Concrete Mixing & Placement
Concrete mix and pour operations pose
significant possible hazards to employees. This
chapter sets forth safety requirements and hazard control
for these operations.
It is the policy of [COMPANY] that all
concrete pour operations be conducted under the direct
supervision of a competent supervisor. This includes
an on site pre-safety brief, inspection of forms, bracing
Ensure all equipment is routinely
serviced and maintained in a safe condition
Conduct periodic on-site inspection of
Provide operation and safety training
for affected employees
Ensure access to operation areas are
Provide continuous operation safety
observation and control
Provide immediate corrective training
for all unsafe acts
Conduct pre-pour inspections
& pinch points
Inspections and audits
Concrete mix preparation to
the design and specific strength required.
Proper moisture content
according to the design specifications.
Sampling from each batch, or
as required by the engineer’s specifications.
Assignment and use of
Formwork shall be
designed, fabricated, erected, supported, braced and
maintained so that it will be capable of supporting without
failure all vertical and lateral loads that may reasonably
be anticipated to be applied to the formwork.
Drawings or plans,
including all revisions, for the jack layout, formwork
(including shoring equipment), working decks, and scaffolds,
shall be available at the jobsite.
equipment (including equipment used in reshoring operations)
shall be inspected prior to erection to determine that the
equipment meets the requirements specified in the formwork
found to be damaged such that its strength is reduced shall
not be used for shoring.
equipment shall be inspected immediately prior to, during,
and immediately after concrete placement.
that is found to be damaged or weakened after erection, such
that its strength is reduced to less than that required by
1926.703(a)(1), shall be immediately reinforced.
The sills for
shoring shall be sound, rigid, and capable of carrying the
maximum intended load.
All base plates,
shore heads, extension devices, and adjustment screws shall
be in firm contact, and secured when necessary, with the
foundation and the form.
Eccentric loads on
shore heads and similar members shall be prohibited unless
these members have been designed for such loading.
post shores are used one on top of another (tiered), the
employer shall comply with the following specific
requirements in addition to the general requirements for
The design of the
shoring shall be prepared by a qualified designer and the
erected shoring shall be inspected by an engineer qualified
in structural design.
The single post
shores shall be vertically aligned.
The single post
shores shall be spliced to prevent misalignment.
The single post
shores shall be a adequately braced in two mutually
perpendicular directions at the splice level. Each tier
shall also be diagonally braced in the same two directions.
single post shores to raise formwork shall not be made after
the placement of concrete.
Reshoring shall be
erected, as the original forms and shores are removed,
whenever the concrete is required to support loads in excess
of its capacity.
Vertical slip forms
rods or pipes on which jacks climb or by which the forms are
lifted shall be:
designed for that purpose; and
where not encased in concrete.
Forms shall be
designed to prevent excessive distortion of the structure
during the jacking operation.
All vertical slip
forms shall be provided with scaffolds or work platforms
where employees are required to work or pass.
Jacks and vertical
supports shall be positioned in such a manner that the loads
do not exceed the rated
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