39. Pouring Concrete
Installing concrete is a challenging job and every concrete pour is different. Size, shape, color, finish and complexity of a project all have to be considered when pouring concrete.
Concrete construction accidents can happen in many different ways. When working on or around concrete, you need to be continually vigilant to ensure you work as safely as possible. Some common mishaps that can cause concrete construction accidents include:
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- Workers falling onto concrete slabs.
- Workers being crushed by slabs falling from cranes or forklifts.
- Workers getting pinned between concrete slabs.
- Workers suffering heatstroke while cleaning truck mixer drums.
- Workers being impaled on rebar sticking out of concrete slabs.
- Workers getting caught in concrete mixers or covered with concrete.
- Workers being burned or blinded by concrete chemicals.
- Workers suffering back injuries from lifting heavy concrete slabs.
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| Hazard Category | Hazards | Controls |
| Electrocution | 1. Can occur use of improper power tools or wet condition in work place | 1. All power cables must be kept good condition after use.
2. Don’t allowed any cables laying in a wet floors 3. Barricade the site for restriction of person to curing as well as wet floor. 4. Tools and equipment are to be returned to the relevant store or container after used. |
| Vehicle accident | 1. Can occur over speed driving at the site
2. During Transporting the load at the site |
1. Observe speed limit and practice defensive driving techniques.
2. Suspend transportation until conditions improve from poor visibility, fog, and smoke, etc. 3. Use qualified flag man 4. Vehicle or equipment shall be provided with back tracking alarm to alert personnnel on site. |
| Falls of Personnel or Object | 1. Can occur a fall from height place without use of PPE
2. Can occur a falling object from plat forms 3. Fallen object during scaffold dismantling |
1. Ensure all tools tied up with lanyard or use tools bags or bucket
2. Barricade the working area 3. Fall protection is mandatory to all workers 4. Working plat forms must be equipped with complete floors, guard rails, and toe boards |
| Eye and Hand Injury | 1. Can occur flying particles during bolt installation
2. Hand iinjury from pinch point and sharp objects |
1. Perovide proper access and egress to the working area
2. Ensure the access is free from any obstruction 3. To avid injury tha tmight happen during fall of materials an adequate PPE is necessary for the task 4. Cap all pointed rebar around the area 5. Keep the area free from obstruction 6. Arrange all materials properly
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| Sips, Trips, and Falls | 1. Cause by pool housekeeping
2. Inadequate storage of materials |
1. Ongoing at all times as you work the area shall be cleaned and unwanted materials to be remove
2. Tools and equipment are to be returned to the relevant store or container after used. 3. Materials not in used should be return to staging area for safe keeping |
위에 언급되진 않았지만, 붕괴가 있습니다.
구조물을 콘크리트 타설할 때에 붕괴로 인하여 대형사고가 발생되는 일이 있었습니다.
이를 방지하기 위하여 충분한 구조검토 및 거푸집동바리 등의 점검이 이뤄져야 합니다.
공사를 하다보면 일부 거푸집이 터지는 일은 종종 발생되는 상황이나,
거푸집의 하부, 즉 콘크리트공이 올라서서 작업하는 Slab 등이 붕괴되지 않도록
거푸집 및 거푸집동바리설치작업시에 조립상태/거푸집 자재 품질상태 등 점검표에 따른 동시 점검이 필요합니다
또한,
펌프카!!!
펌프카가 전도되어 붐대에 근로자 협착되는 사고가 발생되고 있습니다.
펌프카 제원에 따른 지반상태를 꼭 확인하세요.
무거운 하중으로 레미콘 차량 반복적으로 이동하고, 펌프카의 콘크리트 압송을 위한 압력으로 인하여
최초 지반 상태에서 변형이 일어 날 수 있습니다.
사용하는 건설장비의 지반상태도 잊지 마시길 바랍ㄴ디ㅏ.
감사합니다.