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Dayu GroupDayu Group was founded in 1998. It is a large-scale modern comprehensive enterprise integrating R & D, production, sales, construction and technical services. It is one of the leading enterprises in China's waterproof industry. Waterproof industry's top ten most influential brands, China's top 500 building materials enterprises, China's top 500 real estate enterprises preferred material suppliers.
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ProductsDayu Group has advanced production equipment and R & D resources, domestic and foreign joint R & D center and production base. With exquisite technology to achieve continuous upgrading and innovation of products, a number of products have been included in the national construction industry waterproof special scientific and technological achievements promotion project, obtained the first-class construction qualification of waterproof, thermal insulation and anti-corrosion integration, and provided high quality waterproof series products and construction services for many national major projects.
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ApplicationDayu Group and China Academy of Building Research have jointly established Dayu Technology Research and Development Center (provincial level) and Engineering Research and Development Center. Waterproof materials can be widely used in underground, roof, tunnel, high-speed rail, subway, bridge, municipal, environmental protection and other fields. In order to solve the problem of building waterproof leakage to provide a comprehensive and efficient solution, to achieve the same life of waterproof materials and buildings.
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CaseDayu Group has provided high quality waterproof products and construction services for major national projects such as the Olympic Village of the Beijing Olympic Games, Wukesong Gymnasium, Beijing Morgan Center, Shenyang Metro, Qingdao Metro and so on. at the same time, it has also reached strategic cooperation with many well-known real estate enterprises such as Longhu Real Estate, China Merchants Group and Greenland Group.
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Contact UsNational unified hotline: 400-990-6678
Email: lndy@lndy.top
Join us: +86-427-5918022
Started in 1998, the world's leading integrated provider of waterproof services
Since 1998，Leading Integrated Waterproof Provider In The World！
Product overview
Dayu®PVC PVC waterproofing membrane is a polymer sheet extruded from PVC resin particles and additives through a certain production process.
l Additives: containing plasticizers, ultraviolet absorbers, anti-aging agents, stabilizers, etc.
Product Features
l Can be used in the roof exposed, life can reach more than 20 years.
lWind resistance, radiation resistance, high and low temperature resistance, good weather resistance.
l Wide design, less overlap, good integrity.
l The hot air welding process has the advantages of high reliability of construction quality, small hidden danger, high peeling strength, and the same quality and life as the base metal.
l High strength, excellent resistance to root stab.
Specification classification
|
Kind |
Homogeneous type (H)/fiber backing type (L)/reinforced fabric (P) |
|
Thickness |
1.2mm/1.5mm//2.0mm |
|
Width |
1000mm/2000mm |
|
Length |
20m |
Scope of application
l Mainly used for single-storey factory roof waterproof.
l Can be used for reservoirs, dams, pools, canals moisture-proof seepage.
l Can also be used for planting green roof, pipe gallery roof, and underground waterproof engineering.
Construction process
l The laying process includes coil fixing and lapping.
l Fixed method has the mechanical fixed method, the full adhesive method, the empty laying pressure method. Among them, the mechanical fixing method is mainly used for industrial plant roofing.
lThe lap joint measures mainly adopt hot air welding technology to fuse the lap edges to realize the lap joint of the base metal body, and the glue bonding method can also be used.
performance index
Products in accordance with the national standard "polyvinyl chloride (PVC) waterproofing membrane" GB12952-2011 manufacturing.
Performance indicators meet standard requirements
List of physical performance indicators of coil parts:
|
Project |
Indicators (Class H) |
Indicators (Class L) |
Indicators (Class P) |
|
Thickness of resin layer above the middle tire base |
— |
— |
≥ 0.4mm |
|
Maximum pulling force |
— |
≥120n/cm |
≥250n/cm |
|
Tensile strength |
≥ 10MPa |
— |
— |
|
Elongation at maximum tension |
— |
— |
≥ 150% |
|
Elongation at break |
≥ 200% |
150% |
— |
|
Heat treatment dimensional change rate |
≤ 2.0% |
≤1.0% |
≤ 0.5% |
|
Low temperature bending |
-25 ℃, no crack |
-25 ℃, no crack |
-25 ℃, no crack |
|
impervious to water |
0.3MPa,2h, impervious to water |
0.3MPa,2h, impervious to water |
0.3MPa,2h, impervious to water |
|
Impact resistance |
0.5kg · m, impervious to water |
0.5kg · m, impervious to water |
0.5kg · m, impervious to water |
|
static load resistance |
— |
— |
20kg, no water seepage |
|
Joint peel strength |
≥ 4.0N/mm or coil failure |
≥ 4.0N/mm or coil failure |
≥ 3.0N/mm |
|
Right Angle Tear Strength |
≥ 50N/mm |
— |
— |
|
Trapezoid tear strength |
— |
≥ 150N |
≥ 250N |
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