1709 – SUBSTRUCTURE WA TERPROOFING MEMBRANE
1700-16 c. The Bureau of Construction and Materials will mainta in a list of prequalified s ubstructure waterproofing
systems. Products will remain prequalified as long as the formulation and manufacturing processes remain unchanged, and field experience indicates that the material functions appropriately. Changes in formulation or manufacturing processes will requir e a new prequalification review. 1709.5 BASIS OF ACCEPTANCE Prequalification as specified in subsection 1709.4 . Receipt and approval of a Type C certification as specified in DIVISION 2600 . Visual inspection of performance in the field. 1710 – GEOSYNTHETICS
1700-17 Section 1710
GEOSYNTHETICS 1710.1 DESCRIPTION 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. 1710.2 REQUIREMENTS
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 fila ments 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 806–807 of 978.