防水的推屋顶复盖材料

Roofing Waterproof Material It is a kind of windable sheet waterproof material. It abides by standard-GB18242-2000 Waterproof Membrane of Elastomer (SBS) Modified Asphalt Types, Grades and Specifications Type Divides into according to the physical mechanics performance A and AA Is different according to the embryo base, divides into polyester embryo (PY) and Bolivian filament embryo (G); Presses down the surface facing material to divide into polyethylene membrane (PE), granulated sugar (S), the mineral aggregate (M) three kinds; ·specification Width--1000mm. Thickness:3mm, 4mm, 5mm Length: 10m, 7.5/10m, 10m Table 1 substrate upper surface materials Polyester fiber(PY) Glass fiber (G) PE film PY- PE G - PE Fine sand PY- S G - S Mineral granules PY- M G - M Physical and Mechanical Properties Standard value of GB18243-2000- see Table 2. Table 2 No. Substrates PY G Types A AA A AA 1 Content of soluble substances g/ m2 ≥ 3mm 2100 1300 4mm 2900 5mm 3500 2 Water impermeability pressure, MPa ≥ 0.3 0.2 0.3 retention time, min≥ 30 3 Heat resistance degree, °C 90 105 90 105 No slipping, flowing or dropping 4 Tensile strength, N/50mm ≥ Longitudinal 450 800 350 500 Transverse 250 300 5 Elongation at break % ≥ Longitudinal 30 40 — Transverse 6 Flexibility at low temperatures, °C -20 -25 -20 -25 No cracks 7 Tearing strength, N≥ Longitudinal 250 350 250 350 Transverse 170 200 8 Accelerated weather test Appearance Grade 1 No slipping, flowing or dropping Strength retention% ≥ Longitudinal 80 Flexibility at low temperatures, °C -15 -20 -15 -20 No cracks Features Spunbonded polyester fiber membrane--integrated advantage properties of spunbonded polyester substrates and APP modified asphalt, wonderful integrated properties. It could form a waterproof layer, which has high strength and good property to stand against water pressure High tensile strength and elongation rate, strong adaptability for substrate shrinking distortion and cracks Good resistance to low temperature, corrosion, mildew and weathering Large thickness of PY fiber enables the products quite resistant to puncture, pressing, rubbing, tearing, and wearing Good construction performance, with firm and enduring joints No alkali glass fiber membrane--pretty high tensile strength, wonderful high and low temperature resistance, resistance to damnification, corrosion, mildew and weathering, good construction performance Applied Range It could be widely used in all kinds of waterproof engineering projects in all fields, especially in the following types of engineering projects All kinds of building roof engineering projects, treading, non-treading, heat preservation, non-heat preservation, planting building surfaces, roof parking lots, and converted building surfaces All kinds of underground waterproof or dampproof engineering projects Bridge surfaces of subways, tunnels, concrete roads, sewage treatment, garbage burying projects and other municipal engineering waterproof projects Water spraying pools, swimming pools, penstocks, water pools, and so on.