The Application of Cementation in Mining
THE first application of the cementation process took place in the year 1864, according to H. Standish BaU, when a break in the brickwork lining at a depth of 270', in one of the Rhine Preussen pits near Homburg, was sealed by running in milk of cement from the surface by means of a small hand pump. At about th e same time Monsieur Portier adopted the method in F rance for repairing breaks in shaft lining. Figure 1 is descriptive of the Portier system and is of interest when compared with modern practice. During the next thirty years numerous attempts were made to improve the process ; the general method used in sinking being to put clown bore holes outside the pe ri meter of the shaft for the purposes of inj ection.
Cement, Cementation, cementation process, dolomite, grout, sodium silicate, stuffing box, Grout, Pressure, Process, Processes, Shafts, Treatment, Water, Waters