HomeMy WebLinkAboutSection 02240 Soil Stabilization
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SECTION 02240 SOIL STABILIZATION
PART 1 - GENERAL
1.01 SCOPE:
A. Summary of Work: The CONTRACTOR shall furnish all labor, equipment, and
materials for stabilization of the soil to provide a firm and unyielding subgrade for the
Work as described in this section.
1. SECTION 02200 “Earthwork”
1.02 APPLICABLE PUBLICATIONS: The following standard specifications shall apply to the
work of this Section as indicated:
A. Florida Department of Transportation
1. Standard Specifications for Road and Bridge Construction, latest edition,
(FDOT).
B. American Society of Testing Materials, (ASTM).
1. ASTM D1557-00, Standard Test Methods for Laboratory Compaction
Characteristics of Soil Using the Modified Effort (56,000 ft-lb/ft3 (2,700 kN-
m/m3)).
2. ASTM D 2922-01, Standard Test Methods for Density of Soil and Soil-
Aggregate in Place by the Nuclear Methods (Shallow Depth).
C. Soils Report/Boring log, See Appendix.
1.03 DEFINITIONS: (Not Used)
1.04 SUBMITTALS: (Not Used)
1.05 QUALIFICATIONS: (Not Used)
1.06 RESPONSIBILITIES: (Not Used)
1.07 CERTIFICATIONS AND TESTING: The CONTRACTOR shall provide to the ENGINEER
three copies of certified test results for the tests required to be performed by the
CONTRACTOR.
1.08 INSPECTION COORDINATION: The CONTRACTOR shall provide access to the work for
the ENGINEER as requested for inspection. The Contractor shall provide 48 hours notice
of its intention to begin new WORK activities. The ENGINEER may perform field density
tests in accordance with ASTM Standards, for each type of material used in backfilling.
Failure to meet the specified density will require the CONTRACTOR to recompact and
retest, at its own expense, those areas directed by the ENGINEER
A. Soils Report/Boring log, See Appendix/Drawings.
1.09 WARRANTY: (Not Used)
PART 2 - PRODUCTS
2.01 PRODUCT REQUIREMENTS:
A. General Requirements: The CONTRACTOR shall provide the required stabilization
material which shall be either commercial limerock or crushed shellrock in
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conformance with FDOT Standard Specifications for Road and Bridge Construction
Section 914-3, Type B Stabilizing.
PART 3 - EXECUTION
3.01 PREPARATION: The CONTRACTOR shall prior to the beginning of the stabilizing
operations, grade the area to be stabilized to an elevation such that upon completion of
the stabilizing operations the stabilized subgrade will conform to the lines, grades and
cross sections shown on the Drawings.
3.02 APPLICATION OF STABILIZING MATERIAL: The CONTRACTOR shall spread the
stabilizing material uniformly over the area to be stabilized. The CONTRACTOR shall then
mix the material with rotary tillers, or other equipment meeting the approval of the
ENGINEER. The area to be stabilized shall be thoroughly mixed throughout the entire
depth and width of the stabilizing area.
3.03 COMPACTION: After mixing operations are completed, the CONTRACTOR shall compact
the area to the minimum density as required by FDOT Section 160. The subgrade shall
be firm and unyielding; to the extent that it will support construction equipment. The
CONTRACTOR shall remove all soft and yielding material, and any other portions of the
subgrade, which will not compact readily, and replace with suitable material and the whole
subgrade brought to line and grade.
3.04 FINISH GRADING: The CONTRACTOR shall shape the completed stabilized subgrade
shall to conform to the finished lines, grades, and cross-sections indicated on the
Drawings.
3.05 MAINTENANCE: After the subgrade has been completed as specified, the
CONTRACTOR shall maintain it free from, ruts, depressions and any damage resulting
from the hauling or handling of materials, equipment, etc. It shall be the CONTRACTOR's
responsibility to maintain the required density until the subsequent base is in place.
END OF SECTION