Concrete Accessories AHA (Activity Hazard Analysis / Job Hazard Analysis)
Updated 2026-06-23
A Concrete Accessories AHA (Activity Hazard Analysis / Job Hazard Analysis) is the plan that keeps the crew installing concrete accessories safe in the embed and anchor installation, through the waterstop and form- accessory handling, and during the post-installed anchor drilling and silica. Concrete accessories installs the embeds, anchors, waterstops, and hardware for concrete work — combining the embed-and-anchor-installation and struck-by hazard, the waterstop and form-accessory-handling hazard, and the post-installed-anchor-drilling and silica hazard. This guide walks through building a Concrete Accessories AHA that names the embed-and-anchor/ struck-by, waterstop/form-accessory-handling, and post-installed-anchor-drilling/silica hazards and assigns the embed, accessory, and drilling controls that hold up in the field.
Why concrete accessories needs its own AHA
Concrete accessories are the embedded and attached items used in concrete construction — anchor bolts, embeds, embed plates, inserts, waterstops, dovetail slots, form ties, chamfer strips, chairs/spacers, and post-installed anchors — installed in the formwork before the pour (cast-in) or drilled into cured concrete afterward (post-installed). The defining feature is the variety of small installation tasks: setting cast-in embeds and anchors accurately (with struck-by and handling hazards), installing waterstops and form accessories, and — a notable one — drilling into cured concrete for post-installed anchors (a silica hazard). The hazards combine the embed-and-anchor-installation and struck-by (installing/setting the cast-in embeds, anchor bolts, and embed plates in the formwork — the material-handling (heavy embed plates/anchor assemblies), struck-by, and securing hazards), the waterstop and form-accessory-handling (installing waterstops, form ties, chamfer, inserts, chairs — the handling, cutting, and pinch hazards of the various accessories), the post-installed-anchor-drilling and silica (drilling into cured concrete for post-installed anchors — the respirable silica dust from drilling concrete, plus the drilling and anchor-setting (adhesive) hazards), and the ergonomic. The embed-and-anchor/ struck-by and the post-installed-anchor-drilling/silica justify a dedicated AHA.
Breaking concrete accessories into steps
The steps for a Concrete Accessories AHA follow the work:
- Install the cast-in embeds and anchors in the formwork
- Install the waterstops and form accessories
- Secure the accessories for the pour
- Drill for post-installed anchors (silica control) after cure
- Set the post-installed anchors (adhesive/mechanical)
- Manage the struck-by, handling, and silica hazards
- Verify the accessory installation
- Complete
Each step carries a hazard, and the embed-and-anchor/struck-by, the waterstop/form-accessory-handling, and the post-installed-anchor-drilling/silica are where the most significant risks concentrate.
The hazards step by step
Embed-and-anchor-installation and struck-by
Installing/setting the cast-in embeds, anchor bolts, and embed plates in the formwork — the material-handling (heavy embed plates/anchor assemblies), struck-by, and securing hazards. The controls are safe handling of the embeds/anchors/plates (heavy embed assemblies — mechanical assistance, team lifts), securing them properly in the formwork (so they stay positioned during the pour — a loose embed can shift or be a struck-by hazard), struck-by awareness, and the embed/struck-by controls. The embed-and-anchor/struck-by is a defining hazard — heavy embeds and anchors carry handling and struck-by hazards. (These follow the embed-installation fundamentals.)
Waterstop and form-accessory-handling
Installing waterstops, form ties, chamfer, inserts, chairs — the handling, cutting, and pinch hazards of the various accessories. The controls are safe handling and installation of the accessories (waterstops, ties, chamfer, chairs), safe cutting where accessories are cut to fit (tool/knife safety), pinch-point awareness, and the accessory-handling controls. The waterstop/form-accessory-handling is a defining hazard. (These follow the accessory-handling fundamentals.)
Post-installed-anchor-drilling and silica
Drilling into cured concrete for post-installed anchors — the respirable silica dust from drilling concrete, plus the drilling and anchor-setting (adhesive) hazards. The controls are silica-dust control when drilling concrete (dust-collection/HEPA on the drill or wet drilling, respiratory protection — drilling concrete generates respirable silica), safe drilling (the rotary hammer, embedded-reinforcement awareness), safe adhesive-anchor setting (adhesive chemical hazards, proper hole cleaning/installation), and the drilling/silica controls. The post-installed-anchor-drilling/silica is a defining hazard — drilling concrete for anchors generates respirable silica. (These follow the silica and anchor-drilling fundamentals.)
Ergonomic
The ergonomic (repetitive accessory installation, drilling overhead) carries the ergonomic hazard. The controls are managing the ergonomics (repetitive work, overhead drilling), and the ergonomic controls. (These follow the ergonomic fundamentals.)
A simple Concrete Accessories AHA structure
| Step | Hazard | Control | Standard |
|---|---|---|---|
| Install embeds | Handling / struck-by | Install cast-in embeds/anchors, secure in formwork | project |
| Install accessories | Handling / pinch | Install waterstops and form accessories | project |
| Secure | Shifting | Secure the accessories for the pour | project |
| Drill (post-installed) | Silica | Drill for anchors with silica control | OSHA 1926.1153 |
| Set anchors | Chemical | Set post-installed anchors (adhesive/mechanical) | project |
| Verify | Misplacement | Verify the accessory installation | project |
Embed-handling safety and post-installed-drilling silica control
A Concrete Accessories AHA centers on embed-handling safety and post-installed-drilling silica control. The embed-handling safety addresses setting the cast-in embeds and anchors — controlled by safe handling of the heavy embeds/anchors/plates, securing them properly in the formwork so they stay positioned during the pour, and struck-by awareness. The post-installed-drilling silica control addresses drilling into cured concrete — controlled by silica-dust control when drilling concrete (dust-collection/HEPA or wet drilling, respiratory protection), safe drilling (embedded-reinforcement awareness), and safe adhesive-anchor setting. And the various accessories get handling and the ergonomics get managed. An AHA built on embed-handling safety and post-installed- drilling silica control, with accessory-handling controls, addresses the hazards that define concrete accessories.
From the field: what actually goes wrong
In fourteen years across federal, heavy civil, and industrial projects, concrete accessories covers the wide range of embedded and attached items in concrete work, and while many of the tasks are small, two hazards stand out: handling and securing the cast-in embeds and anchors, and drilling into cured concrete for post-installed anchors. The embed-and-anchor-installation and struck-by hazard is a primary defining concern — installing the cast-in embeds, anchor bolts, and embed plates in the formwork involves handling items that can be heavy (large embed plates and anchor-bolt assemblies), so safe handling (mechanical assistance and team lifts for the heavy ones) is a control, and — importantly — securing the embeds and anchors properly in the formwork so they stay positioned during the pour, because a loosely-secured embed can shift during the pour (a quality failure) or come loose and be a struck-by hazard. Setting embeds accurately and securely is the core of the cast-in work.
The post-installed-anchor-drilling/silica and the waterstop/form-accessory-handling are the other defining hazards. On the projects I have run, a very common concrete-accessory task is installing post-installed anchors — drilling into cured concrete and setting an anchor (mechanical or adhesive) — and drilling into concrete generates respirable crystalline silica, so silica-dust control (dust-collection or HEPA shrouds on the rotary hammer drill, or wet drilling, plus respiratory protection) is the key control, along with safe drilling (awareness of embedded reinforcement that the drilling might hit) and safe adhesive-anchor setting (the adhesive has chemical hazards, and proper hole cleaning and installation are needed for the anchor to hold). Drilling for post-installed anchors is a routine but real silica source, so the drill dust controls matter. And the waterstop/form-accessory- handling hazard is the variety of accessories (waterstops, form ties, chamfer strips, inserts, chairs and spacers) that are handled, cut to fit (knife and tool hazards), and installed, with pinch points. The ergonomics of repetitive installation and overhead drilling round it out. The AHA built on embed-handling safety and post-installed-drilling silica control is the one that protects the accessories crew.
The bottom line
A Concrete Accessories AHA names the embed-and-anchor/struck-by, the waterstop/form-accessory-handling, and the post-installed-anchor-drilling/silica hazards with specific controls — safe handling and secure setting of the cast-in embeds and anchors (a loose embed shifts or becomes a struck-by hazard), safe handling and cutting of the various form accessories, and silica-dust control when drilling cured concrete for post-installed anchors. The embed-handling safety and the post-installed-drilling silica control are the defining concerns. The AHA that manages both is the one that protects the crew.
Frequently asked questions
Why must cast-in embeds be securely set?
Installing the cast-in embeds, anchor bolts, and embed plates involves handling items that can be heavy (large embed plates and anchor-bolt assemblies), and they must be secured properly in the formwork so they stay positioned during the pour — because a loosely-secured embed can shift during the pour (a quality failure) or come loose and be a struck-by hazard. Controls are safe handling of the embeds/anchors/plates (mechanical assistance, team lifts), securing them properly in the formwork, struck-by awareness, and the embed/struck-by controls.
Why is drilling for post-installed anchors a silica hazard?
A common concrete-accessory task is installing post-installed anchors — drilling into cured concrete and setting an anchor — and drilling into concrete generates respirable crystalline silica, a routine but real silica source. Controls are silica-dust control when drilling concrete (dust-collection/HEPA on the drill or wet drilling, respiratory protection), safe drilling (the rotary hammer, embedded-reinforcement awareness), safe adhesive-anchor setting (adhesive chemical hazards, proper hole cleaning/installation), and the drilling/silica controls.
What accessory-handling hazards apply?
The variety of accessories (waterstops, form ties, chamfer strips, inserts, chairs and spacers) are handled, cut to fit (knife and tool hazards), and installed, with pinch points. Controls are safe handling and installation of the accessories, safe cutting where accessories are cut to fit (tool/knife safety), pinch-point awareness, and the accessory-handling controls.
What are concrete accessories?
Concrete accessories are the embedded and attached items used in concrete construction — anchor bolts, embeds, embed plates, inserts, waterstops, dovetail slots, form ties, chamfer strips, chairs/spacers, and post-installed anchors — installed in the formwork before the pour (cast-in) or drilled into cured concrete afterward (post-installed). Because setting cast-in embeds involves handling/struck-by hazards, the accessories are handled and cut, and drilling for post-installed anchors generates silica, those hazards apply.
Related AHAs and JHAs
- Concrete Forming AHA — the concrete-forming fundamentals
- Concrete Construction Joints AHA — the related construction joints
- Embedded Plate Installation JHA — the embed-plate fundamentals
- Rebar Installation JHA — related reinforcement and accessory work
Written by Mustafa Tok, CSP, ASP, CHST — OSHA Authorized Outreach Trainer with 14+ years of international construction safety experience across federal, heavy civil, and industrial projects.