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2. Cellular floor raceways - Wikipedia

   en.wikipedia.org/wiki/Cellular_floor_raceways

   Cellular floor raceways are electrical wiring ducts or cells made from steel floor deck that serve as structural formwork for placement of concrete floor slabs and also as wire and cable raceways within the concrete floor slab.

3. Concrete grinder - Wikipedia

   en.wikipedia.org/wiki/Concrete_grinder

   A concrete grinder is an abrasive machine for grinding and polishing concrete and natural stone. Concrete grinders can come in many configurations, the most common being a hand-held general purpose angle grinder, but it may be a specialized tool for countertops or floors. Angle grinders are small and mobile, and allow one to work on harder to ...

4. Wheel tractor-scraper - Wikipedia

   en.wikipedia.org/wiki/Wheel_tractor-scraper

   Elevating scraper: self-loading as it uses an elevator to load material; requires no push-cat. Tandem scrapers: separate tractor and scraper engines provide greater power, and better traction in steep or slippery areas; Tandem Push-Pull: concentrates the combined horsepower of two such machines onto one cutting edge.

5. Index of construction articles - Wikipedia

   en.wikipedia.org/wiki/Index_of_construction_articles

   Early skyscrapers - Earthbag construction - Earthquake engineering - Earthquake-resistant structures - Earthquake simulation - Eco-cement - Egyptian pyramid construction techniques - Electrical engineer - Electrical wiring - Electrician - Electric resistance welding - Elemental cost planning - Elevator mechanic - Encasement - Encaustic tile ...

6. Hand scraper - Wikipedia

   en.wikipedia.org/wiki/Hand_scraper

   The scraper in the center of the image is a three corner scraper and is typically used to deburr holes or the internal surface of bush-type bearings. Bushes are typically made from bronze or a white metal. The scraper pictured at the bottom is a curved scraper. It has a slight curve in its profile and is also suitable for bush bearings ...

7. Earthworks (engineering) - Wikipedia

   en.wikipedia.org/wiki/Earthworks_(engineering)

   Earthwork construction was revolutionized by the development of the scraper and other earth-moving machines such as the loader, the dump truck, the grader, the bulldozer, the backhoe, and the dragline excavator.