Masonry Magazine October 1985 Page. 35
Architecture Students Tour Indiana
Brick Plant and Stone Quarry
Students of architecture from the University of Notre Dame and Ball State University toured the Glen-Gery Brick Co. plant in Brazil, Ind., and the Independent Stone Quarry & Mill in Bloomington. Ind., to study first-hand the processes of brick manufacturing and stone cutting and fabrication. The tours were sponsored by the Masonry Institutes of Illinois and Indiana as part of their continuing education programs.
Thomas Jefferson Was Right About
the Energy Efficiency of Brick
Thomas Jefferson knew a lot about many things, and he was right on target when he said in his Notes on Virginia that "these (brick) houses have the advantage... of being warmer in winter and cooler in summer than those of wood.
A paper presented at the December, 1983 annual meeting of the American Society for Testing & Materials (ASTM) says that brick masonry homes use significantly less energy on the average than wood frame homes-approximately 22% less.
The paper, entitled "Nonparametric Tests of Energy Consumption in Brick and Frame Residences," was taken from a study by the same name conducted at the University of Utah in 1982 by Professors Richard Turley and William Kennedy, and graduate student Justin Dituri.
The study was a random statistical survey of 964 all-electric homes in the Salt Lake City area and tested the hypothesis that "masonry materials have physical characteristics of heat storage. Thus, exposure to sunlight in the day during the heating season provides some heat release after sundown, supplementing and reducing the use of heating fuels."
The study concluded that a consumer who lives in the 1,300-1,599 sq. ft. category of house size using an average amount of energy would save approximately $25 per month or $150 over the six-month heating period (based on 1982 rates) by living in a brick home.
Don't Use Acid to Clean Marble
Installations, Says Marble Institute
The popularity of polished marble tile has risen at an astounding rate. That's the good news.
The bad news is that crews who have had no prior experience with the material are now installing large marble-tiled areas. Although many of these installations are successful, as many or more have been ruined because of a simple mistake: Acid was used for final cleaning of the surface. Acid, in any form-muriatic, sulfamic, even vinegar, and in any dilution, etches and destroys a polished marble finish, says the Marble Institute of America.
Marble and travertine are formed by forces of nature from limestone. Limestone is alkaline. Acid breaks down limestone.
Cement residue should also be promptly cleaned from the face of polished marble. It, too, burns the surface. Potable, non-acidic water should be used to wash marble. Rinse and wipe thoroughly. Change the water frequently so that the dirt and diluted cement picked up is not put back down.
Why are we seeing more marble floors now than ever before? The industry grew at an average rate of 25% yearly from 1980 to 1983. Full year 1984 was 72% more than 1983. The Marble Institute expects growth to continue into the 1990s at least.
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MASONRY-SEPTEMBER/OCTOBER, 1985 31