Masonry Magazine June 1983 Page. 19
C. Hold vertical joints true to a line by adjusting width of head joint to take up variations in brick size, while mortar is soft and plastic.
D. Remove any unit disturbed after mortar has stiffened, clean joints and reposition the unit with fresh mortar.
E. All joints in a length and height of panel shall be uniform in width and shall not vary more than ½ inch from the average width of the joint in the panel, but in no case shall a joint be larger than ½ inch.
F. All erection and connection devices shall be inserted at the time of construction of panels.
G. Vertical joints shall be shoved tight and all the joints shall be completely filled with mortar. Joints in exposed surfaces shall be compressed and compacted, and tooled when thumbprint hard with a specially fabricated jointer. Joint shall be formed clean to the edges of the brick. Remove all fins and loose mortar at side of the joints. Joints in unexposed surfaces shall be filled.
H. All exposed surfaces of brickwork shall be cleaned as soon as possible with an approved cleaning agent, complying with BIA's standards.
I. Each individual prefabricated member shall be marked to identify and correspond to those shown on approved shop drawings (by mark number and date of manufacture).
J. All brick surfaces which will be in contact with sealant shall be free of dust, sand or other material which would interfere with bonding.
3.02 PREFABRICATION TOLERANCES
A. Based on actual dimensions, a prefabricated masonry panel shall not vary from the detailed dimensions by more than the following:
1. 10 ft. or under . . . plus or minus % inch.
2. 10 ft. to 20 ft. . . . plus % inch or minus e inch.
3. 20 ft. to 30 ft. . . . plus % inch or minus 4 inch.
4. For each additional 10 ft. plus or minus Vis inch.
B. Panels shall have a maximum out-of-square (difference in length of two diagonal face measurements) differential of not greater than. ½ inch per 6 ft. or an absolute maximum of 4 inch.
C. The faces of panels shall not be out of plane more than ½ inch for each 6 ft. of either height or width.
D. The location of anchors, inserts, lifting and connection devices shall not vary from center line location shown on the drawings by more than ½ inch.
3.03 PANEL ERECTION
A. General Contractor/Construction Manager shall provide the panel erector with all necessary lines and grades.
B. Prior to beginning the installation of "Prefabricated Masonry Panels" all surfaces of the supporting structural frame shall be examined and all conditions detrimental to the proper and timely completion of the installation shall be brought to the attention of the General Contractor/Construction Manager for correction.
C. Panels shall be erected only by an experienced and qualified erector under supervision of the panel manufacturer. Erector shall not handle the masonry panels in a manner which would cause damage to the panels.
D. Panels shall be erected accurately, plumb and true, maintaining all surfaces level or plumb.
E. All connection details to other structural elements shall be treated in strict conformity with approved shop drawings.
F. Clean field welds by wire brushing, then protect the weld with field coat of red oxide primer or approved equal. Remove the please turn page
HEAVY DUTY MASONRY EQUIPMENT BRICK CARTS NEW LOWER PRICE 3 MODELS TO CHOOSE FROM Tilt capacity from 600 lbs. to 1000 lbs. FORKLIFT MORTAR TUBS NEW LOWER PRICE 10 cu. ft. full batch capacity Reinforced corners on all tubs 6 cu. ft. ½ batch capacity ADJUSTABLE SCAFFOLDING NEW PRICE New! Legs capped to keep morter out. Set-um down and they-re set up. For single story structures and interior partitions up to 9' high. Low cost-easy to use. Write for a FREE brochure and contractor's pricing on these and other masonry items for the contractor. DEALER INQUIRIES INVITED. STAR TOOL CO. 4101 Garland Dr. Dept. TM Fort Worth, Tx 76117 817-485-6073 MASONRY-MAY/JUNE, 1983 19