MD ANDERSON Project No. XX-XXXX
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A/E Project No.
MD ANDERSON PROJECT NAME
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SECTION 33 46 00 – FOUNDATION DRAINAGE SYSTEM
PART 1 - GENERAL
1.01
RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
B. Specifications throughout all Divisions of the Project Manual are directly applicable to this
Section, and this Section is directly applicable to them.
1.02
REFERENCE STANDARDS
A. The latest published edition of a reference shall be applicable to this Project unless identified
by a specific edition date.
B. All reference amendments adopted prior to the effective date of this Contract shall be
applicable to this Project.
C. All materials, installation and workmanship shall comply with all applicable requirements and
standards.
1.03
SUBMITTALS
A. Product Data:
1. Product data for each type of foundation drainage material required.
B. Record Documents:
1. Shop drawings for interfacing with total Site drainage system.
2. Certification signed by Contractor and foundation drainage system Installer that installed
materials conform to specified requirements and system was successfully checked and
tested prior to covering with filtering and drainage fill.
PART 2 - PRODUCTS
2.01
GENERAL
A. All materials shall meet or exceed all applicable referenced standards, federal, state and local
requirements, and conform to codes and ordinances of authorities having jurisdiction.
2.02
DRAINAGE PIPE AND FITTINGS
A. Perforated Clay Pipe: ASTM C 700, "Standard Strength," unglazed.
B. Perforated Polyvinyl Chloride Pipe: ASTM D 2729.
C. Perforated Concrete Pipe: ASTM C 444, Type 1 and applicable requirements of ASTM C 14,
Class 2.
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D. Perforated Bituminized Fiber Pipe: ASTM D 2311.
2.03
COMPOSITE DRAINAGE BOARD
A. Provide prefabricated composite drainage board as part of overall foundation drainage
system.
B. Drainage Core: Manufacturer's standard three dimensional, nonbiodegradable, plastic
materials designed to effectively conduct water to foundation drainage system under
maximum soil pressures.
1. Minimum flow rate of 15 gpm per foot width at 3600 psf, when tested in accordance with
ASTM D 4716.
C. Filter Fabric: Manufacturer's standard nonwoven geotextile fabric of polypropylene or
polyester fibers, or a combination of them.
D. Products: Subject to compliance with requirements, provide one of the following:
1. "Amerdrain 500," American Wick Drain Corp.
2. "Enkadrain 9120," Akzo Industrial Systems Co.
3. "Battle Drain," Exxon Chemical Company.
4. "Hydroduct 2," W.R. Grace & Co.
5. "Sheet Drain," Greenstreak, Inc.
6. "Miradrain 6000," Mirafi, Inc.
7. "Hydraway 100," Monsanto Company.
2.04
SOIL MATERIALS
A. Impervious Fill:
composite.
Clayey gravel and sand mixture capable of compacting to a dense
B. Drainage Fill: Evenly graded mixture of natural or crushed gravel or crushed stone and
natural sand with 100 percent passing a ½ inch sieve and 0 to 5 percent passing a No. 50
sieve.
C. Filtering Material: Evenly graded mixture of natural or crushed gravel or crushed stone and
natural sand with 100 percent passing a 1½ inch sieve and 0 to 5 percent passing a No. 50
sieve.
PART 3 - EXECUTION
3.01
PREPARATION
A. Examine adjacent surfaces to receive foundation drainage system to verify suitability. Do not
begin installation until subsurface conditions are satisfactory to accept drainage system.
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INSTALLATION
A. Installation shall meet or exceed all applicable federal, state and local requirements,
referenced standards and conform to codes and ordinances of authorities having jurisdiction.
B. All installation shall be in accordance with manufacturer’s published recommendations.
C. Underfloor Drainage System: Excavate for underfloor drainage system after subgrade
material has been compacted but before drainage fill course has been placed. Provide a
clear horizontal distance between drain pipe and trench wall on both sides not less than 2
times diameter of drain pipe, unless otherwise shown. Grade bottom of trench excavations to
required slope and compact to a firm, solid bed for drain system.
D. Apply and compact impervious fill material to raise low areas or where unsatisfactory bearing
soil may occur.
E. Impervious Fill at Footings: After concrete footings have been cured and forms removed,
place impervious fill material on subgrade adjacent to bottom of footing. Place and compact
impervious fill to dimensions indicated or, if not indicated, not less than 6 inches deep and 12
inches wide.
F. Filtering Material: Place supporting layer of filtering material over compacted subgrade where
drainage pipe is to be laid to depth indicated or, if not indicated, to a compacted depth of not
less than 4 inches.
G. Laying Drain Pipe: Lay drain pipe solidly bedded in filtering material. Provide full bearing for
each pipe section throughout its length to true grades and alignment, and continuous slope in
direction of flow.
1. Lay perforated pipe with perforations down and joints tightly closed in accordance with
pipe manufacturer's recommendations. Provide collars and couplings as required.
2. Provide recesses in excavation bottom to receive bells for drain pipe having bell and
spigot ends. Lay pipe with bells facing up slope and with spigot end entered fully into
adjacent bell. Seal joint in accordance with local practices having jurisdiction.
H. Testing Drain Lines: Test or check lines before backfilling to assure free flow. Remove
obstructions, replace damaged components, and retest system until satisfactory.
1. After testing drain lines, place additional filtering material to a depth of 4 inches around
sides and top of drains.
I.
Composite Drainage Board: Coordinate placement of drainage mat with other foundation
drainage materials.
J.
Comply with manufacturer's instructions for securing matting to substrate. Use adhesives and
mechanical fasteners as recommended by matting manufacturer. Lap edges of fabric and
extend fabric around foundation drainage pipe in accordance with mat manufacturer's
recommendations. Protect in place matting during backfill operations in accordance with
matting manufacturer's instructions.
1. Do not use drainage mat as protection board over waterproof membrane unless
otherwise approved by membrane manufacturer.
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K. Drainage Fill: Place drainage fill over drain lines after satisfactory testing and covering of
drain lines with filtering material. Completely cover drain lines to a width of at least 6 inches
on each side and above top of pipe to within 12 inches of finish grade. Place fill material in
layers not exceeding 3 inches in loose depth and compact each layer placed.
1. Overlay drainage fill material with one layer of 15 lb., asphalt or tar saturated felt or
synthetic drainage fabric, overlapping edges at least 4 inches.
L. Fill to Grade: Apply impervious fill material over compacted drainage fill at footing drains,
placing material in layers not exceeding 6 inches in loose depth and thoroughly compacting
each layer. Carry impervious fill to indicated finish elevations and slope away from building
perimeter.
END OF SECTION 33 46 00
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