Description of Composite Drainage Board
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The
composite drainage boards can be divided into composite plastic three-dimensional drainage boards, composite
capillary drainage boards, and composite drainage isolation pads according to their structure and shape.
1. The core of the composite plastic three-dimensional drainage board is a closed raised semicircular or
semi-conical raised shell produced by a special extrusion calendering process with polymer resin as the main raw
material, forming a sheet with a continuous membrane and shell, a certain three-dimensional space and support
stiffness. Composite permeable fabrics are generally polyester staple fiber needle-punched non-woven geotextiles or
polypropylene staple fiber needle-punched non-woven geotextiles
2. The core of the composite capillary drainage board is a densely structured drainage board produced by a special
melt extrusion process using PVC as the raw material. Composite permeable geotextiles are usually polyester staple
fiber needle-punched nonwoven geotextiles or polypropylene staple fiber needle-punched nonwoven geotextiles
3. Composite drainage spacers are made of high molecular polymer melt extruded random filaments piled up to form a
three-dimensional mesh structure as the core material, and the outer permeable filter cloth is generally polyester
staple fiber needle-punched nonwoven geotextiles or polypropylene staple fiber needle-punched nonwoven geotextiles
or filament spunbonded needle-punched nonwoven geotextile
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Composite plastic three-dimensional |
Composite capillary drainage board |
Composite drainage spacers |
Advantages of Composite Drainage Board:
1. Strong drainage: The composite drainage board has the function of rapid
drainage, and its drainage effect is equivalent to the drainage effect of one meter thick gravel. This strong
drainage performance can effectively reduce the seepage pressure at the foundation and reduce the risk of foundation
settlement.
2. Convenient construction: The composite drainage board has a strong structure
and can withstand large loads, which makes it suitable for engineering construction in various places and can
withstand pressure from above without being easily damaged.
3. Corrosion resistance: The composite drainage board has good corrosion
resistance and can resist the erosion of the material by chemicals in the soil. Even if it is baptized and scour by
sewage for a long time, the material will not be damaged. It has high acid and alkali resistance and long service
life.
4. Long-term high-pressure load: The composite drainage board can withstand a
compression load of about 3000Ka, which enables it to maintain stable performance under high-pressure environment.
It has a wide range of uses and can be applied to many large-scale projects.
5. Convenient construction: The composite drainage board is easy and quick to
install, which can shorten the construction period and reduce costs.
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Strong drainage |
High tensile strength |
Convenient construction |
