A Job Hazard Analysis (JHA) for concrete placement should address several key safety aspects. Here's a breakdown of what to consider:

1. Formwork and Shoring:

• Ensure formwork and shoring are designed by an engineer and erected according to the engineer's design drawings [1].
• The design should identify components, materials, sizes, grades, and specifications [2].
• It should also specify design loads, bracing, and external ties to support these loads [2].
• Attachment points for rigging and hoisting should be clearly indicated if the formwork is moved as a unit [2].
• Erection instructions from the manufacturer or engineer must be followed [2].
• The method, sequence, and rate of pouring concrete should be detailed [2].
• The design drawings must be kept on-site and available for inspection 1, 3.
• Before pouring, formwork and shoring must be inspected by an engineer or competent person, who must authorize the pour in writing [3]. This authorization should also be kept on-site [3].
• Formwork should be capable of supporting all anticipated vertical and lateral loads without failure [4].
• Shoring equipment should be inspected before erection to ensure it meets drawing specifications [4]. Damaged shoring equipment must not be used [4].
• Erected shoring equipment should be inspected before, during, and after concrete placement and immediately reinforced if weakened [4].
• Sills for shoring must be sound, rigid, and able to carry the maximum intended load [4].
• Base plates, shore heads, extension devices, and adjustment screws should be in firm contact with the foundation and form [4].
• Eccentric loads on shore heads should be avoided unless the members are designed for such loading [4].

2. Pouring and Placement:

• No employee should work under concrete buckets while they are being elevated or lowered [5].
• Elevated concrete buckets should be routed to minimize employee exposure to hazards [5].
• Ensure concrete pumps and placing booms are installed, erected, inspected, operated, and maintained according to standards such as CSA Z151-09 [1].

3. Reinforcing Steel:

• Protruding reinforcing steel must be guarded to eliminate impalement hazards [6].
• Reinforcing steel for vertical structures must be adequately supported to prevent overturning and collapse [7].

4. Personal Protective Equipment (PPE):

• Employees applying cement, sand, and water mixtures through a pneumatic hose must wear appropriate head and face protection [5].
• High-visibility safety apparel should be provided to employees exposed to vehicular traffic or powered mobile equipment [8].

5. General Safety:

• Any object protruding from concrete that may endanger employees should be removed or protected [2].
• Unstable walls made of brick, concrete blocks, or similar materials must be adequately braced until attached to a rigid structure [9].
• Construction loads should not be placed on a concrete structure unless a qualified person determines it can support the loads [6].
• Routes for suspended loads should be preplanned to avoid employees working directly below them, except for those engaged in initial connection or hooking/unhooking [10].

6. Equipment and Tools:

• Concrete mixers with large loading skips must have a mechanical device to clear the skip and guardrails on each side [5].
• Power concrete trowels should have a control switch that automatically shuts off power when the operator's hands are removed [5].
• Concrete buggy handles should not extend beyond the wheels [5].

7. Formwork Removal:

• Forms and shores should not be removed until the concrete has gained sufficient strength to support its weight and any superimposed loads, based on stipulated conditions or proper testing [7].
• Reshoring should not be removed until the concrete has attained adequate strength to support its weight and all loads upon it [7].

8. Lockout/Tagout:

• Maintenance or repair on equipment like compressors, mixers, or pumps should only be performed with hazardous energy sources locked out and tagged [11].

9. Traffic Safety:

• Construction on highways or bridges should have concrete barriers or equivalent protection, along with lane control devices and flashing lights [8].

10. Definitions:

• Ensure you understand key terms such as "formwork," "shoring," "reshoring," and the roles of a "competent person" and "qualified person" 4, 8.

By addressing these points in your JHA, you can create a safer environment for concrete placement activities.