MOHAWK MODEL ML-220
55
New Slab Recommendations:
The information contained in this appendage supercedes any other information given in the accompanied manual. This
information is presented for design recommendations for a new concrete slab in the event that the pre-existing floor does not meet
minimum requirements of the applicable lift type. Please read all instructions below carefully before producing new slab.
Basic Concrete Requirements:
Minimum Tensile Strength of Concrete:
4,000 P.S.I.
Minimum Aging of New Concrete Slab:
28 days (cure time)
Minimum Thickness of Concrete Slab:
See New Slab Table & Figure Attached
Minimum Width and Length of Slab:
See New Slab Table & Figure Attached
All properties of the new concrete slab are mandatory and must conform to the above stated properties before installation
of the lift is deemed acceptable. The new slab must be totally surrounded by an existing concrete floor. Certified strength
documentation should be obtained from the firm who supplies the concrete mixture at the time of the pour.
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concrete. It may be desirable to reinforce the new slab to the pre-existing surrounding floor. Care should be taken to locate these
specific reinforcement bars away from any anchor positions of the specific lift.
This new slab design does not account for second floor installations or installations in a ground floor with a basement
beneath. For this case, the lift should not be installed without written authorization from the building architect.
All
¾
inch diameter anchors must be a minimum of 6 inches away from any expansion seams, control joints or other
inconsistencies in the concrete. All 1 inch diameter anchors must be a minimum of 7
½
inches away from any expansion seams,
control joints or other inconsistencies in the concrete. Refer to anchor manufacturer specifications for specific information
concerning edge distances and bolt to bolt distance requirements.
NEVER, NEVER, hand mix your own concrete.
Rev: 6/7/06
File: New-Slab.doc
Summary of Contents for ML-220
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