Classification Of Covering And Lining Membranes Complete The Following Chart
Covering and lining membranes are materials that are used to protect the surfaces of buildings, structures, and other objects from the effects of environmental factors such as weather, water, and chemicals. There are many types of covering and lining membranes available, each with its own unique properties and applications. In this article, we will discuss the classification of covering and lining membranes and complete the following chart to help you understand the different types of membranes available.
Classification of Covering and Lining Membranes
Covering and lining membranes can be classified into four main categories:
- Bituminous Membranes
- Polymeric Membranes
- Bituminous-polymeric Membranes
- Other Membranes
Bituminous Membranes
Bituminous membranes are made from bitumen, a sticky, black, and highly viscous liquid or semi-solid form of petroleum. They are commonly used as roofing and waterproofing materials due to their excellent water resistance and durability. Bituminous membranes can be further classified into two types:
- APP (Atactic Polypropylene) Modified Bituminous Membranes
- SBS (Styrene Butadiene Styrene) Modified Bituminous Membranes
APP Modified Bituminous Membranes
APP modified bituminous membranes are made by blending bitumen with atactic polypropylene (APP), a thermoplastic polymer. They are typically used in low-temperature environments due to their excellent flexibility and resistance to cold temperatures. APP modified bituminous membranes are commonly used as roofing materials for buildings and structures.
SBS Modified Bituminous Membranes
SBS modified bituminous membranes are made by blending bitumen with styrene-butadiene-styrene (SBS), a synthetic rubber. They are typically used in high-temperature environments due to their excellent flexibility and resistance to heat. SBS modified bituminous membranes are commonly used as waterproofing materials for underground structures such as tunnels and basements.
Polymeric Membranes
Polymeric membranes are made from synthetic polymers such as PVC (Polyvinyl Chloride), TPO (Thermoplastic Olefin), EPDM (Ethylene Propylene Diene Monomer), and PIB (Polyisobutylene). They are commonly used as roofing, waterproofing, and lining materials due to their excellent resistance to weather, chemicals, and UV radiation. Polymeric membranes can be further classified into three types:
- PVC Membranes
- TPO Membranes
- EPDM Membranes
PVC Membranes
PVC membranes are made from polyvinyl chloride, a thermoplastic polymer. They are typically used as roofing materials for buildings due to their excellent resistance to weather and UV radiation. PVC membranes are also commonly used as lining materials for swimming pools and other water containment structures.
TPO Membranes
TPO membranes are made from thermoplastic olefin, a blend of polypropylene and ethylene-propylene rubber. They are typically used as roofing materials for buildings due to their excellent resistance to weather and UV radiation. TPO membranes are also commonly used as waterproofing materials for underground structures such as tunnels and basements.
EPDM Membranes
EPDM membranes are made from ethylene propylene diene monomer, a synthetic rubber. They are typically used as roofing materials for buildings due to their excellent resistance to weather and UV radiation. EPDM membranes are also commonly used as lining materials for ponds and other water containment structures.
Bituminous-polymeric Membranes
Bituminous-polymeric membranes are made by combining bitumen with a synthetic polymer such as PVC or TPO. They offer the benefits of both bituminous and polymeric membranes, such as excellent water resistance, durability, and flexibility. Bituminous-polymeric membranes are commonly used as roofing and waterproofing materials for buildings and structures.
Other Membranes
Other membranes include natural rubber, neoprene, and butyl rubber membranes. They are typically used in specialized applications where their unique properties are required. For example, neoprene membranes are commonly used as lining materials for chemical storage tanks due to their excellent resistance to chemicals.
Conclusion
Understanding the classification of covering and lining membranes is essential for choosing the right membrane for your project. By completing the chart above, you can easily compare the different types of membranes and choose the one that best suits your needs. Whether you need a roofing material for your building or a waterproofing material for your basement, there is a covering and lining membrane available that will meet your requirements.