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The screed moves back and forth, as friction screeds or "roller" screeds level the concrete, filling holes and lowering any high spots. [1] Power screeds can be powered by gas, electricity or hydraulics. [citation needed] In concrete, prior to the mix drying, the concrete should be smoothed out on the desired surface.
The screed on this paver spreads and smooths the asphalt.. Screed has three meanings in building construction: . A flat board (screed board, floating screed) or a purpose-made aluminium tool used to smooth and to "true" materials like concrete, stucco and plaster after they have been placed on a surface or to assist in flattening; [1]
Adjusting screed settings will change the placement depth and width, as well as amount of material being placed. Many modern screeds can be run in an automatic mode, too. [1] Because the only connection between the asphalt paver and the screed is the tow arm, the screed can "float" vertically relative to the paver.
In surveying and construction, the laser level is a control tool consisting of a rotating laser beam projector that can be affixed to a tripod. The tool is leveled according to the accuracy of the device and projects a fixed red or green beam in a plane about the horizontal and/or vertical axis.
Saddle roof - Salt-concrete - Saltillo tile - Sander - Sandhog - Sandjacking - Sandwich panel - Sarking - Saw-tooth roof - Sawyer - Scabbling - Scaffolding - Schmidt hammer - Screed - Screw piles - Scrim and sarking - Sediment control - Segregation in concrete - Self-build - Self-cleaning floor - Self-consolidating concrete - Self-framing metal ...
Granolithic screed, also known as granolithic paving [1] and granolithic concrete, [2] is a type of construction material composed of cement and fine aggregate such as granite or other hard-wearing rock. [3] It is generally used as flooring, or as paving (such as for sidewalks).