2012-12-27_REPORT - M1980244 ‎(13)‎

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 12/27/2012
• Doc Name: QA Mon. & Test Results, ‎(PSES)‎- Append. E, Specs.
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

Section 02200
Earthworks
B. Structural Fill
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8. CONTRACTOR shall apply water required for moisture conditioning on the fill or in the
borrow areas.
CONTRACTOR shall maintain fill materials within the moisture content range required to
permit proper compaction to the specified density with the equipment being used. The
moisture content of the fill materials, prior to and during compaction, shall be uniform
throughout each layer of the material.
Prior to mixing of wet and dry material on the fill to obtain the proper moisture content,
approval shall be obtained from CERTIFYING ENGINEER. Mixed material shall have a
uniform distribution of the moisture content prior to placement on the subsequent lift.
When materials spread on the fill are too dry for proper compaction, CONTRACTOR
shall spray water on each layer of the fill and shall work the moisture into the fill by
harrowing or other approved means, until a uniform distribution of moisture is obtained.
Material that is too wet for proper compaction, as determined by CERTIFYING
ENGINEER, shall be removed from the fill and/or spread out and permitted to dry, assisted
by disking and harrowing or mixing in dry material when permitted by CERTIFYING
ENGINEER, if necessary, until the moisture content is reduced to an amount suitable for
obtaining the specified degree of compaction, at no cost to CC &V.
9. After each layer of fill material has been placed, spread, and moisture- conditioned, the layer
shall be compacted by passing compaction equipment over the entire surface of the layer a
sufficient number of times to obtain the required density, as specified herein.
Compaction shall be accomplished with equipment and by methods approved by
CERTIFYING ENGINEER. If such equipment or methods are found unsatisfactory for
the intended use, CONTRACTOR shall replace the unsatisfactory equipment with other
types or adjust methods until proper compaction is achieved. Prior to placement of a
subsequent lift, the previous lift shall be thoroughly scarified to a nominal depth of 2- inches
to provide good bonding between lifts. Scarification shall be accomplished by disking,
raking with a grader, or an alternative method approved by CERTIFYING ENGINEER.
10. The CQA Monitor will measure the ambient air temperature on an hourly basis. If the
ambient air temperature is less than thirty-two degrees Fahrenheit for more than one hour
(1) over the preceding twenty-four (24) hours, the CQA Monitor will measure the
temperature of the fill to determine if the fill is frozen. "Frozen" is defined as a mean
temperature of thirty-two degrees Fahrenheit (32 °F) or less. The CQA Monitor will
measure the temperature at a depth of three (3) inches and six (6) inches, recording the
lower of the two. Six (6) measurements will be taken per acre, and if the average is below
thirty-two degrees Fahrenheit (32 °F), the fill will be considered frozen. If the fill is
determined to be frozen the CONTRACTOR may either remove and replace the frozen fill
or wait until subsequent temperature monitoring indicates the fill is unfrozen, at no cost to
CC &V.
11. Overburden slopes shall be compacted using a method specification and graded to meet the
grades and dimensions shown on the DRAWINGS. The Bedding Fill subgrade surface will
be prepared as identified in Section 2200 of the SPECIFICATIONS.
1. Areas to receive Structural Fill will include, but are not limited to, slope reductions, and
miscellaneous site grading.
Page 7 of 14
June 19, 2012
Revision 1