TECHNICAL EVALUATION REPORT - Quad-Lock Building Systems

Continuation Sheet BUREAU OF STANDARDS JAMAICA Sheet 6 of 16 Sheets
TECHNICAL EVALUATION REPORT No. 27/2008/2060
THE MATERIALS.
Steel.
Figure 6. Preparation and installation of tilt – up panels.
The reinforcing steel to be used in the system is steel for the reinforcement of concrete
complying with relevant Jamaican and/or ASTM Standards. The restrictions on the size or other
properties of the reinforcing steel are as specified in the appropriate standards. The
specifications for the reinforcement of the different Quad-lock ® walls as outlined in Appendix B
of the Quad-lock ® manual indicate a careful design process that complies with the Jamaican
application document of the International Building Code.
Light gauge (20 gauge) steel “J” tracks are used for the alignment of the Quad-lock ®
panels/blocks to the reinforced concrete footings. These tracks are connected to the concrete or
rock substrate by bolting, screwing or nailing. Either method is acceptable but, metal screws,
nails and bolts used in the system must be chemically compatible with the steel members in order
that enhanced corrosion be avoided.
EPS Foam.
The EPS foam specified for the system vary in density between 16 kg.m -3 and 24 kg.m -3 . EPS
slabs of the type specified, when used in the manner described for the Quad-lock ® system is not
considered to pose a serious fire risk. However all EPS foam used in the system must meet the
requirements of the applicable material standard specifications.