New Ulm Quartzite Quarries

3/4" Clean
(3/4" x #4)

[Quality] [Last Four Tests]


NUMBER OF TESTS PERFORMED: 15
DATE OF LAST TEST: 06/23/2008

Gradation
SIEVES (mm) MNDot Spec Limits for
CA-5
MNDot Spec
Median
for CA-5
NUQQ Running Avg. Sample Standards Deviation about Running Avg. NUQQ Production Wking Range % of 4 Consecutive tests inside of Wking Range
1.0"
(25.0)
100% 100% 100.0% 0.0% 100% 100.0%
0.75"
(19.0)
85% - 100% 92.5% 100.0% 0.0% 100% 100.0%
0.5"
(12.5)
- - 70.5% - - -
0.375"
(9.5)
30% - 60% 45.0% 43.9% 8.4% 36% - 52% 100.0%
#4
(4.75)
0% - 10% 5.0% 3.9% 1.4% 3% - 5% 100.0%
3/4" Clean will meet A.S.T.M. #67 specification for gradation.

Values indicate the percentage by weight passing square opening sieves.

DISCLAIMER: The gradation and mechanical test results included in this report are for information only. New Ulm Quartzite Quarries, Inc. makes no representation or warranties either expressed or implied with respect to the use of this information. New Ulm Quartzite Quarries, Inc. assumes no liability to anyone for special, collateral, exemplary, indirect, incidental, consequential, or any other kind of damage resulting from the use or application of this information. Customers and other users of our products should exercise their independent judgment when using these products for the purposes they intend.

 

General Quality
Quality Parameters NUQQ Running Avg. MNDot Spec Limits Note
Non Class 'A' Material by Weight: 3.2% 10.0% Max.* Sandstone
L.A.R. Abrasion Loss (A.S.T.M. C131-89): 27.6% 40% Max. Toughness
Magnesium Sulfate Loss
(A.S.T.M. C88-90 - 5 Cycles):
<10.0% 15% Max. Soundness
Flat & Elongate Particles, (A.S.T.M. D-4791): 0.0% 10.0% Max. 3:1 Ratio
Specific Gravity, (A.S.T.M. C127-88): 2.63/2.66/2.64 N/A Bulk/Apparent/SSD
Absorption in Bulk Sample, (A.S.T.M. C126): <0.7% N/A Porosity
Unit Weight, PCF, (A.S.T.M. C29): 88.4/82.3 N/A Dry Rodded/Loose
Voids, %, (A.S.T.M. C29): 46.0%/49.8% N/A Dry Rodded/Loose
Freeze thaw durability
(A.S.T.M. 666 Meth. A, 306 Cycles):
88.5%/0.006% N/A RDME/Length Change
A.S.R. Expansion,
(A.S.T.M. C-1293 @ 365 Days W/O Mitigators):
0.123% - A.S.R. Reactivity
A.S.R. Expansion,
(A.S.T.M. C-1293 @ 365 Days W/ 25% "Coal Creek" FA Replacement):
0.027% 0.04% Max. A.S.R. Reactivity
A.S.R. Expansion,
(A.S.T.M. C-1260 @ 14 Days W/O Mitigators):
0.220% - A.S.R. Reactivity

200 Mesh, (75 Micron),
Material, (A.S.T.M. C117-90):

<0.5% 0.8% Max. Surface Dust

* Maximum non 'Class A' material for M.N.D.O.T. 3137 Class C aggregate specification: 10.0%.

Quartzite aggregates contain no shale, iron oxide, slate, unsound chert or clay balls.

3/4" Clean meets all M.N.D.O.T. 3137 'Class C' quality specifications for concrete aggregate and, when applicable, meets MNDOT QA/QC bonus criteria for <15% carbonate in the 'Class C'.

 

Sieve Test Values for the Most Recent Four Tests

SIEVES
(mm)
MNDot Spec Limits NUQQ Production Wking Range NUQQ Moving AVG. Last Four Tests
08/27/07 08/31/07 09/24/07 10/01/07
1.0"
(25.0)
100% 100% 100.0% 100.0% 100.0% 100.0% 100.0%
0.75"
(19.0)
85%-100% 100% 99.8% 99.8% 99.9% 99.7% 99.8%
0.5"
(12.5)
- - 67.3% 70.0% 68.0% 64.0% 67.0%
0.375"
(9.5)
30%-60% 40%-60% 40.0% 42.0% 42.0% 39.0% 37.0%
#4
(4.75)
0%-10% 3%-8% 3.8% 3.1% 4.2% 4.6% 3.2%

Values indicate the percent by weight passing square opening sieves.