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hollow core guiderr installguide v19 final web

MAGIC BLOCK HOLLOW-CORE FREESTANDING WALLS Redi-Rock Magic Block freestanding hollow-core units are stacked similar to other Redi-Rock freestanding blocks but then ?lled with concrete Freestanding Hollow-Core Blocks work well for freestanding barriers and can also be utilized for cantilever retaining walls CANTILEVERED WALLS For many applications the Freestanding Hollow-Core Blocks will be supported by a reinforced concrete footing Prior to placing the footing layout the wall to determine the locations of the open cores in the staggered rows of hollow-core units This will help determine where rebar should be placed in the footing When determining vertical rebar placement consider the equipment that will be used to set the block to help avoid con icts Number and size of rebar will depend upon the engineer ? s structural design Construct the footing on a competent subgrade per the design drawings Once the footing has cured use a stringline to mark the alignment of the blocks usually the inside of the block Begin setting blocks A scissors-type clamp works well Figure Alternatively straps looped around the interior ribs can be used as well Figure redi-rock com ? Redi-Rock International LLC Redi-Rock Installation Guide V CINSTALLING REDI-ROCK Corners can be constructed in the wall using hollow-core corner blocks These blocks have texture on three sides For a tight ?t between blocks the texture on the corner block can be trimmed by or inches where it abuts the adjacent block If the design requires continuous rebar cut a section out of the side of the corner block aligned with the hollow core of the adjacent block Figure Place horizontal rebar in the blocks supported in the grooves on the interior structural ribs Place the vertical rebar lapping and tying as required Stack the next row of block making sure to carefully align the blocks and staggering the joints to create a running bond We recommend stacking no more than three courses of block without ?lling the core Prior to in ?lling the wall we suggest grouting the joints between blocks with non-shrink standard grout This helps prevent leakage during in ?lling and provides an aesthetic element In ?ll the hollow core of the wall with ready-mix concrete meeting the requirements of the design Place the concrete carefully to prevent misalignment of the rebar While ?lling use an internal concrete vibrator to ensure consolidation and eliminate voids Figure Redi-Rock Installation Guide V redi-rock com ? Redi-Rock International LLC CCOPING Magic Block Freestanding Hollow-Core Blocks can be placed on Redi-Rock PC-series walls to create a freestanding coping The connection uses a No rebar hook to tie the coping to the upper PC blocks Install a No rebar hook through the lifting hook in each PC block and let the hook lay on the shear knob Install PC geogrid strips if required Fill the PC core with stone to the recess area Place plastic sheeting over the geogrid exposed in the PC core Set the Freestanding Hollow-Core Blocks in place on the PC blocks Install the horizontal