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This section consists of the general requirements for all nonreinforced brick masonry construction. The provisions of Sections 838, 840, 842, 844, and 858 will prevail over any conflicting provisions of this section.
Concrete footings and all other concrete elements of the structure shall be constructed in accordance with Section 825. Class B concrete shall be used unless otherwise indicated on the plans.
Mortar meeting the requirements of Article 10408 shall be freshly mixed. Any mortar which has developed initial set or which has lost plasticity will be rejected and shall be removed and disposed of by the Contractor.
Brick shall be dampened when necessary to reduce the rate of absorption. Brick masonry shall be built plumb and true to the required dimensions. Structures less than 9 courses high shall have a header course approximately mid height of the structure. On structures 9 courses high or higher, every third course shall be a header course. Other types of bonding shall be used where indicated on the plans.
Brick shall be laid with completely filled mortar joints. All cavities shall be filled with mortar. Mortar joints shall be not more than 5/8 inch nor less than 3/8 inch thick except where otherwise indicated on the plans. Joints in all surfaces that will remain exposed after backfill shall be finished with a concave jointer. All other joints shall be flush cut.
No spalls or bats shall be used except for shaping around irregular openings or when unavoidable to finish out a course in which case a full brick shall be placed at the corner and at the bat placed in the interior of the course.
Exposed exterior surfaces which will not be backfilled shall be cleaned of spilled mortar.
830-5 PROTECTION FROM COLD WEATHER.
No masonry shall be placed when the temperature is below 35°F. unless adequate protection is provided by methods meeting the approval of the Engineer.
Masonry which is less than 3 days old shall be protected from freezing by methods meeting the approval of the Engineer whenever the temperature falls below 35°F. until at least 3 curing days have elapsed.
A curing day will be considered as any consecutive 24 hour period, beginning when the last masonry unit has been set in place in the completed structure, during which the air temperature adjacent to the structure does not fall below 40°F.
There will be no direct payment for the work covered by this section.
Payment at the contract prices for the various items covered
by those sections of the specifications directly applicable to
the work being constructed will be full compensation for all work
covered by this section.