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 Free of crack, blisters, splits and change in colour. 6% change in specific gravity. ≤ Salt Spray and Ultraviolet Tests ASTM B117 25% change in modulus of ≤ (3000 hour test period) ASTM elasticity and tensile strength. 10% change in hardness and ≤ abrasion resistance. 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.
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.
Division02.docx