with the environmental sections and Section 02242 – Turbidity Barriers. Part 2 Products - Not Used Part 3 Execution 3.1 General 3.2 Environmental Protection Co-ordinate this clause with the environmental sections. [.3] Edit as required. END OF SHEET
Diaphragm: In sufficient quantities to construct 1000 mm by 3000 mm compartments within the mats. PVC coating for gabion [baskets] [mats]: 0.5 mm thick PVC with the following properties. Property Requirement Test Method Colour Specific Gravity 1.30 to 1.35 ASTM D792 Hardness 50 to 60 Shore D ASTM D2240 Tensile Strength ≥ 210 kg/cm2 ASTM D412 Modulus of Elasticity at 100% Strain ≥ 190 kg/cm2 ASTM D412 Brittleness Temperature Not higher than -9ºC ASTM D746 Resistance to Abrasion < 12% weight loss ASTM D1242 Salt Spray and Ultraviolet Tests (3000 hour test period) Free of crack, blisters, splits and change in colour. ≤ 6% change in specific gravity. ≤ 25% change in modulus of elasticity and tensile strength. ≤ 10% change in hardness and abrasion resistance. ASTM B117 ASTM Spenex (overlapping) fasteners for gabions: 3.05 mm diameter stainless fasteners in accordance with ASTM A313, Type 302, Class I. Gabion Rock: Refer to Section 02330 – Earthwork Materials for materials specifications. Geotextile: to Section 02342 – Geotextile. Concrete Cap: [Minimum compressive strength of 30 MPa at 28 days, using Type 50 Sulphate Resistant Portland Cement, with an air content between 5% and 8%, and a maximum slump of 100 mm.] [Refer to Section [ ] – Cast-in-Place Concrete.] Provide care of water to permit the work to be carried out in the dry. Provide receiving surfaces that are even, and constructed to the grades, slopes, and elevations specified in the Contract Documents. Remove any snow, ice, or other deleterious material from the receiving surfaces prior to installing the gabions. Place geotextile as specified in the Contract Documents. Do not commence installing gabions until the Minister has inspected the receiving surfaces. Rectify defects, including any identified by the Minister.
Use this section to specify requirements for box-beam guardrail. Also refer to Alberta Transportation’s “Standard Specifications for Highway Construction” and “Standard Drawings for Highway Construction”. Carefully co-ordinate this section with Section 05505 – Metal Fabrications, if used, and particularly when both sections include similar items. Close attention to the scope, measurement, and payment clause in Section 01280 – Measurement Schedule is required, particularly in cases where the metal fabrications specified in this section are being paid for under a Lump Sum or Unit Price per metre, and metal fabrications in Section 05505 – Metal Fabrications are being paid under a Unit Price per kilogram. Edit this section to suit the Contract requirements. Heading of Specification Text Specification Note Part 1 General 1.1 Detail Drawings Refer to Alberta Transportation’s manual entitled “Standard Drawings for Highway Construction” to obtain typical details for the design and construction of guardrails. Ensure the correct detail drawings are appended to this section. 1.2 References 1.3 Submittals 1.4 Delivery, Storage, and Handling Part 2 Products 2.1 Materials to Alberta Transportation’s document entitled “Standard Specifications for Highway Construction” for information on material specifications. .8 Co-ordinate with Section – Cast-in-Place Concrete, if required. 2.2 Shop Fabrication of Steel Components
At locations that fail to show a uniform stand of grass for any reason during the calendar year following the year of initial seeding, repair the defective locations as determined by the Minister. A uniform stand of grass will be considered as grass growth that shows no deterioration or exposed soil greater than 1 square metre in size, and provides a minimum of 80 percent ground cover as determined by the Minister. The Minister will inspect the seeded areas during the month of May of the calendar year following the year of initial seeding. Complete any required reseeding work prior to June 15 of that year. This date will be extended if, in the opinion of the Minister, the weather conditions prior to June 15 are not suitable for reseeding Work. Meet all the requirements for initial seeding, including seeding method, seed mix composition, [fertilizer composition], application rates, harrowing, surface tracking as applicable. Contractor will not be required to reseed any area more than once. Control adverse vegetation as specified in Section 01392 – Environmental Management. END OF SECTION