ASTM D2321 PDF

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ASTM D – Standard Practice for Underground Installation of ASTM D , AASHTO Section 30 and CAN/CSA B define good practices. ASTM D Standard Practice for Underground Installation of ASTM D is also the recommended installation standard by all manufacturers of. This standard is issued under the fixed designation D ; the number immediately NOTE 2—The following ASTM standards may be found useful in.


Astm D2321 Pdf

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D Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and Standard + Redline PDF Bundle, 24, $, ADD TO CART. Bedding shall be designed in shall be designed in accordance with ASTM. C12 – types A,B,C – for rigid pipe and ASTM rigid pipe and ASTM. D – types I, II. ASTM D ().pdf - Download as PDF File .pdf), Text File .txt) or read online.

Install to a minimum of 6 in. Install and minimum of 6 in. C Use Std. C Std. C Use voids and haunch hand tampers or vi Use hand tampers or vi- hand tampers or vi- hand tampers or im- areas are filled. For bratory compactors. Main- high densities use vi- Maintain moisture tain moisture content bratory compactors. Final Backfill Compact as required by Compact as required by Compact as required by Compact as required by Suitable as restricted the engineer.

Compact as required by the engi- neer.

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They may be used as final backfill as permitted by the engineer. B When using mechanical compactors avoid contact with pipe.

When compacting over pipe crown maintain a minimum of 6 in. When using larger compactors maintain minimum clearances as required by the engineer See X1. C The minimum densities given in the table are intended as the compaction requirements for obtaining satisfactory embedment stiffness in most installation conditions see 7.

Where a chance for water in the optimum see Test Methods D The practicality of obtain- trench exists, embedment materials should be selected for their ing and maintaining the required limits on moisture content is ability to be readily densified while saturated that is, free- an important criterion for selecting materials, since failure to draining, cohesionless granular materials. In addition to safety sieve see Table 1. To enhance placement around small considerations, trench width in unsupported, unstable soils will diameter pipe and to prevent damage to the pipe wall, a smaller depend on the size and stiffness of the pipe, stiffness of the maximum size may be required see X1.

When final backfill embedment and in-situ soil, and depth of cover see X1. If it is determined that the use of such 6. Trench Excavation equipment provides an installation consistent with the require- 6.

Slope trench walls that support of the pipe and its embedment is maintained or provide supports in conformance with all local and national throughout installation.

Other books: ASTM B819 DOWNLOAD

Ensure that sheeting is sufficiently tight standards for safety. Open only as much trench as can be safely to prevent washing out of the trench wall from behind the maintained by available equipment. Backfill all trenches as sheeting. Provide tight support of trench walls below viaducts, soon as practicable, but not later than the end of each working existing utilities, or other obstructions that restrict driving of day.

At all times prevent runoff and surface water the engineer, sheeting driven into or below the pipe zone from entering the trench. When top of sheeting is to be cut work area, dewater to maintain stability of in-situ and imported off, make cut 1.

Maintain water level below pipe bedding and foun- pipe.

Leave rangers, whalers, and braces in place as required to dation to provide a stable trench bottom. Use, as appropriate, support cutoff sheeting and the trench wall in the vicinity of the sump pumps, well points, deep wells, geofabrics, perforated pipe zone. Timber sheeting to be left in place is considered a underdrains, or stone blankets of sufficient thickness to remove permanent structural member and should be treated against and control water in the trench.

When excavating while biological degradation for example, attack by insects or other depressing ground water, ensure the ground water is below the biological forms as necessary, and against decay if above bottom of cut at all times to prevent washout from behind ground water. Maintain NOTE 6Certain preservative and protective compounds may react control of water in the trench before, during, and after pipe adversely with some types of thermoplastics, and their use should be installation, and until embedment is installed and sufficient avoided in proximity of the pipe material.

Astm d2321

To preclude loss of soil support, employ dewatering methods that 6. Movable supports should not be used below 6. Before mov- mining of the trench bottom or walls, the foundation, or other ing supports, place and compact embedment to sufficient zones of embedment. Provide dams, cutoffs or other barriers depths to ensure protection of the pipe. As supports are moved, periodically along the installation to preclude transport of finish placing and compacting embedment.

Backfill all trenches after the 6. Fill voids left blankets for transport of running water to sump pits or other on removal of supports and compact all material to required drains. Use well graded materials, along with perforated densities. The space between the pipe and trench wall must be wider than the 7. Installation compaction equipment used in the pipe zone. Minimum width 7. Protect the end of the Table 2.

If full NOTE 7Installation of pipe in areas where significant settlement may be anticipated, such as in backfill adjacent to building foundations, and in entry is not achieved, disassemble and clean the joint and sanitary landfills, or in other highly unstable soils, require special reassemble.

Use only lubricant supplied or recommended for engineering and are outside the scope of this practice. The following ASTM standards may be found useful in connection with this practice: Note 3: The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

Our policy towards the use of cookies Techstreet, a Clarivate Analytics brand, uses cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser. Install in 6-in. Install and trench conditions.

In- trench conditions and maximum layers. Level final grade by compact in 6-in.

Minimum depth imum layers. Level 6-in. Minimum depth 4 in.

Level final grade by control is maintained. Minimum depth Install and compact in cuts. Level final grade by hand. Haunching Suitable as restricted Install and compact in Suitable as restricted Suitable as restricted Suitable only in dry above. Install and above. Install and trench conditions and maximum layers. Work in around pipe compact in 6-in. Work in imum layers. Work in ment and compaction by hand to provide uniform support.

Work in around pipe by hand to provide uniform support. Initial Backfill Suitable as restricted Install and compact to a Suitable as restricted Suitable as restricted Suitable as restricted above.

Install to a minimum of 6 in. Install and minimum of 6 in.

C Use Std. C Std. C Use voids and haunch hand tampers or vi Use hand tampers or vi- hand tampers or vi- hand tampers or im- areas are filled.

For bratory compactors. Main- high densities use vi- Maintain moisture tain moisture content bratory compactors.

ASTM D2321 (2000).pdf

Final Backfill Compact as required by Compact as required by Compact as required by Compact as required by Suitable as restricted the engineer. Compact as required by the engi- neer.

They may be used as final backfill as permitted by the engineer. B When using mechanical compactors avoid contact with pipe.

When compacting over pipe crown maintain a minimum of 6 in.

When using larger compactors maintain minimum clearances as required by the engineer See X1. C The minimum densities given in the table are intended as the compaction requirements for obtaining satisfactory embedment stiffness in most installation conditions see 7.

Where a chance for water in the optimum see Test Methods D The practicality of obtain- trench exists, embedment materials should be selected for their ing and maintaining the required limits on moisture content is ability to be readily densified while saturated that is, free- an important criterion for selecting materials, since failure to draining, cohesionless granular materials.

In addition to safety sieve see Table 1. To enhance placement around small considerations, trench width in unsupported, unstable soils will diameter pipe and to prevent damage to the pipe wall, a smaller depend on the size and stiffness of the pipe, stiffness of the maximum size may be required see X1.

When final backfill embedment and in-situ soil, and depth of cover see X1. If it is determined that the use of such 6. Trench Excavation equipment provides an installation consistent with the require- 6.

Slope trench walls that support of the pipe and its embedment is maintained or provide supports in conformance with all local and national throughout installation. Ensure that sheeting is sufficiently tight standards for safety. Open only as much trench as can be safely to prevent washing out of the trench wall from behind the maintained by available equipment.

Backfill all trenches as sheeting.

Standard Practice for

Provide tight support of trench walls below viaducts, soon as practicable, but not later than the end of each working existing utilities, or other obstructions that restrict driving of day. At all times prevent runoff and surface water the engineer, sheeting driven into or below the pipe zone from entering the trench.

When top of sheeting is to be cut work area, dewater to maintain stability of in-situ and imported off, make cut 1.

Maintain water level below pipe bedding and foun- pipe. Leave rangers, whalers, and braces in place as required to dation to provide a stable trench bottom.Slope trench walls or provide supports in conformance with all local and national standards for safety. To guard against loss of pipe support from lateral migration of nes from the trench wall into open-graded embedment materials, it is sufficient to follow the minimum embedment width guidelines in X1.

The gradation and relative size of the embedment and adjacent materials must be compatible in order to minimize migration see X1.

For embedment 7. NoteCoarse Fraction as used in this table is defined as material retained on a No.