REP48684

• Permit No: C1981047
• IBM Index Class Name: Report
• Doc Date: 12/13/1984
• Doc Name: LABORATORY TESTING SELECT MATERIAL
• From: ROCKY MOUNTAIN GEOTECHNICAL INC
• To: BLUE RIBBON COAL CO
• Permit Index Doc Type: STABILITY REPORT
• Media Type: D
• Archive: No

WESTERN 551 25'h Road, Suite B-101
COLORADO Grand function. CO 81505
TESTING, [phone] LABORATORY REPORT
INC.
• PHYSICAL PRpPERTlES t.~r AGGREGATES
BLUE RIBBON COAL COMPANY fob No. 443086
P. O. Box 939
Paonia, Colorado 81428 Lab.nnvoice No. 99.256
Dale of Report 11_28-84
Reviewed By JF __
Protect Bench Below Mine Portal
Location_~Dw1L'r (`nlcSraAn z Sample) By _R._Klrk LVOnS p,rtc• 11-15-64
Type of Aggregate Washed 3/4" ___ _Submiucd By _R_..._Klrk LVORS Dale 11-15-84.
Source of Aggregate Blue Ribbon ,Coal Mine Authorized By Client Date 11-15-84
C
•
Sieve Analysis. ASiM Ctlb
5m.e 5i.e A~rauWAr 4M.rh, alien

4"
3"
2' ,
1 '/~,.
1 '/."
1 100 100
'/' 10 0
'/'~~ 73
'/~~~ 40-80
~~ ,
No. a 4 10-3
B
10 2 0-10
16
20 1.7 0-5
`~ 1.4 0-5
50
100 1 . 1
200 1. 0

finer than 200
ASTM CI I7~
Copies to:
trsl slendardv an• ASIM unlrn °Ihrnxise nulyd.
Ira Ynull Spn iM1Un°n rea SlU
Fineness Modulus C125-
Dry Rodded Unit Weight, pcf C29-
Lightweight Pieces, % C123-
Clay Lumps and Friable Particles C142-
Organic Impurities C40-
C2419-

Resistance Wear, rev. C131-
to
Wear, 500 rev.
Grading
Abrasion % Wear, rev. C535-
%bVear, 1000 rev. Grading
Scratch Hardness, % by. w~~xhi Ic°°nl I I C235-
Fractured Faces, % by: wr~gmlcll,~m
Liquid Limit Plasticity Index I I D424-
Cleanness Value Calif. 227-
Sand Equivalent Value

Moi5luu• Max. Dry Densily, pcf ^ D698-

Density
Optimum Moisture, % ^ D1557~
^ AASHTO T99~
Rclation5
Melhod O AASHTO T INO~
Absorption,
Specific
Gravity gulk (Dry) ^ C127-

Bulk (SSD) ^ C 128-
Apparent
TESTING OF MATERIAL FOR lJNDERDRAINS