308 - Geotextiles for Base - Revision history

Jhudson-fishbeck: /* Geogrid */

2025-10-13T18:44:56Z

Geogrid

Jhudson-fishbeck: /* Geotextile Fabric */

2025-10-13T18:44:44Z

Geotextile Fabric

Jhudson-fishbeck: /* PRECONSTRUCTION */

2025-10-13T18:44:34Z

PRECONSTRUCTION

Jhudson-fishbeck: /* Non-Woven */

2025-10-13T18:44:23Z

Non-Woven

Jhudson-fishbeck: /* Woven Geotextile Fabric */

2025-10-13T18:44:12Z

Woven Geotextile Fabric

Clarkj25 at 17:50, 13 October 2025

2025-10-13T17:50:25Z

Clarkj25 at 17:47, 13 October 2025

2025-10-13T17:47:30Z

Clarkj25: /* Description of Materials */

2025-10-13T16:40:10Z

Description of Materials

Clarkj25: /* Description of Materials */

2025-10-13T16:38:48Z

Description of Materials

Clarkj25 at 16:32, 13 October 2025

2025-10-13T16:32:59Z

@@ Line 110: / Line 110: @@
 |+
 |-
-| [[File:308-010.jpg|500px|thumb|center|'''Biaxial Geogrid, Installed''']]
+| [[File:308-010.jpg|200px|thumb|center|'''Biaxial Geogrid, Installed''']]
 |}
 === Aggregate or Granular Material Placement ===

@@ Line 100: / Line 100: @@
 |+
 |-
-| [[File:308-008.png|500px|thumb|center|'''Geotextile Fabric, Installation''']] || [[File:308-009.jpg|500px|thumb|center|'''Typical Repair Detail''']]
+| [[File:308-008.png|200px|thumb|center|'''Geotextile Fabric, Installation''']] || [[File:308-009.jpg|200px|thumb|center|'''Typical Repair Detail''']]
 |}

@@ Line 81: / Line 81: @@
 |+
 |-
-| [[File:308-007.png|500px|thumb|center|'''Sample General Certification of Test Results''']]
+| [[File:308-007.png|300px|thumb|center|'''Sample General Certification of Test Results''']]
 |}

@@ Line 45: / Line 45: @@
 |+
 |-
-| [[File:Non-Woven_Geotextile_Fabric_Close-Up.jpg|300px|thumb|center|'''Non-Woven Geotextile Fabric Close-Up''']] || [[File:Non-Woven Geotextile Fabric Roll.jpg|300px|thumb|center|'''Non-Woven Geotextile Fabric Roll''']]
+| [[File:Non-Woven_Geotextile_Fabric_Close-Up.jpg|200px|thumb|center|'''Non-Woven Geotextile Fabric Close-Up''']] || [[File:Non-Woven Geotextile Fabric Roll.jpg|200px|thumb|center|'''Non-Woven Geotextile Fabric Roll''']]
 |}

@@ Line 37: / Line 37: @@
 |+
 |-
-| [[File:Woven_Geotextile_Fabric_Close-Up.jpg|300px|thumb|center|'''Woven Geotextile Fabric Close-Up''']] || [[File:Woven_Geotextile_Fabric_Roll.jpg|300px|thumb|center|'''Woven Geotextile Fabric Roll''']]
+| [[File:Woven_Geotextile_Fabric_Close-Up.jpg|200px|thumb|center|'''Woven Geotextile Fabric Close-Up''']] || [[File:Woven_Geotextile_Fabric_Roll.jpg|200px|thumb|center|'''Woven Geotextile Fabric Roll''']]
 |}

@@ Line 96: / Line 96: @@
 The Contractor should place geotextile fabric in direct contact with the soil below in accordance with the manufacturer’s installation guidelines. Placement should commence from the downstream location and continue upstream. Refer to the profile sheets of the plans to determine flow direction for the roadway. All wrinkles or waves developed during placement should be eliminated. The Inspector should verify all seams are shingle-lapped a minimum of 2 feet for both longitudinal and transverse seams. At the stage line, additional material may need to be placed to allow for the required overlap once the subsequent stage has begun. If the Contractor elects to stitch the seam together, they should follow the manufacturer’s recommendations and the seam should face upwards for inspection purposes. The Inspector should verify stitching of seams is not completed with nylon thread. Ensure the field or factory seams meet the minimum grab tensile strength for the application in accordance with ASTM D4632/D4632M. Any damage or tears to the geotextile fabric during placement must be repaired by the Contractor in accordance with the manufacturer’s recommendations at no expense to the contract. Typically, the repair patch will extend a minimum of 3 feet beyond the damaged area.
-''Geotextile Fabric, Installation''
+{|
-[[File:308-009.jpg|300px]]
+=== Geogrid ===
-=== Geogrid ===
+{|
-The Contractor will unroll the geogrid parallel to the roadway centerline, and in accordance with the manufacturer’s installation guidelines. Verification the strength axis of the geogrid is placed in accordance with the manufacturer’s guidelines is key to the functionality of the geogrid. Failure to do so could cause the geogrid not to perform its intended purpose. They should anchor the geosynthetic material in place, eliminate wrinkles or waves, and overlap adjacent rolls a minimum of 2 feet, or according to manufacturer guidelines. The Inspector should verify the geogrid is taut prior to placement of the subsequent aggregate layer. To assist in tensioning the geogrid, placement of the subsequent aggregate layer must proceed from the centerline of the geogrid and be placed outward whenever possible. The Contractor should verify any wrinkles that developed during aggregate placement are flattened prior to being covered. A minimum of 6 inches of the subsequent aggregate layer should be placed over the geogrid before allowing construction vehicles on the geogrid.
+|+
 === Aggregate or Granular Material Placement ===

@@ Line 54: / Line 54: @@
 * Biaxial geogrid has strength in both axes. Biaxial geogrid provides more stabilization than uniaxial geogrid. This is the most commonly used type of geogrid on roadway projects.
 * Multiaxial geogrid has strength in multiple directions and provides the most stability. The grid pattern and amount of strength axes can vary depending on the application.
- {|
+{|
 |+
 |-
@@ Line 77: / Line 77: @@
 #* Verify the installation procedure is in accordance with the manufacturer’s recommended installation procedure.
 # Contact residents and businesses if there will be temporary access restrictions.
-''Sample General Certification of Test Results''
+{|
 {{top}}

@@ Line 37: / Line 37: @@
 |+
 |-
-| [[File:Woven_Geotextile_Fabric_Close-Up.jpg|200px|thumb|center|Woven Geotextile Fabric Close-Up]] || [[File:Woven_Geotextile_Fabric_Roll.jpg|200px|thumb|center|Woven Geotextile Fabric Roll]]
+| [[File:Woven_Geotextile_Fabric_Close-Up.jpg|200px|thumb|center|'''Woven Geotextile Fabric Close-Up''']] || [[File:Woven_Geotextile_Fabric_Roll.jpg|200px|thumb|center|W'''oven Geotextile Fabric Roll''']]
 |}
@@ Line 45: / Line 45: @@
 |+
 |-
-| [[File:Non-Woven_Geotextile_Fabric_Close-Up.jpg|200px|thumb|center|Non-Woven Geotextile Fabric Close-Up]] || [[File:Non-Woven Geotextile Fabric Roll.jpg|200px|thumb|center|Non-Woven Geotextile Fabric Roll]]
+| [[File:Non-Woven_Geotextile_Fabric_Close-Up.jpg|200px|thumb|center|'''Non-Woven Geotextile Fabric Close-Up''']] || [[File:Non-Woven Geotextile Fabric Roll.jpg|200px|thumb|center|'''Non-Woven Geotextile Fabric Roll''']]
 |}
@@ Line 57: / Line 57: @@
 |+
 |-
-| [[File:Biaxial Geogrid Close-Up.jpg|200px|thumb|center|Biaxial Geogrid Close-Up]] || [[File:Biaxial Geogrid Rolls.jpg|200px|thumb|center|Biaxial Geogrid Rolls]]
+| [[File:Biaxial Geogrid Close-Up.jpg|200px|thumb|center|'''Biaxial Geogrid Close-Up''']] || [[File:Biaxial Geogrid Rolls.jpg|200px|thumb|center|'''Biaxial Geogrid Rolls''']]
 |}