CONCRETE PIPE & BOX CULVERT INSTALLATION - American ...

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ALIGN PIPE Align bell and spigot of pipes to be jointed. Before homing the joint, check that the gasket is in contact with the entry taper around the entire circumference. Improper alignment can dislodged gasket causing leaks or possibly break the bell. a guide and do not replace or supersede project specifications, contract documents, or specific manufacturer’s recommendations. Mastic Mastic sealants consist of rubber compounds or bitumen and inert mineral filler, which are usually applied at ambient temperatures. The joint surfaces are thoroughly cleaned, dried and prepared in accordance with the manufacturer’s recommendations. A sufficient amount of sealant should be used to fill the annular joint space with some squeeze out. During cold weather, better workability of the mastic sealant can be obtained if the mastic and joint surfaces are warmed. Mortar Mortar consists of portland cement paste, sand 42 American Concrete Pipe Association • www.concrete-pipe.org
and water. The joint surface is thoroughly cleaned and soaked with water immediately before the joint is made. A layer of paste or mortar is placed in the lower portion of the bell or groove end of the installed pipe and on the upper portion of the tongue or spigot end of the pipe section to be installed. The tongue or spigot is then inserted into the bell or groove of the installed pipe until some mortar is squeezed out. Any annular joint space between the adjacent pipe ends is filled with mortar and the excess mortar on the inside of the pipe wiped and finished to a smooth surface. Geotextile Filter Fabrics As an alternative measure, where groundwater and joint configurations warrant, a band of geotextile filter fabric, usually 1 to 2 feet (.3 to .6 meters) wide may be wrapped around the exterior of the pipe joint and secured with either tape or stitching to prevent soil infiltration into joints of storm and culvert pipe. External Bands Portland cement mortar bands are sometimes specified around the exterior of the pipe joint. A slight depression is excavated in the bedding material to enable mortar to be placed underneath the pipe. The entire external joint surface is then cleaned and soaked with water. Special canvas or cloth diapers can be used to hold the mortar as it is placed. Backfill material should be immediately placed around the pipe. Rubber-mastic bands also can be used around the exterior of the pipe joint. The bands are stretched tightly around the barrel of the pipe and held firmly in place by the weight of the backfill material. American Concrete Pipe Association • www.concrete-pipe.org 43
Page 1 and 2: CONCRETE PIPE & BOX CULVERT INSTALL
Page 3 and 4: Table of Contents I. CONCRETE PIPE
Page 5 and 6: I. CONCRETE PIPE INSTALLATION MANUA
Page 7 and 8: • laying sequence • required sp
Page 9 and 10: the path of the pipe as it is lower
Page 11 and 12: the job site in a greater number of
Page 13 and 14: ordinary rule or stadia rod can mea
Page 15 and 16: control point the depth from the co
Page 17 and 18: or three control points. Where line
Page 19 and 20: ance adequate enough to insure prop
Page 21 and 22: on pipe stresses. Compaction of the
Page 23 and 24: Installation Bedding Haunch and Low
Page 25 and 26: VERTICAL ELLIPTICAL PIPE STANDARD E
Page 27 and 28: For those projects still using the
Page 29 and 30: CLASS D BEDDING Used only with circ
Page 31 and 32: EMBANKMENT BEDDING CIRCULAR PIPE (M
Page 33 and 34: TRENCH BEDDING CIRCULAR PIPE (MILLI
Page 35 and 36: TRENCH BEDDINGS ELLIPTICAL & ARCH P
Page 37 and 38: EMBANKMENT BEDDINGS ELLIPTICAL & AR
Page 39 and 40: gasket and/or pipe manufacturer’s
Page 41: LUBRICATE GASKET Lubricate the gask
Page 45 and 46: tion, and connected by means of a c
Page 47 and 48: ations and is best obtained from th
Page 49 and 50: ALIGNMENT FOR RADIUS PIPE Last Stra
Page 51 and 52: SOIL DENSITY Several test procedure
Page 53 and 54: • • • • • stubs properly
Page 55 and 56: inlet pipe to the downstream manhol
Page 57 and 58: EXFILTRATION TEST American Concrete
Page 59 and 60: water leakage. The section of pipe
Page 61 and 62: or develop criteria for pipe larger
Page 63 and 64: ally not practical because of the c
Page 65 and 66: PRE-INSTALLATION PRECAUTIONS The Sa
Page 67 and 68: When unloading boxes, caution shoul
Page 69 and 70: SITE PREPARATION EXCAVATION Trenche
Page 71 and 72: used (less than 1 1/2 in. preferred
Page 73 and 74: INSTALLATION BOX ALIGNMENT It is cr
Page 75 and 76: tinuous strip, however if this is n
Page 77 and 78: When trench shields are removed tak
Page 79 and 80: III. SPECIFICATIONS Concrete pipe i
Page 81 and 82: ASTM C 118 (C 118M): Concrete Pipe
Page 83 and 84: including hydraulic transients, of
Page 85 and 86: or exfiltration acceptance limits t
Page 87 and 88: IV. APPENDIX DEFINITIONS Backfill o
Page 89 and 90: ial formed into a defined cross sec
Page 91: 1303 West Walnut Hill Lane, Suite 3

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