716-717 for Highway Construction Page 704 of 715 SECTION 716-717 - RESERVED for Highway Construction Page 705 of 71 5 SECTION 718 – GEOTEXTILES
718.01 General Requirements.
Use geotextile consisting of a long chain polymeric filaments or yarns oriented into a stable n etwork that retains its relative structure, including selvedges, during handling, placement , and design service life. Ensure that at least 85 percent by weight of the long chain polymers are polyolefins, polyesters, or polyamides. Ensure the geotextile has no defects or tears. The Engineer may reject geotextile if dimensional stability or resistance to ambient temperatures, acid or alkaline conditions, and micro- organisms/insects are unsatisfactory. Provide geotextile in accordance with the properties indicated for each specified use. Provide the geotextile without treatment or coating that might adversely alter its physical properties after installation.
718.02 Certi fication.
Submit the geotextile manufacturer’s certification consisting of certified test results showing the geotextile and factory seams meet the specifications. Ensure the certification includes the named product and representative samples have been delivered and tested as specified. Include the following information in the certif ication for each geotextile to be used:
1.Manufacturer’s name and current address.
2.Full product name.
3.Geotextile roll number.
4.Proposed geotextile use(s).
5.Certified test results. Submit the name and address of the testing agency and the test date on the identification certification. Provide a means to identify the geotextile , including a lot number that can be used to ensure the product delivered is the certified product. Submit a certified copy of the test results including each test result, each mean roll value, the calculated standard deviation for each lot, and the manufacturer’s coefficient of variation for test results. Submit duplicat e certification with 1 copy sent with the shipment to the Engineer and 1 copy sent to the Central Materials Laboratory .
718.03 Samples.
The Engineer will sample geotextiles for QA testing . Cut the geotextile samples from the roll with scissors, sharp knife, or by another suitable method that produces a smooth edge and does not cause ripping or tearing. Do not take samples from the outer wrap of the geotextile rol l or from the inner wrap of the core. The minimum dimension for each sample is 6 feet by the full roll width. Submit 1 sample for each lot. Label the samples with the lot and batch number, date of sampling, project number, spec ifications, manufacturer, and product name. The Department defines a lot as geotextile rolls within the same consignment or shipment that a manufacturer produced with the same lot number, and product name or designation.
Source: Idaho Standard Specifications for Highway Construction, 2023 Edition. Pages 740–740 of 768.