BIO ENERGY
Organic waste ferments easily, especially in Asia where the temperatures are very suitable for the bacteria to grow. Fermentation of waste produces biogas that can be used for power generation.
BIO ENERGY
Organic waste ferments easily, especially in Asia where the temperatures are very suitable for the bacteria to grow. Fermentation of waste produces biogas that can be used for power generation.
GEOFABRICS
Geotextiles and geogrids have secured a valued and permanent place among construction materials in civil engineering by contributing to increased efficiency in all facets of construction.
The wide range of woven geotextile, non-woven geotextile, woven and coated geogrid as well as extruded geogrid products are used worldwide in the building industry, landscaping and civil engineering for erosion control, drainage, soil reinforcement, stabilization and consolidation and for special applications in waste containment.
GEOLINERS
GEOLINERS
Geoliners are widely used for the containment of liquids, solids and waste materials in civil and environmental applications as there is an increasing awareness and better understanding of the negative effects of contaminated soil conditions on structures and the environment. Geoliners display a wide range of physical, mechanical and chemical resistance properties protecting our environment and water resources. A geomembrane is a very low permeability synthetic membrane liner or barrier commonly used to control fluid (or gas) migration in a human-made project, structure, or system.
CeTeau is able to offer a wide range of membranes that are compatible with the diverse range of applications and contaminants likely to be encountered.
PVC SHEET PILES
CeTeau PVC sheet piling systems are the new standard with many advantages compared to hard wood, concrete and steel sheet piling. Vinyl sheet piles are made of poly vinyl chloride also known as PVC: a material with excellent resistance to weather influences and it has a long service life. Moreover, the material will not be affected by natural forces occurring in the ground, rodents, and salt or fresh water. PVC sheet piling has a number of benefits over traditional steel timber or concrete piling, including, costs, durability, ease of handling and a reduced environmental impact.
VACUUM CONSOLIDATION
Vacuum Consolidation is a soft soil ground improvement method that is typically combined with Prefabricated Vertical Drains and Horizontal Drains (PVD+VCM) and basically is a solution to replace the use of a surcharge. Further to the installation of the PVD, it consists of the application of a suction force with vacuum to an isolated mass of soil in order to reduce the atmospheric pressure and excess water pore pressure present in the soil, resulting in a consolidation of the soil, an increase in the effective stresses without modifying the total state stresses.
The vacuum consolidation system consists of the installation of a drainage system (PVD) and Horizontal Drains, an isolation system and vacuum pumps. Once initialized, the vacuum is quickly distributed in the soil through the drainage system, reducing atmospheric pressure and excess pore pressure, creating a pressure differential between the prefabricated vertical drains (PVD) and the pore pressure present in the soils. This difference in pressures causes the water to flow vertically through the drain, causing a consolidation effect.
Because the force used is a result from the vacuum effect of the atmospheric pressure, VCM eliminates the need of the surcharge after installation of the PVD´s and thus, it eliminates the associated costs of the surcharging process.
VERTICAL WICK DRAIN
Vertical Wick Drains are the most economical ground improvement solution for soft soils with a high clay/silt content. CeTeau manufactures and installs Prefabricated Vertical Drains (PVD) to accelerate the settlement of soft soils. In combination with surcharge or vacuum pressure, the time required to reach the settlement is reduced from years to only months.
“Consolidation you can build on.”
VIBRO COMPACTION
Ground improvement techniques are geotechnical construction methodologies that modify and enhance the engineering properties of the soil mass by improving one or more of the following parameters: Increase in the soil density and shear strength, decrease of the compressibility, reduction of settlement (total and differential), increase in the soil bearing capacity, acceleration of the consolidation process, increasing the factor of safety against liquefaction in case of an earthquake and generally, restrengthening of the soils. There are a number of Ground Improvement Techniques available for different types of soils, different purposes and project requirements.