ABSTRACT
Naxian base a classical column base which is a simple stone block without mouldings, on which the fluted column rests.
Naxian base, Delphi, Greece, c. 570 BC
NBR nitrile rubber. neat grout, cement grout, neat cement grout; a grout consisting of a mixture of a hydraulic binder such as cement and water, without fine aggregate or sand.
