SandMax DCM - Quartz Sand Filled Geocomposite Mat
SandMax DCM
SandMax DCM is a three-layer geocomposite material developed to protect slopes or constructed structures in challenging field conditions. It contains enriched quartz sand and is combined with nonwoven geotextiles.
SandMax DCM's protection performance comes from the weight provided by the quartz sand within its structure. The mat settles onto the applied surface under its own mass and creates resistance against surface movement caused by currents, waves or rainfall. The nonwoven geotextile layers hold the sand fill in place while also acting as a filter, allowing water to pass through but preventing the migration of fine grained material from the subsoil. Thanks to its flexible structure, it conforms to uneven and sloped surfaces, and it is shipped in rolls for fast installation on site.
SandMax DCM Functions
SandMax DCM combines the weight, flexibility and filtration properties derived from its quartz sand fill and nonwoven geotextile layers into a single product. This structure allows it to perform surface protection, erosion control and soil stabilisation functions together.
Erosion Control
The weight provided by the sand fill prevents the surface soil from being carried away by rainfall and surface runoff. It forms a permanent protective layer on slope and embankment surfaces during the period until vegetation cover develops.
Coastal Protection, Breakwater
It stabilises the ground surface along shorelines where wave and current action is high. In underwater applications, the weight of its fill keeps the mat in place and prevents scouring of the base material.
Protection
Laid over geomembranes and similar geosynthetic layers, it protects them against puncture and mechanical damage. By covering subsea pipelines and cables, it forms a buffer layer against external impacts.
Soil Protection Under Challenging Conditions
SandMax DCM is used in applications such as the protection of subsea structures, the stabilisation of cable and pipelines, and the prevention of coastal erosion. It also provides protection against erosion along highway and railway slope edges. Produced in rolls, this flexible mat conforms to the geometry of the surface on which it is applied and offers different thickness options according to the conditions of use.
SandMax DCM Features
- Three layered geocomposite structure containing enriched quartz sand
- The mass provided by the sand fill keeps the mat in place under current and wave action
- The nonwoven geotextile layers act as a filter, allowing water to pass through while preventing the migration of fine grained subsoil material
- Its flexible structure conforms to irregular and sloped surfaces
- Shipped in rolls, installed quickly and practically on site
- Suitable for underwater applications, maintaining its position under water
- Provides protection in a thinner cross section as an alternative to natural stone fill and rock armour (riprap)
Frequently Asked Questions
1. What Is SandMax DCM?
It is a three layered geocomposite mat containing enriched quartz sand and combined with nonwoven geotextile layers. It was developed for the protection of slopes and structures under challenging field conditions.
2. How Does SandMax DCM Provide Protection?
Its protection performance comes from the weight provided by the quartz sand within its structure. The mat settles onto the applied surface under its own mass and creates resistance against surface movement caused by currents, waves or rainfall.
3. Can SandMax DCM Be Used Underwater?
Yes, the product is suitable for underwater applications. Thanks to the weight provided by its sand fill, it maintains its position under current action and prevents scouring of the base material.
4. In Which Projects Is SandMax DCM Used?
It is used for coastal and stream slope protection, erosion control on highway and railway slopes, subsea pipeline and cable protection, and as a protection layer over geomembrane liners. It is also preferred for base stabilisation in breakwater and groyne structures.
5. What Is the Difference Between SandMax DCM and Rock Armour (Riprap)?
Riprap application requires a thick cross section, heavy equipment and intensive material haulage. SandMax DCM, on the other hand, is shipped in rolls and laid on site, providing protection in a much thinner cross section and significantly shortening installation time.
6. Does SandMax DCM Allow Water to Pass Through?
The nonwoven geotextile layers act as a filter, allowing water to pass through while preventing the migration of fine grained material from the subsoil. This prevents water pressure from building up beneath the mat.
