Presses
CEB had very limited use prior to the 1980s. It was known in the 1950s in South America, where the Cinva Ram was developed by Raul Ramirez in the Inter-American Housing Center (CINVA) in Bogota, Colombia. The Cinva Ram is a lever-action, manual press that makes one block at a time.
U.S. manufacturers produce much larger machines that run with diesel or gasoline engines and hydraulic presses that receive the soil/aggregate mixture through a hopper. This is fed into a chamber to create a block that is then ejected onto a conveyor.
During the 1980s, soil-pressing technology became widespread. France, England, Germany and Switzerland began to write standards. The Peace Corps, USAID, Habitat for Humanity and other programs began to implement it into housing projects.
Read more about this topic: Compressed Earth Block
Famous quotes containing the word presses:
“Gratitude is a fickle thing, indeed. A person taking aim presses the weapon to his chest and cheek, but when he hits, he discards it with indifference.”
—Franz Grillparzer (1791–1872)
“Peer pressure is not a monolithic force that presses adolescents into the same mold. . . . Adolescents generally choose friend whose values, attitudes, tastes, and families are similar to their own. In short, good kids rarely go bad because of their friends.”
—Laurence Steinberg (20th century)
“I would forget it fain,
But O, it presses to my memory
Like damnèd guilty deeds to sinners’ minds.”
—William Shakespeare (1564–1616)