentage of mortar bed fragments in coarse fraction-, high percentage of wash. Fairly high percentages of mortar bed and chert fragments In coarse fraction. High percentage of mortar bed fragments In coarse fraction. Concealed beneath Sonborn formation. Lees than 5 percent limestone grovel in coarse fraction. Cementation factor may be excessive. Cementation factor may be excessive. Cementation factor may be excessive. Cementation factor may be excessive. Cementation factor may be excessive; overlain by soil and sand layers. Cementation factor may be excessive. Cementation factor may be excessive. High percentage of silt. Some grovel and sand. Cementation factor loirly high; concealed beneath Sonborn formation. 1 SHCK, State Highway Commission of Konso*. SHCK and USGS, sieve analysis and laboratory tests by State Highway Commission of Kansas; sample collection and description of material by U S. Geological Survey-* C, coarse fraction, retained on Na.4 sieve; F, fine fraction, passed through Na.4 sieve) Tr, trace.
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