Railway impermeable membrane, impermeable membrane Wenfeng District, Kim Chi Hua Yi Tian Long

 Underground water board for corrosion, seepage engineering HDPE waterproof board (the new HDPE water board) products are executed according to the American standard ASTM D production, meet or exceed national standards, product specifications, thickness 0.2mm-2.5mm railway impermeable membrane , wide 1m-8m Gansu impermeable membrane, to meet the artificial lake seepage, sewage tank seepage, reservoir seepage, environmental protection, mining and chemical projects seepage and corrosion requirements. 1, excellent flexibility, barrier properties, elongation and wear resistance; waterproof board a construction process. Preparatory work before laying: 1.1 Ground handling: Requires the matrix formation, 1.2 contact with the membrane surface, 2. Laying method: 2.1 laying along a certain direction, but do not pull too tight, you should leave a certain amount of stretching to accommodate substrate deformation. Waterproof Plate 2.2, to adjust to each unit in order to weld the two units. 2.3 After laying waterproof board, use sand bags to suppress, prevent sand affects the next edge welding. 3. waterproof plate welding seams processing is the key construction program, the general thermal welding method, PE film contact surface heat treatment, so that surface melting, and then through the pressure, so that fused together. 3.1 For the paved waterproof board, edge seams request can not have oil, water, dust and so on. 3.2 To adjust before welding the two side seams PE single film, so that a certain width lap, lap width is generally 6 to 8 cm and a smooth, wrinkle-free. 3.3 using special welding machine for welding. 2, with good isolation, puncture resistance; 3, no chemical pollution; 4, acid and a variety of chemicals, good dimensional stability, good adhesion Yantian impermeable membrane, to facilitate construction. HDPE geomembrane: [Shandong Kim Chi Hua Yi Tian Long Company] high-density HDPE geomembrane is the result of the reorganization on the basis of the general formula impermeable membrane, the selection of low high-density polyethylene material, mainly composed of 97.5% high density polyethylene , about 2.5% of carbon black, anti-aging agents, antioxidants, UV absorbers and stabilizer materials, with the world's most advanced automated production equipment geotextile, by extrusion technology. Physical and mechanical properties of LDPE geomembrane varieties Indicators Project Geomembrane HDPE geomembrane common type of environmentally friendly EVA tensile strength (vertical and horizontal) (MPa) ≥14 ≥17 ≥25 ≥18 elongation at break (vertical and horizontal) (%) ≥400 ≥ 400 ≥550 ≥600 right-angled tearing strength (vertical and horizontal) (N / mm) ≥50 ≥80 ≥110 ≥90 water vapor permeability coefficient (g · cm / cm · s · pa) ≤1.0x10-16 ≤1.0x10-16 ≤1.0x10-16 ≤1.0x10-16 temperature range + 70 ℃ ~ -70 ℃ + 70 ℃ ~ -70 ℃ + 70 ℃ ~ -70 ℃ + 70 ℃ ~ -70 ℃ resistance to environmental stress cracking (F20 · h) - - ≥1500 - 200 ℃ oxidation induction time (min) - - ≥20 - Railway impermeable membrane impermeable membrane Wenfeng District, Kim Chi Hua Yi Tian Long provided by Shandong Kim Chi Hua Yi Engineering Materials Co., Ltd .. Shandong Kim Chi Hua Yi Engineering Materials Co., Ltd. (www.sdjchy.com) strong, credible, in Tai'an, Shandong waterproof, moisture-proof materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Kim Chi Hua Yi and you hand in hand into the brilliant, for a better future!