Public works . gallons per minute into a 15,000 gallonreservoir or supply tank, from which it was pumpedto mixer with usual equipment. By pumping con-tinually twenty-four hours, thus having full reservoirat beginning of a days work, adequate supply wasobtained for mixer and ponding. The tanks used in storing water were made inan octagonal shape using full sheets of sheet metal16 gauge, backed up with 4x4s; that is, the 4x4swere nailed around the top of the tank, with a postat each joint, using Arco Sealit to seal the jointsof the sheet metal. A concrete floor was laidin the bottom of the tank,
Public works . gallons per minute into a 15,000 gallonreservoir or supply tank, from which it was pumpedto mixer with usual equipment. By pumping con-tinually twenty-four hours, thus having full reservoirat beginning of a days work, adequate supply wasobtained for mixer and ponding. The tanks used in storing water were made inan octagonal shape using full sheets of sheet metal16 gauge, backed up with 4x4s; that is, the 4x4swere nailed around the top of the tank, with a postat each joint, using Arco Sealit to seal the jointsof the sheet metal. A concrete floor was laidin the bottom of the tank, out of waste cement ob-tained by the sack cleaner, made just thick enough tobe water tight. The tanks cost about $75 each, andwere easily and quickly set up. CONCRETING One of the mixers was a Rex 21 E paver and theother a Koehring 21 E paver. The concrete depositedon subgrade is spread by three shovelers. It isstruck off, tamped and belted by means of a Lake-wood finishing machine, going over the surface not. SECTION OF COMPI^ETED ROAD less than three times. The final touch is given by ahand belt operated some distance back of the finish-ing machine. Immediately back of the finishing, theconcrete is protected by canvas covers on frameworksupported by the forms. When the concrete ishardened sufficiently (generally about one-half daybehind the mixer), dams are thrown across and alongthe edge of pavement and the surface ponded. Considerable difficult> was encountered with hairchecks, especially on the windy days. Wetting thesunshades or canvas laid directly on the surface wasfound ineffective for preventing these hair trouble is entirely eliminated by judiciouslyusing a fine spray of water from a hose nozzle in sucha manner as to produce a heavy mist, keeping thesurface moist until such time as the ponding can becarried forward. The concrete gang includes a foreman, two truckdumpers, a mixer man, three men grading concrete,one man operating the finishing machine,
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectmunicip, bookyear1896
