Process for casting concrete wall blocks for use with geogrid
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United States of America Patent
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Nov 4, 2014
Grant Date -
Feb 2, 2012
app pub date -
Jul 30, 2010
filing date -
Jul 30, 2010
priority date (Note) -
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Abstract
In casting concrete retaining wall blocks, a plurality of mold inserts form a passage between top and bottom surfaces of the block, a recess in the block top between the passage and the back of the block and a recess in the bottom of the block between the passage and the back of the block. The recesses and the passage are formed by a plurality of mold inserts. When the blocks are used in a retaining wall, geogrid fabric passes from the rear of the wall through one of the recesses in a block, through the passage in the block and through the other recess in the block into backfill for stabilizing the wall. The recesses and passage are designed so that any concrete flashing formed between abutting mold inserts is not contacted by the geogrid fabric.
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