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A slurry wall is a civil engineering technique used to build reinforced concrete walls in areas of soft earth close to open water, or with a high groundwater table. [1] This technique is typically used to build diaphragm (water-blocking) walls surrounding tunnels and open cuts, and to lay foundations. Slurry walls are used at Superfund sites to ...
The solution employed by Yamasaki and his team of engineers was to use a slurry wall; digging very narrow trenches about 3 feet (0.91 m) wide and then filling these with a slurry (a mixture of clay and water) that was dense enough to keep the surrounding water out. Pipes were then lowered into the slurry trench and concrete was pumped in.
The oldest method, known as the a massello technique, involves cutting the wall and removing a considerable part of it together with both layers of plaster and the fresco painting itself. The stacco technique, on the other hand, involves removing only the preparatory layer of plaster, called the arriccio together with the painted surface.
When the trench was dug out, a steel cage was inserted and concrete was poured in, forcing the slurry out. The slurry method was devised by Port Authority chief engineer John M. Kyle Jr. Towards the end of 1966, work began on building the slurry wall, led by Montreal-based Icanda, a subsidiary of an Italian engineering firm, Impresa Costruzioni ...
External render. An external render is, in its most basic form, a coating applied to the walls of a building, to provide a protective coating which would prevent rain penetration. It also acts as a decorative finish to enhance the appearance of a building.
Detachment of wall paintings. The detachment of wall paintings involves the removal of a wall painting from the structure of which it formed part. While detachment was once a common practice, the preservation of art in situ is now preferred, and detachment is now largely restricted to cases where the only alternative is total loss. [1]
A road being resurfaced using a road roller. Red surfacing for a bicycle lane in the Netherlands. Construction crew laying down asphalt over fiber-optic trench, in New York City. A road surface (British English) or pavement (North American English) is the durable surface material laid down on an area intended to sustain vehicular or foot ...
Lining of paintings. The lining of paintings is a process of conservation science and art restoration used to strengthen, flatten or consolidate oil or tempera paintings on canvas by attaching a new support to the back of the existing one. The process is sometimes referred to as relining.