PIPE INSTALLATION. A. General: Unload pipe, fittings and accessories near the place where they are to be laid in the trench, and handle with care to avoid damage. Cutting of pipe shall be done by means of an approved type of mechanical cutter.
PIPE INSTALLATION. A. Pipe:
PIPE INSTALLATION. A. Piping shall be installed as indicated on the Drawings. Where exact locating dimensions of piping are not indicated on the Drawings, the Landscape Architect's approval shall be obtained for proposed locations before installation.
PIPE INSTALLATION. (11-20-12) (Rev. 8-18-15) 300 SP3 R01 Revise the 2012 Standard Specifications as follows: Page 3-1, Article 300-2, Materials, line 15, in the materials table, replace “Flowable Fill” and “Geotextiles” with the following: Item Flowable Fill, Excavatable Section 1000-6 Grout, Type 2 1003 Geotextiles, Type 4 1056 Page 3-1, Article 300-2, Materials, lines 23-24, replace sentence with the following: Provide foundation conditioning geotextile and geotextile to wrap pipe joints in accordance with Section 1056 for Type 4 geotextile. Page 3-3, Subarticle 300-6(A), Rigid Pipe, line 2, in the first paragraph, replace “an approved non-shrink grout.” with “grout.” and line 4, in the second paragraph, replace “filtration geotextile” with “geotextile”. Page 3-3, Article 300-7, Backfilling, lines 37-38, in the first and second sentences of the fifth paragraph, replace “Excavatable flowable fill” with “Flowable fill”. CLASS IV AGGREGATE STABILIZATION: (11-18-14) 510 SP5 R12 Description As directed by the Engineer, stabilize xxxxx subgrade material with Class IV aggregate to prevent rutting of the subgrade prior to paving directly on the subgrade. Remove material as needed in cut areas prior to placing the Class IV aggregate. Materials Refer to Division 10. Item Section Select Material, Class IV 1016 Use Class IV Select Material for Class IV Aggregate Stabilization.
PIPE INSTALLATION. (11-20-12) 300 SP3 R01 Revise the 2012 Standard Specifications as follows: Page 3-1, Article 300-2, Materials, line 23-24, replace sentence with: Provide foundation conditioning geotextile in accordance with Section 1056 for Type 4 geotextile. ASPHALT PAVEMENTS - SUPERPAVE: (6-19-12) (Rev. 10-21-14) 605, 609, 610, 650, 660 SP6 R01 Revise the 2012 Standard Specifications as follows: Apply tack coat uniformly across the existing surface at target application rates shown in Table 605-1. TABLE 605-1 APPLICATION RATES FOR TACK COAT Existing Surface Target Rate (gal/sy) Emulsified Asphalt New Asphalt 0.04 ± 0.01 Oxidized or Milled Asphalt 0.06 ± 0.01 Concrete 0.08 ± 0.01 Apply tack coat at a temperature within the ranges shown in Table 605-2. Tack coat shall not be overheated during storage, transport or at application. TABLE 605-2 APPLICATION TEMPERATURE FOR TACK COAT Asphalt Material Temperature Range Asphalt Binder, Grade PG 64-22 350 - 400°F Emulsified Asphalt, Grade RS-1H 130 - 160°F Emulsified Asphalt, Grade CRS-1 130 - 160°F Emulsified Asphalt, Grade CRS-1H 130 - 160°F Emulsified Asphalt, Grade HFMS-1 130 - 160°F Emulsified Asphalt, Grade CRS-2 130 - 160°F Page 6-7, Article 609-3 FIELD VERIFICATION OF MIXTURE AND JOB MIX FORMULA ADJUSTMENTS, lines 35-37, delete the second sentence of the second paragraph. Page 6-18, Article 610-1 DESCRIPTION, lines 40-41, delete the last sentence of the last paragraph. Page 6-19, Subarticle 610-3(A) Mix Design-General, line 5, add the following as the first paragraph: Warm mix asphalt (WMA) is allowed for use at the Contractor’s option in accordance with the NCDOT Approved Products List for WMA Technologies available at: https://xxxxxxx.xxxxx.xxx/resources/Materials/MaterialsResources/Warm%20Mix%2 0Asphalt%20Approved%20List.pdf Page 6-21, Subarticle 610-3(C) Job Mix Formula (JMF), replace Table 610-1 with the following: TABLE 610-1 DESIGN MIXING TEMPERATURE AT THE ASPHALT PLANTA Binder Grade HMA JMF Temperature WMA JMF Temperature Range PG 64-22 300ºF 225 - 275ºF PG 70-22 315ºF 240 - 290ºF PG 76-22 335ºF 260 - 310ºF
PIPE INSTALLATION. All pipes must be laid to the design lines and grades within the following tolerances:
PIPE INSTALLATION. 1 Install HDPE liner pipes true to line and grade. .2 Handle pipe using methods recommended by pipe manufacturer.
PIPE INSTALLATION. (11-20-12) 300 SP3 R01 Revise the 2012 Standard Specifications as follows: Page 3-1, Article 300-2, Materials, line 23-24, replace sentence with: Provide foundation conditioning geotextile in accordance with Section 1056 for Type 4 geotextile.
PIPE INSTALLATION. A. Proper implements, tools, and facilities shall be provided and used for the safe and convenient performance of the work. All pipe, fittings, valves, and hydrants shall be lowered carefully into the trench by means of a xxxxxxx, ropes, or other suitable tools or equipment in such a manner as to prevent damage to pipeline material and protective coatings and linings. Under no circumstances shall pipeline materials be dropped off or dumped into the trench. The trench should be dewatered prior to installation of the pipe.
PIPE INSTALLATION. TS-415 All piping shall be properly supported or suspended on stands, clamps, hangers, etc. of approved design. Supports shall be designed to permit free expansion and contractions while minimizing vibration. Pipes shall be anchored as directed by means of steel clamps securely fastened to the pipe and rigidly attached to the building structure. TS-416 Screw threads shall be cut clean and true and joints made tight without caulking. No bushing shall be used. Reducing fittings shall be used to change pipe size, and reductions to be made with eccentric reducers, short radius fittings shall not be used. TS-417 The drawings indicated generally the size and location of piping as designed for space conditions; ceilings heights and may not be changed until coordinated other contractors. If it is seemed necessary to modify the piping system the contractor shall size the pipes on the basic of 3-6 fps. Velocity and re-check pump heads which are presently indicative and for purposes of an estimate. TS-418 Piping shall be properly graded to secure easy circulation and prevent noise and water hammer. As much pitch as space conditions allow must be given. Capped dirt pockets to be installed at all risers heel, low points, and other places where dirt may accumulate must be provided. Allowance must be made for proper provision for expansion and contractions in all portions of pipe work to prevent undue strain in piping or machines. Expansion joints to be installed as directed by the Managing official. TS-419 All fittings such as elbow, tees, bushes etc. shall be of best quality foreign made or local class "A" according local standard with smooth interior surfaces. Approved screw unions with bronze or steel bodies and ground brass taper or spherical joints shall be installed at traps instruments, etc. and where else directed to permit easy connection and disconnection.
