Word: cement
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...working class," they seized half a dozen buses and proceeded to the Zócalo, Mexico City's central square, currently being repaved. There the students demonstrated their proletarian solidarity: they played dodge-'em, bump-'em, hot-rodding the buses back and forth through wet cement, hooting, hollering, colliding...
...CEMENT was known in ancient Crete; both Romans and Phoenicians used concrete. The shell as a form has fascinated man since he first learned to crack an egg. But it was not until mid-19th century engineers first reinforced concrete with iron ribs that concrete-shell construction suddenly opened up an exciting array of new architectural solutions to the age-old problem of providing shelter that is both economical and sound. Today, after decades of experiment and mathematical computation, concrete-shell constructions are at last coming into their...
...cement shell went up. The interior pieces were returned and artisans began a careful job of restoration. Damaged pieces were repaired, regilded where necessary, and, to match the old tints, rubbed by hand until the dull undercoating peeked artistically through. Then they were set into place again, using the 1830 numbers. Cost: more than...
...Rockefeller brothers' Ibec Housing Corp. announced that it will undertake worldwide production and marketing of a simple machine that promises much for the homeless millions. Called the Cinva-Ram Block Press, it makes sturdy brick from a down-to-earth mixture of 90-95% dirt and 5-10% cement or other binding admixtures, such as lime or animal dung...
Resembling an old-fashioned hand printing press, the machine can be operated by two men, one of whom pours in the soil-cement mixture while the other pumps the long handle to press the brick into shape at a pressure of about 10,000 lbs. per sq. in. In two days it can turn out enough brick to build a hut-sized house, is light enough (140 lbs.) to be packed by mule to backwoods villages, inexpensive enough to serve even the most. depressed areas. The machine costs about $50 to produce, makes rock-hard bricks for less than...