【Daily Discussion】Utilities - Civil Engineering - 20210414

The overall quality requirements for brick masonry are: horizontal and vertical alignment, adequate mortar filling, overlapping joints, and secure connections between joints.

The overall quality requirements for brick masonry are: horizontal and vertical alignment, adequate mortar filling, overlapping joints, and secure connections between joints.

The overall quality requirements for brick masonry are: horizontal and vertical alignment, adequate mortar filling, overlapping joints, and secure connections between joints.

The overall quality requirements for brick masonry are: horizontal and vertical alignment, proper filling of mortar, overlapping joints, and secure connections between joints. Specific requirements

Straight and level, with full mortar, staggered joints, and reliable connections

The quality requirements for brick masonry can be summarized in sixteen words: horizontal and vertical alignment, proper filling of mortar, overlapping joints, and secure connections.

The overall quality requirements for brick masonry are: horizontal and vertical alignment, proper filling of mortar, overlapping joints, and secure connections between joints. Specific requirements: 1. It must be horizontal and vertical. Brick masonry has good compressive strength but poor shear strength. To ensure that the masonry is subjected to uniform compressive stress without any shear horizontal forces, the mortar joints in the masonry must be level and vertical; otherwise, under vertical loads, shear stresses will arise along the interface between the mortar and the bricks. Vertical mortar joints must be vertically aligned; any misalignment results in what is known as uneven jointing, which affects the aesthetic quality of the wall. 2. The mortar is full. To ensure even stress distribution on the bricks and strong bonding between them, it is necessary that the horizontal mortar joints be full and of uniform thickness; otherwise, the bricks are prone to bending and breaking under stress. The mortar filling degree of horizontal joints must be no less than 80% ； Vertical grout joints must not have transparent joints, dead joints, or fake joints. 3. Misaligned seams up and down. To improve the integrity, stability, and load-bearing capacity of masonry, the principle of arranging blocks should be to interlock them vertically and horizontally, avoiding continuous vertical gaps. The length of the offset lap should generally be no less than 60 mm, while also taking into account ease of masonry and minimizing the need to cut bricks. 4. The joint is reliable. Jiecha refers to the jointing method between masonry laid first and masonry laid later. The appropriateness of the jointing method has a significant impact on the quality of the masonry and the integrity of the building; in seismic areas, it particularly affects the building’s seismic resistance. Brick walls at corners and joints should be constructed simultaneously; it is strictly prohibited to build the interior and exterior walls separately without reliable measures. For temporary breaks that cannot be constructed simultaneously but must be retained, they should be built as inclined joints, with the horizontal projection length of such inclined joints being no less than 2/3 of their height. In temporary joints in areas that are not seismically designed or where the seismic design intensity is 6 or 7 degrees, when it is not possible to leave diagonal joints, straight joints may be used except at corners; however, such straight joints must be constructed as convex joints. Reinforcing bars for bonding should be installed at the joints where the walls meet. The number of such bars is 1 φ6 bar per 120 mm of wall thickness (2 φ6 bars for walls with a thickness of 120 mm); the spacing between these bars along the height of the wall should not exceed 500 mm. The embedment length of these bars, measured from the joint, should be no less than 500 mm on each side. In areas with seismic intensity levels of 6 or 7, this length should be no less than 1000 mm ； There should be a 90° hook at the end. 5. Brick columns in rows should be built by pulling a string. 6. No scaffolding openings shall be left on brick columns. 7. The daily construction height should not exceed 1.8 m. 8. Pillared walls should be constructed simultaneously with the main wall structure, with accurate alignment; for rows of pillared walls, a straight line should be drawn along their outer edge during construction. Brick masonry work generally serves as the main structural component of a construction project, and its importance is self-evident. From the above brief overview of the quality requirements for brick masonry work, it is clear that, on the basis of adhering to the general principles, it is necessary to understand and comply with various requirements regarding specific construction steps, methods and procedures, height, and related appearance aspects.

The overall quality requirements for brick masonry are: horizontal and vertical alignment, adequate mortar filling, overlapping joints, and secure connections between joints.

The overall quality requirements for brick masonry are: horizontal and vertical alignment, proper filling of mortar, overlapping joints, and secure connections between joints.

The overall quality requirements for brick masonry are: horizontal and vertical alignment, proper filling of mortar, overlapping joints, and secure connections between joints.