Geosynthetics have been extensively implemented all around the world for improving weak foundations, reinforcing critical slopes and retaining walls, coastal protection systems, and improving weak pavement layers. Both woven and non-woven geotextiles have been used for reinforcement and hydraulic applications in pavement design. A newly available wicking geotextile serves several functions such as drainage, capillary action, separation, and reinforcement in a single layer. The wicking fiber is made of special hydrophilic and hygroscopic 4DGTM (DG = Deep Grove) fibers with a multichannel cross-section. The multichannel cross-section has a high number of wicking channels per fiber and a high shape factor, enabling it to laterally transport water through its channels in an unsaturated environment through capillary action.
A small-scale box setup is used to understand the moisture migration and redistribution capacity of the wicking geotextile in a controlled environment.
Box Dimension : 3ft. x 3ft x 3ft.
Environmental control chamber with a Relative Humidity (RH) of 50%, and 95%
Drainage control unit
Moisture Sensors and Data Loggers:
- ZL6 Cellular Data Logger, for use worldwide on 3G cellular networks using H-1 SIM, allows access to data via the Internet, for use with all METER sensors, self-enclosed, solar charging, batteries included.
- TEROS 10, VWC, Analog Sensor, 5-meter Stereo Cable
- Shape Array Accelerometers: Purpose-built for heavy-duty horizontal measurement: soil settlement, rail-line deformation, and pipeline monitoring. SAA’s watertight construction combines twist-resistant joints and thick-walled stainless steel segment tubes. The construction contains a compact array of MEMS accelerometers.