1710.1DESCRIPTION

KS · 2015 Standard SpecificationsBook pages 807–807View official source ↗

1710 – GEOSYNTHETICS

1700-17SECTION 1710

GEOSYNTHETICS

This specification covers the requirements for paving fabrics and geosynthetics and securing pins installed for subsurface drainage, separation, base course reinforc ement and subgrade stabilization. This also covers the requirements for separation geotextile for erosion control.

1710.2REQUIREMENTS

a.General.

(1)Compose all geosynthetics of at least 85% by weight polyolefins or polyesters.

(2)Use geosynthetics resistant to chemical attack, mildew and rot.

(3)Package in protective wrapping , store, handle and identify all geosynthetics according to ASTM D

4873.

(4)Do not use torn or punctured geosynthetics.

(5)Woven geotextiles with slit-tape or slit-film filaments in both the machine direction (MD or warp) and

the cross-machine direction (CD, weft or fill) are prohibited.

(6)When seams are required for geotextiles, use "Butterfly" seams that have a Federal Standard

designation of Type SSD-1. Place the s titching approximately 1 inch from the fo ld. Make sure the two fabric edges are even and have been completely penetrated by the se am. Use polyester, polypropylene or Kevlar thread with durability equal to or great than the material used in the fabric. Seam strength requirements shall be as specified in the Contract Documents.

b.Securing Pins. When required, provide steel securing pins that are nominally 1/4 inch diameter, 18

inches long, pointed at one end and fitted with a 1-1/2inch outside diameter steel washer at the other end.

c.Paving Fabric. Provide a nonwoven geotextile that complies with the general physical and the geotextile

property requirements for an AASHTO M 288 paving fabric unless otherwise specified in the Contract Documents. Use a paving grade asphalt recommended by the manufacturer and conforming to the provisions in the AASHTO M 288 Appendix Section 1.6, unless otherwise specified in the Contract Documents, to saturate the paving fabric, as well as bond it to the existing pavement.

d.Subsurface Drainage. Provide a woven or nonwoven geotextile that complies with the general physical

and the geotextile property requirements for an AASHTO M 288, Class 2, subsurface drainage geotextile unless otherwise specified in the Contract Documents.

e.Separation Geotextile. Provide a woven or nonwoven geotextile that complies with the general physical

and the geotextile property requirements for an AASHTO M 288, Class 2, separation geotextile unless otherwise specified in the Contract Documents. See subsection 1710.2a.(5) regarding the use of slit-tape geotextiles.

f.Base Course Reinforcement. Provide a single-layer geogrid or woven geotextile that complies with the

properties in TABLE 1710-1 for reinforcement of an aggregate base course. MD: Machine Direction, CD: Cross- machine Direction.

Source: Kansas Standard Specifications for State Road and Bridge Construction, 2015 Edition. Pages 807–807 of 978.

← Previous

1700-16 c. The Bureau of Construction and Materials will mainta in a list of prequalified s ubstructure waterproofing

1710.2 REQUIREMENTS