['Specialized Industries']
['Concrete/Masonry Construction']
09/20/2024
Copyright 2024 J. J. Keller & Associate, Inc. For re-use options please contact copyright@jjkeller.com or call 800-558-5011.
...
OSHA’s standard for concrete and masonry construction sets minimum requirements to protect construction workers from accidents and injuries resulting from the:
- Premature removal of formwork,
- Failure to brace masonry walls,
- Failure to support precast panels,
- Inadvertent operation of equipment, and
- Failure to guard reinforcing steel.
The requirements are designed to help protect all construction workers from the hazards associated with concrete and masonry construction operations at construction, demolition, alteration, or repair worksites.
Scope
OSHA’s standard for concrete and masonry construction applies to any employer performing construction activities dealing with concrete and masonry construction.
Regulatory citations
- 29 CFR 1926 Subpart Q — Concrete and Masonry Construction
Key definitions
- Bull float: A tool used to spread out and smooth concrete.
- Formwork: The total system of support for freshly placed or partially cured concrete, including the mold or sheeting (form) that is in contact with the concrete as well as all supporting members including shores, re-shores, hardware, braces, and related hardware.
- Jacking operation: The task of lifting a slab (or group of slabs vertically from one location to another (e.g., from the casting location to a temporary (parked) location, or from a temporary location to another temporary location, or to its final location in the structure), during the construction of a building/structure where the lift-slab process is being used.
- Lift slab: A method of concrete construction in which floor, and roof slabs are cast on or at ground level and, using jacks, lifted into position.
- Limited access zone: An area alongside a masonry wall, which is under construction, and which is clearly demarcated to limit access by employees.
- Precast concrete: Concrete members (such as walls, panels, slabs, columns, and beams) which have been formed, cast, and cured prior to final placement in a structure.
- Reshoring: The construction operation in which shoring equipment (also called reshores or reshoring equipment) is placed, as the original forms and shores are removed, in order to support partially cured concrete and construction loads.
- Shore: A supporting member that resists a compressive force imposed by a load.
- Vertical slip forms: Forms which are jacked vertically during the placement of concrete.
Summary of requirements
In general, the standard requires covered employers to:
- Ensure construction loads are only placed on a concrete structure where the employer has determined, based on information received from a person who is qualified in structural design, that the structure or portion of the structure is capable of supporting the intended loads.
- Guard all protruding reinforcing steel onto and into which employees could fall, to eliminate the hazard of impalement.
- Prohibit employees (except those essential to the post-tensioning operations) from being behind the jack during tensioning operations.
- Erect signs and barriers to limit employee access to the post-tensioning area during tensioning operations.
- Ensure concrete buckets are not used to move employees.
- Prohibit employees from working under concrete buckets while the buckets are being elevated or lowered into position.
- Require employees to wear protective head and face equipment when applying a cement, sand, and water mixture through a pneumatic hose.
- Follow the requirements for equipment, tools, and operations.
['Specialized Industries']
['Concrete/Masonry Construction']