In case you were wondering how vertical rebar is installed, the rebar is simply dropped/placed through the webs right before a lift of grout is set to get poured. This helps ensure fully grouted walls with no voids. ![]() of the wall reinforcement and masonry unit lay-up is required before grouting the. At corner locations with horizontal rebar, standard blocks can be modified (cut) so that there is a solid exterior shell with notches that accept rebar.īond beams are also helpful in providing a horizontal pathways for grout to flow. A building permit is required for retaining walls in excess of 4 feet. From both the outside and inside, the wall looks as if it is made of the same standard type block.Īs you can see from the photo, bond beams cannot be used on corners. Standard CMU blocks do not have any room to accommodate rebar which is why bond beams are used in lieu of standard blocks at courses with horizontal rebar. ![]() The rebar is simply set within these bond beams.ĬMU Walls are typically designed with horizontal and vertical rebar and then filled with grout to reinforce the CMU block. ![]() All wires shall be thoroughly embedded in the bed joint mortar and lapped a min. A Bond Beam is a type of Concrete Masonry Unit (CMU) with a notch running through it designed to accommodate placement of horizontal rebar. may be substituted for the horizontal bond beam reinforcement in the top of walls 5’-6 or less in heights.
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