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Hydrophilic Swelling Bentorub for concrete joint
- Category: Other Waterproofing Materials >>>
- Supplier: Beijing Long Way Times Science & Technology Co. Ltd. [Beijing China]Beijing
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Product Overview
Description
About us:
Beijing LangWei Times Science & Technology Co., Ltd
Founded in 2004, Beijing Long Way Times Science & Technology Co., Ltd. has been committed to the research and development of new type environmentally friendly building materials as well as the innovation of service and construction process.
The products developed by Langwei include AC-II liquid acrylate grouting materials (Patent No.20********2.7), MMA (Methyl Methacrylate) grouting materials, permeable crystalline waterproofing materials, polyurethane grouting materials, epoxy grouting materials and water-swelling water-proofing gel. the Director Member of Waterproof Sub-Committee and China Construction Industry Association. Our products are of top quality among domestic similar products.
Water-stop is based on natural rubber and synthetic rubber, mixed with various additives and fillers. It has good elasticity, abrasion resistance, aging resistance and tear resistance.
Applications of Expanding rubber water stops
Rubber Water stop is widely used in underground installation, tunnel and culvert, impounding reservoir, metro, and retaining dam and so on.
Physical property
Items | index | |||||
B | S | J | ||||
1. Hardness ( Shore A ) | 60±5 | 60±5 | 60±5 | |||
2.Tensile strength ,MPa ≥ | 15 | 12 | 10 | |||
3.Elongation at break , % ≥ | 380 | 380 | 300 | |||
4.Compression set % | 70ºC×24h,% ≤ | 35 | 35 | 35 | ||
23ºC×168h,% ≤ | 20 | 20 | 20 | |||
5.Tear strength,KN/m ≥ | 30 | 25 | 25 | |||
6.Brittleness temperature,°C ≤ | -45 | -40 | -40 | |||
7.Air aging | 70ºC×168h | Hardness ( Shore A ) ≤ | 8 | 8 | -- | |
Tensile strength,MPa ≥ | 12 | 10 | ||||
Elongation at break , % ≥ | 300 | 300 | ||||
100ºC×168h | Hardness ( Shore A ) ≤ | -- | -- | 8 | ||
Tensile strength, MPa ≥ | 9 | |||||
Elongation at break , % ≥ | 250 | |||||
8. Resistance ozone ageing 50pphm: 20%, 48h | 2grade | 2 grade | 0 grade | |||
9. Adhesion of rubber to metal | With contact section in elastomer | |||||
Advantages of rubber waterproof water stop bentonite
1. It is permanently active system, which swells up to approximately (150%~300%).
2. It is an ecological and user friendly system: simple and quick to install by means of gun nailing.
3. The composition of bentonite water-stop prevents premature swelling.
4. The waterstop has a proven track record in water treatment plants, water purification plants, water tanks,
metro works and other concrete structures subject to high water pressure
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