摘要:
A pipe coating finishing device is made up of a frame having a first arm and a second arm. A scraper is coupled to a first arm pipe end of the first arm for engaging a pipe to remove material in excess of a maximum pipe diameter. In addition, a vibrating plate is coupled to a second arm pipe end of the second arm for compacting an impinged concrete coating on the pipe. Also disclosed is a process for finishing an impinged concrete coating on a pipe with a device, as disclosed herein.
摘要:
An in situ method of repairing an underground conduit or pipe is disclosed. The method of repairing includes positioning a reinforcing fabric within the pipe being repaired, spaced apart from the inner surfaces of the pipe, and infiltrating the fabric with a bleed resistant cementitious composition.
摘要:
A refractory tile adapted for protecting boiler tubes from the corrosive and erosive effects of a hot gas stream comprises an elongated ceramic body covering only that side of a boiler tube upon which the hot gas impinges. The tile is hung on the tube with a threaded stud anchored on the tube and a nut threaded on the stud, urging the tile against the tube.
摘要:
in a concrete-wrapped pipe having an inner water-impermeable resinous coating, the concrete wrapping is formed with a continuous inner portion covering the resinous coating and a helically slotted outer portion forming a helical wrap, the helical slot extending at least to the depth of a mesh reinforcement embedded in the concrete. The concrete wrapping serves as a waterpermeable impact resistant barrier while permitting limited bending of the pipe.