Houghton's Concrete Worker's Reference Books Volume 10-11

Houghton's Concrete Worker's Reference Books Volume 10-11

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ...This is accomplished by employing wire cloth with a No. 20 mesh or expanded metal lath; the metal is cut and bent into a form to conform to the desired circumference of column, except that the metal form is one inch smaller in diameter, which is for the Yi' plaster coating or stucco over metal. To hold the sheet metal form rigid while applying the stucco, a board is cut the exact width of the diameter, inside the column. This is inserted into the metal form and other strips added upon each side to aid in holding the metal symmetrical and rigid. The metal form is now plastered with a cement mortar of one part Portland cement, Y% part hydrated lime, and three to four parts of fine screened sand. This makes a plastic mortar that can be easily plastered upon the metal lath to a depth of one-half inch or more over the surface. The stucco is finished as smooth as possible, and where any imperfections occur from the handling of the trowel, they may be removed when the concrete has set or hardened, by rubbing the surface with a Carborundum stone. The wood strips inside the metal form are removed as soon as the concrete is sufficiently hard, thus leaving the work a reenforced plaster or concrete shell of the column. This is easily moved and set into position, where it is filled with a mixture of leaner concrete, using the proportion of 1: 2: 4 or 1::5, cement, sand and broken stone or coarse gravel. This should be mixed well and not made too wet, to soak through and possibly stain the concrete upon surface of the column; the space inside plaster shell is filled with this mixture, thus making a solid concrete column, amply reenforced and one that will easily withstand any reasonable loading you wish to place upon same. The capital may be molded in...show more

Product details

  • Paperback | 30 pages
  • 189 x 246 x 2mm | 73g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 123696988X
  • 9781236969880