Portuguese term (edited): cortina de bet�o pl�stico

The construction of the secant pile plastic concrete wall was the most ... a deep plastic concrete cut-off wall and a RCC wall on top of D/S coffer dam. ...
www.ejge.com/2005/Ppr0518/Ppr0518.htm

Plastic concrete diaphragm walls are generally constructed as cut-off walls across dam foundations to minimize seepage losses. These walls are mostly constructed in river alluvium. The loss of plastic concrete into voids can be predicted and controlled. On important projects two such walls are constructed in series for water tightness. Recently a seepage measurement system has been constructed at forty- year old Jatiluhur dam in Indonesia. The work involved construction of plastic concrete cut-off wall in rock-fill. This unique and difficult experience of constructing plastic concrete wall in rock-fill environment has been described in this paper.
www.ejge.com/2005/Ppr0518/Abs0518.htm

a dam with an arched shape that resists the force of water pressure; ... solid concrete walls that resist shear forces; often used in buildings constructed ...
www.pbs.org/wgbh/buildingbig/glossary.html