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Placing undeground concrete: Concrete bucket is being filled by direct chute from concrete ready mix truck. Caterpillar 345B backhoe has backed down slope toward underground utility tunnel into position to lift concrete bucket and rotate 180 degrees into position to place the concrete in the utility tunnel. Access to the utility tunnel construction is behind backhoe, by ladder. At upper left of photo is cylindrical manhole surface access to tunnel. Mott Childrens Hospital, University of Michigan, Ann Arbor, Michigan, May, 2007.
Worker pushes concrete buggy to concrete placement position after filling buggy from laydown concrete bucket at edge of floor. Worker will tilt the buggy forward to place its concrete, and then return to this point to load additional concrete. Ashley Terrace, Ann Arbor, Michigan April, 2007.
Laydown concrete bucket delivers fresh concrete through its bottom gate valve to worker powered concrete buggy at building floor edge. Worker operates gate valve lever with right hand. Bucket is supported by crane. The natural tilt of the laydown bucket allows it to extend inside the floor edge, held in place by the wire cable perimeter fall protection, in this instance. Worker will push concrete buggy to concrete placement position and tilt it forward to place its concrete, and then return to this point to load additional concrete. Ashley Terrace, Ann Arbor, Michigan April, 2007.
Demolition construction, concrete: Caterpillar 236 skid steer loader with grappler bucket travels to move concrete debris. In rear is Caterpillar 345B backhoe excavator fitted with pulverizer to reinforcing steel bars from debris. Washington and 1st, Ann Arbor, Michigan, February 2006
Concrete construction: Concrete is placed for bridge from lay-down concrete bucket supported by crane. Worker pulls down on pipe handle for concrete valve at bottom of bucket. Job built plywood concrete bounce/chute helps direct concrete to wall forms. Woodrow Wilson Bridge; Project; George Washington Street, Alexandria, Virginia, November 2006
Concrete construction: Concrete is placed for bridge from lay-down concrete bucket supported by crane. Worker pulls down on pipe handle for concrete valve at bottom of bucket. Workers in mid/foreground are installing cover on freshly placed concrete to protect it from rapid cooling and drying. Woodrow Wilson Bridge; Project; George Washington Street, Alexandria, Virginia, November 2006
Concrete construction: Concrete is placed for bridge from lay-down concrete bucket supported by crane. Worker pulls down on pipe handle for concrete valve at bottom of bucket. Job built plywood concrete bounce/chute helps direct concrete to wall forms. Woodrow Wilson Bridge; Project; George Washington Street, Alexandria, Virginia, November 2006
Demolition construction, concrete: Caterpillar 236 skid steer loader with grappler bucket travels to move concrete debris. In rear is Caterpillar 345B backhoe excavator fitted with shearer to shear reinforcing steel bars. Washington and 1st, Ann Arbor, Michigan, February 2006
Pier, foundation construction, concrete construction: Crane lifts mucking bucket out of drilled pier hole. The dark lower portion of the bucket shows the bottom of the hole is wet. The bucket apparatus will now be moved over flat ground to dump the muck out, so bucket can return to muck again. Huron Parkway South of Huron River, Ann Arbor, MI, 2005
Placing undeground concrete: Concrete bucket is being filled by direct chute from concrete ready mix truck. Caterpillar 345B backhoe has backed down slope toward underground utility tunnel into position to lift concrete bucket and rotate 180 degrees into position to place the concrete in the utility tunnel. Access to the utility tunnel construction is behind backhoe, by ladder. At upper left of photo is cylindrical manhole surface access to tunnel. Mott Childrens Hospital, University of Michigan, Ann Arbor, Michigan, May, 2007.
Placing undeground concrete: Concrete bucket is being filled by direct chute from concrete ready mix truck. Caterpillar 345B backhoe has backed down slope toward underground utility tunnel into position to lift concrete bucket and rotate 180 degrees into position to place the concrete in the utility tunnel. Access to the utility tunnel construction is behind backhoe, by ladder. At upper left of photo is cylindrical manhole surface access to tunnel. Mott Childrens Hospital, University of Michigan, Ann Arbor, Michigan, May, 2007.
Placing undeground concrete: Concrete bucket is being filled by direct chute from concrete ready mix truck. Caterpillar 345B backhoe has backed down slope toward underground utility tunnel into position to lift concrete bucket and rotate 180 degrees into position to place the concrete in the utility tunnel. Access to the utility tunnel construction is behind backhoe, by ladder. At upper left of photo is cylindrical manhole surface access to tunnel. Mott Childrens Hospital, University of Michigan, Ann Arbor, Michigan, May, 2007.
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