SIC 1771 Concrete Work
SIC 1771
Special trade contractors primarily engaged in concrete work, including portland cement and asphalt. This industry includes the construction of private driveways and walks of all materials. Concrete work incidental to the construction of foundations and concrete work included in an excavation contract are classified in SIC 1794: Excavation Work; and those engaged in construction or paving of streets, highways, and public sidewalks are classified in SIC 1611: Highway and Street Construction, Except Elevated Highways.
235420
Drywall, Plastering, Acoustical and Insulation Contractors
235710
Concrete Contractors
Concrete—a mixture of portland cement, sand, gravel, and water—is used for the construction of everything from patios and floors to dams and highways. Special trade contractors involved in concrete work provide the following products and services: private asphalt parking areas; blacktop work; concrete work for private driveways, sidewalks, and parking lots; culvert construction; curb construction; pouring concrete to build foundations; grouting work; parking lot construction; patio construction; sidewalk construction, except public; and stucco construction.
The most recent U.S. Census Bureau reports indicated that more than 30,000 establishments are involved in concrete contracting. These companies employed 190,000 cement masons, concrete finishers, and terrazzo workers in 2002, according the U.S. Bureau of Labor Statistics. Portland cement consumption declined in the Northeastern and Mountain states in 2001, due in large part to the economic recession—exacerbated by the September 11 terrorist attacks— which prompted a slowdown in commercial and industrial construction and transportation expenditures. Compared to a 5 percent growth rate in 1999, portland cement consumption grew by only 0.2 percent in 2001. However, consumption was expected to grow 1.4 percent in 2002 as every region of the United States saw gains.
The construction industry can be divided into three segments: general building contractors, heavy construction contractors, and special trade contractors, which includes those engaged in concrete work. General building contractors build residential, industrial, commercial, and other buildings, while heavy construction contractors build structures such as roads, highways, and bridges. Special trade contractors usually focus on one trade and work under the direction of general contractors, architects, or property owners. Beyond completing their work to specification, special trade contractors have no responsibility for building the structure in its entirety.
Concrete can be classified by the type of aggregate or cement used, by specific characteristics, or by production methods. Ordinary structural concrete is characterized by its water-to-cement ratio. The lower the water content, all else being equal, the stronger the concrete...
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- Construction Industries
- SIC 1521 General Contractors—Single-Family Houses
- SIC 1522 General Contractors—Residential Buildings, Other Than Single-Family
- SIC 1531 Operative Builders
- SIC 1541 General Contractors—Industrial Buildings and Warehouses
- SIC 1542 General Contractors—Nonresidential Buildings, Other Than Industrial Buildings and Warehouses
- SIC 1611 Highway and Street Construction
- SIC 1622 Bridge, Tunnel, and Elevated Highway Construction
- SIC 1623 Water, Sewer, and Utility Lines
- SIC 1629 Heavy Construction, Not Elsewhere Classified
- SIC 1711 Plumbing, Heating, and Air Conditioning
- SIC 1721 Painting and Paper Hanging
- SIC 1731 Electrical Work
- SIC 1741 Masonry, Stone Setting, and Other Stone Work
- SIC 1742 Plastering, Drywall, Acoustical, and Insulation
- SIC 1743 Terrazzo, Tile, Marble, and Mosaic Work
- SIC 1751 Carpentry Work
- SIC 1752 Floor Laying and Other Floor Work, Not Elsewhere Classified
- SIC 1761 Roofing, Siding, and Sheet Metal Work
- SIC 1771 Concrete Work
- SIC 1781 Water Well Drilling
- SIC 1791 Structural Steel Erection
- SIC 1793 Glass and Glazing Work
- SIC 1794 Excavation Work
- SIC 1795 Wrecking and Demolition Work
- SIC 1796 Installation or Erection of Building Equipment, Not Elsewhere Classified
- SIC 1799 Special Trade Contractors, Not Elsewhere Classified
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