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<br />ACCEPTABLE FILL MATERIALS: STORMTECH SC -740 CHAMBER SYSTEMS
<br />MATERIAL LOCATION
<br />DESCRIPTION
<br />AASHTO MATERIAL
<br />CLASSIFICATIONS
<br />COMPACTION / DENSITY REQUIREMENT
<br />FINAL FILL: FILL MATERIAL FOR LAYER V STARTS FROM THE TOP OF THE
<br />LAVER TO THE BOTTOM OF FLEXIBLE PAVEMENT OR UNPAVED FINISHED
<br />GRADE ABOVE. NOTE THAT PAVEMENT SUBBASE MAY BE PART OF THE 'D'
<br />LAVER.
<br />ANY SOIUROCK MATERIALS, NATIVE SOILS, OR PER ENGINEERS PLANS.
<br />CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS.
<br />INITIAL FILL: FILL MATERIAL FOR LAYER 'C' STARTS FROM THE TOP OF THE
<br />EMBEDMENT STONE ('B' LAVER) TO 18' (450 mm) ABOVE THE TOP OF THE
<br />CHAMBER. NOTE THAT PAVEMENT SUBBASE MAY BE A PART OF THE
<br />LAYER.
<br />GRANULAR WELL -GRADED SOIL/AGGREGATE MIXTURES, <35% FINES OR
<br />PROCESSED AGGREGATE.
<br />MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU OF THIS
<br />LAYER.
<br />EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS FROM THE
<br />FOUNDATION STONE (A' LAVER) TO THE 'C' LAYER ABOVE.
<br />TA FOUNDATION STONE: FLL BELOW CHAMBERS FROM THE SUBGRADE UP TO CLEAN, CRUSHED, ANGULAR STONE
<br />THE FOOT (BOTTOM) OF THE CHAMBER. OR RECYCLED CONCRETES
<br />PLEASE NOTE:
<br />1. THE LISTED MSHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN, CRUSHED, ANGULAR. FOR EXAMPLE, A SPECIFICATION FOR 64 STONE WOULD STATE: 'CLEAN, CRUSHED, ANGULAR NO.4 (AASHTO M43) STONE'.
<br />2. STORMTECH COMPACTION REQUIREMENTS ARE MET FOR 'A' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 6' (150 mm) (MAX( LIFTS USING TWO FULL COVERAGES WITH A VIBRATORY COMPACTOR.
<br />3. WHERE INFILTRATION SURFACES MAY BE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAY BE ACHIEVED BY RAKING OR DRAGGING WITHOUT COMPACTION EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STORMTECH FOR
<br />COMPACTION REQUIREMENTS.
<br />4. ONCE LAYER 'C' IS PLACED, ANY SOIUMATERIAL CAN BE PLACED IN LAYER D UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASE SOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OF LAYER 'C' OR' D' AT THE SITE DESIGN ENGINEER'S DISCRETION.
<br />5. WHERE RECYCLED CONCRETE AGGREGATE IS USED IN LAYERS' A' OR 'B' THE MATERIAL SHOULD ALSO MEET THE ACCEPTABILITY CRITERIA OUTLINED IN TECHNICAL NOTE 620 "RECYCLED CONCRETE STRUCTURAL BACKFILL'.
<br />CLEAN, CRUSHED, ANGULAR STONE
<br />OR RECYCLED CONCRETE'
<br />WA
<br />AASHTO M145'
<br />A-1, A-2-4, A-3
<br />OR
<br />MSHTO M43'
<br />3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7. 78, 8, 89, 9, 10
<br />PREPARE PER SITE DESIGN ENGINEER'S PLANS. PAVED
<br />INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND
<br />PREPARATION REQUIREMENTS.
<br />BEGIN COMPACTIONS AFTER 17 (300 mm) OF MATERIAL OVER
<br />THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN
<br />6" (150 mm) MAX LIFTS TO A MIN. 95% PROCTOR DENSITY FOR
<br />WELL GRADED MATERIAL AND 95% RELATIVE DENSITY FOR
<br />PROCESSED AGGREGATE MATERIALS. ROLLER GROSS
<br />VEHICLE WEIGHT NOT TO EXCEED 12,000 In (53 kN). DYNAMIC
<br />FORCE NOT TO EXCEED 20,000 b (69 kN).
<br />AASHTO M43'
<br />3, 357, 4, 467, 5, 56, 57
<br />AASHTO 1843'
<br />3, 357, 4.467, 5, 58, 57
<br />NO COMPACTION REQUIRED.
<br />PLATE COMPACT OR ROLL TO ACHIEVE A FLAT SURFACE u
<br />PERIMETER STONE
<br />(SEE NOTE 4)
<br />EXCAVATION WALL (CAN
<br />BE SLOPED OR VERTICAL)
<br />ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXT1LE ALL
<br />AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS
<br />12" (300 mm) MIN
<br />NOTES:
<br />Li,
<br />yuuuu u4 a u 514Ey,4u.L.,.....
<br />PAVEMENT LAYER (DESIGNED
<br />BY SITE DESIGN ENGINEER)
<br />D / TO BOTTOM OR RISME WOMEN, TORUwAm
<br />NBTAUATTOM MERE RUTTING FROM VENGEa MAI OLQIK
<br />C NCREASE COVER TO 2, (l.O mm).
<br />SC -740
<br />END CAP
<br />SUBGRADE SOILS
<br />(SEE NOTE 3)
<br />(150 mm) MIN
<br />6' (150 mm) MIN
<br />30'
<br />(760 mm)
<br />18'
<br />(450 mm) MIN'
<br />(2.4 m)
<br />MAX
<br />"THIS CROSS SECTION DETAIL REPRESENTS
<br />MINIMUM REQUIREMENTS FOR INSTALLATION.
<br />PLEASE SEE THE LAYOUT SHEET(S) FOR
<br />PROJECT SPECIFIC REQUIREMENTS.
<br />DEPTH OF STONE TO BE DETERMINED
<br />BY SITE DESIGN ENGINEER 6' (150 mm) MIN
<br />51'(1295 mm) — — 12'(300 mm)TYP
<br />1. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418, 'STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS'.
<br />2. SC -740 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS'.
<br />3. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE WITH
<br />CONSIDERATION FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS.
<br />4. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS.
<br />5. REQUIREMENTS FOR HANDLING AND INSTALLATION:
<br />• TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS.
<br />• TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 2'.
<br />• TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION. a) THE ARCH STIFFNESS CONSTANT SHALL BE GREATER THAN OR EQUAL TO 550 LBS/FT/%. THE ASC IS DEFINED IN SECTION 62.8
<br />OF ASTM F2416. AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73' F / 23' C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR
<br />YELLOW COLORS.
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