611Brick Masonry

611.01 Description . This work consists of constructing brick masonry structures in

accordance with these specifications and in r easonably close confor mity with the lines, grades, dimensions, and details shown on the plans or as directed.

611.02 Materials . Masonry brick shall be new, whole brick of standard commercial size

with straight and parallel edges and square corners. They shall be Grade SW or Grade SM as specified and shall meet the requirements of Subsection 706.01. Unless otherwise specified, the following use requirements shall govern:

611.03 Construction Requirements .

611.03.1 Excavation . Excavation for brick masonry sh all be performed in accordance

with the provisions of Subsection 604.03.7. 611.03.2--Laying Brick . Brick masonry shall not be co nstructed in freezing weather or when bricks contain frost except by written permission of the Engineer and subject to the conditions set forth. Brick for exposed surfaces, corners, etc. sh all be selected for color and uniformity. Mortar shall be mixed only in quantities required for immediate use. See Subsection

714.11.5 for more information on masonry mortar.

Brick shall be laid upon prepared foundations in accordance with the design indicated on the plans or as directed. All brick shall be thoroughly cleaned and saturated with water immediately prior to laying. They shall be laid in courses and in a manner that will thoroughly bond them into the fresh mortar by means of the "shove joint" method. "Buttered" or plastered joints will not be permitted. The arrangement of headers and stretchers shall be that which will thoroughly bond the mass. Unless otherwise specified, brick work shall be of alternate headers and stretchers with consecutive courses breaking joints. Other types of bonding, such as for ornamental work, will be specified on the plans. All joints shall be completely filled with mort ar. They shall not be less than 1/4 inch nor more than 1/2 inch in thickness, and the thickness shall be uniform throughout. All joints shall be finished properly as the work progresses, and on exposed walls they shall be neatly struck using the "weather" joint. Bats or spalls shall not be used except fo r shaping around irregular openings or when unavoidable to finish out a course. When used to finish out a course, full bricks shall be placed at the corners and the bats placed in th e interior course. Filling materials for the interior of the walls shall be the same quality as used in the face of the unit unless otherwise indicated on the plans or directed. Weep holes shall be constructed as shown on the plans or as directed. In case a brick is moved or the joint broken after laying, the brick shall be taken up, the mortar thoroughly cleaned from the brick bed and joint, and the brick relaid in fresh mortar. In hot or dry weather, brick masonry shall be protected and kept wet for a period of at least 48 hours after the brick are laid. Only expert bricklayers shall be used for this work, and all details of the construction shall be in accordance with approved and satisfactory practice. All exposed masonry shall present an even, uniform, neat, and workmanlike appearance, and the exposed surfaces shall be thoroughly cleaned of all mo rtar and scars and the surface left the natural color of the brick.

611.03.3 Backfill . Backfill for brick masonry shall be in accordance with the provisions

of Subsection 203.03.8.6.

611.04 Method of Measurement . Brick masonry will be measured by the cubic yard or

by the thousand. The unit for measurement will be indicated on the bid sheet. When measurement is by the cubic yard, the volume will include the mortar. When measurement is by the thousand, the mortar will not be measured for payment. When either concrete masonry or brick masonry is permitted under Subsection 604.03.4, measurement will be made in accordance with Subsection 604.04. Excavation for brick masonry will not be measured for payment.

611.05 Basis of Payment . Brick masonry will be paid for at the contract unit price per

cubic yard or per thousand, as indicated, which shall be full compensation for completing the work. When brick masonry is used as an optional item of construction under Subsection 611.04, payment will be made as provided in Subsection 601.05. Payment will be made under: 611-A: Brick Masonry - per cubic yard or thousand SECTION 612 - FLOWABLE FILL

612.01 Description. This work shall consist of furnishing and placing a flowable fill

material. Uses include, but are not limited to, placement under existing bridges, around or within box culverts or pipe culverts, or at other locations shown on the plans.

612.02 Materials. All materials shall meet the requirements of the following