The owner or operator shall implement the following material
testing procedures for testing Poz-O-Tec liners and caps and Poz-O-Tec
Monofills:
a) Creation and Sampling of
Test Pad
1) The owner or
operator shall
construct a test pad in accordance with 35 Ill. Adm. Code
811.507(a),
unless such construction is waived by the Agency pursuant to subsection (b) of
that Section;
2) The test pad shall
be allowed to cure for 56 days at 73° Fahrenheit (or equivalent
cure);
3) After curing, fifty
samples shall be taken using a 4 inch diameter coring bit; and
4) The specimens shall be trimmed to proctor
cylinder size utilizing an abrasive blade masonry saw and tested for unconfined
compressive strength and coefficient of permeability as described in subsection
C below. Of the specimens taken from the pad, 20 shall be analyzed for their
coefficient of permeability and 30 shall be analyzed for their unconfined
compressive strength.
b)
Collection of Production Samples
The owner or operator shall collect samples from the production
of Poz-O-Tec in the following manner:
1) Utilizing a large scoop, five gallon
buckets of freshly produced material shall be collected at uniform intervals
during construction of the test pad and shipped to a laboratory for
analysis.
2) Five proctor cylinder
specimens shall be prepared from each bucket of freshly produced material.
Three of these five cylinders shall be tested for unconfined compressive
strength and the other two shall be tested for permeability.
3) Additional uncured samples shall be taken
as necessary for preparation and testing to determine moisture content, lime
content, the ratio of fly ash to sludge and in-place density. Testing for these
parameters shall be conducted in accordance with standard test
methods.
c) Strength and
Permeability Testing
1) Uncured samples shall
be taken to a laboratory, placed into proctor cylinders, compacted to simulate
field conditions, cured in sealed containers for 56 days at 73° (or
equivalent cure) and tested for coefficient of permeability and unconfined
strength using the following test methods, which are incorporated by reference
in 35 Ill. Adm. Code
810.104:
A) U.S. Army Corps of Engineers Engineering
Manual 1110-2-1906 Appendix VII, Falling-Heal Permeability Test with
Permeameter Cylinder.
B) ASTM
Method D5102; Standard Method for Unconfined Compressive Strength of Cohesive
Soils.
2) Field samples
shall be tested using the same methods as specified in subsection (c)(1)
above.
d) Data
Correlation
Laboratory data and field data shall be compared to determine
any statistically significant differences using standard statistical
correlation methodologies.
e) Subsequent Testing
Upon completion of field verification, as described above in
(c)(2), the owner or operator of the site shall conduct quality control/quality
assurance testing by taking monthly samples of freshly produced Poz-O-Tec
materials and sending those samples to a laboratory where they shall be formed
into proctor cylinder specimens for testing. Two of those samples shall be
tested for their coefficient of permeability, three for unconfined compressive
strength, and one each for the parameters set forth in subsection (b)(3) above.
Laboratory testing for permeability and strength must be conducted in
accordance with the test methods referenced in subsection (c). Test results
must demonstrate a coefficient of permeability of less than or equal to 1 x
10-7 cm/sec using a geometric average of the
permeability testing results and an unconfined compressive strength of greater
than or equal to 150 psi using an arithmetic average of the strength testing
results.
