Specs

Bridgestone Retail Operations, LLC
PROJECT MANUAL
Version: January 2012
• Remove masonry units that form samples after 48 hours and transport group samples to
laboratory. Keep samples protected from vibration, freezing, and moisture loss during
transportation.
• Test samples with test method ASTM C39 at 28 days. Compressive strength shall be the
average of the two samples and shall be adequate if it equals fm as defined on the
drawings but not less than 2000 psi.
b. Conduct slump test at the time compressive test samples are taken in accordance with ASTM
C143. Grout shall have a slump between 8 inches and 11 inches.
c. In addition to the required information noted previously in this specification, record the following
information on group reports:
• Mix design or mix designation.
• Test sample number.
• Specific wall areas covered by the test.
• Description of sample – dimensions amount out of plumb in percent.
• Description f units used to form sample.
• Curing history with max. /min. temperature and age when transported to the lab and age
when tested.
• Tested compressive strength.
• Description of failure.
Mortar:
a. Prepare and test mortar in accordance with the following (UBC Std. 24 – 22)
• Spread mortar on the masonry units ½ to 5/8 inch thick and allow standing for one minute.
• Remove mortar and place in a 2 inch by 4 inch cylinder in two layers, compressing the
mortar into the cylinder using a flat end stick or fingers. Lightly tap the mold on opposite
sides, level off and immediately cover molds and keep them damp until taken to the
laboratory.
• Opposite sides, level off and immediately cover molds and keep them damp until taken to
the laboratory.
• After 48 hours set, have the laboratory remove molds and place them in the fog room until
testing in damp conditions.
b. Execute one mortar test specimen for each 2,500 square feet of masonry wall constructed and
minimum of one mortar test specimen for each date that masonry construction is performed.
Test specimen at 28 days.
c. Strength of mortar will be considered satisfactory if each mortar test equals or exceeds 1,500
psi (this corresponds with type S, 2000 psi mortar mix as defined in the Contract Documents).
d. In addition to the required information noted previously in this section, record the following
information on the masonry mortar compression reports:
• Mix design or mix designation.
• Test sample number.
• Specific wall areas covered by the test.
• Description of units used to form the sample.
• Tested compressive strength.
3.09 Structural Inspection Specifications
The Testing Specifications listed below shall be executed without deviation in accordance with the
Project Drawings and Specifications. Any discrepancies between these documents will be brought
to the immediate attention of the Bridgestone Retail Operations, LLC Zone Construction Manager.
QUALITY REQUIREMENTS 01400 - Page 8 of 11