Quality assurance measures for brick masonry engineering of hotel buildings?

Quality assurance measures in the process of hotel building brick masonry engineering are very important, and the quality of every project is the key point. Only by implementing every detail can we achieve the best. Zhong Da Consulting will explain the quality assurance measures for the brick masonry project of hotel buildings.

1, Precautionary measures for uneven thickness of horizontal mortar joint of brick masonry and super-high floor slab

1. 1 Before bricklaying, the actual elevation of representative foundation surface shall be measured and leveled uniformly.

1.2 Quality control shall be carried out for the brick materials entering the site in batches. After measuring their thickness, the thickness of mortar joint shall be 9 ~ 1 1 mm, and the elevation of doors, windows, beams and slabs (including leveling and mortar thickness) shall be considered, at the corner of brick wall and10 ~ 65438.

1.3 When operating, strictly follow the elevation drawn by the skin pole, separate the skin and stay the wires, and correctly construct the doors, windows, beams and plates, so that the wall surface is smooth, the mortar joint is straight, the thickness is uniform and the elevation is consistent.

1.4 The height of each floor should be carefully re-measured, so that it can be adjusted gradually within the allowable range.

2. Preventive measures for improper assembly method

Brick masonry should be staggered up and down, with internal and external masonry to make the wall neat and beautiful. The scalp and the last skin at the top of brick masonry should be built with Ding brick, and the narrow wall and brick stack should be built in a standard way. Technical disclosure, construction in strict accordance with the specification. Broken bricks should be dispersed to ensure that the masonry length is more than 25mm.

3. Precautionary measures for empty joints, blind joints and uneven bricks at masonry joints.

Brick masonry works shall comply with the Code for Construction and Acceptance of Masonry Works, and all remaining bricks shall be vertical and flat, with no less than 2 Rachel bars on each floor. Bricklaying must be cleaned, watered and wet, and bricklaying should be smooth and straight.

4, brick masonry head seam is not dense preventive measures

In order to ensure the head joint of brick masonry is dense, leaving no hidden danger of water seepage, and enhancing the shear strength of masonry, full knife ash and mortar should be used for masonry. All embedded holes (such as derrick holes, manhole, etc.). ) or embedded windowsill board should remove the residual slurry garbage that comes into contact with the base surface, and water and moisten it, so that the vertical joints and horizontal joints are full of mortar, firmly bonded and the overall strength meets the design requirements.

5, horizontal mortar joint plumpness less than 80% of the preventive measures.

Masonry mortar should be evenly mixed, with good water retention performance, and the time for laying ash during operation should not be too long. In general, 500mm is appropriate. Bricks should be watered 1 ~ 2 days before use (the moisture content of clay bricks is 10 ~ 15%, that is, the water absorption depth around the section is 10 ~ 20 mm), but attention should be paid to avoid water film on the brick surface, which will affect the masonry quality. Only in this way can the brick achieve good fullness (above 80%) and meet the requirements of specifications and use.

6. Precautionary measures for the quality of embedded Rachel bars and seismic columns in masonry that do not meet the requirements.

6. 1 The setting of Rachel reinforcement for brick masonry is organized by the reinforcement sample, and is responsible for supervising the implementation.

6.2 Before shuttering the seismic column, the garbage on the base surface should be removed, and the reinforcement in the upper and lower encryption areas of the beam and the reinforcement extending into the wall should be concealed and accepted.

6.3 The setting of formwork clamp should be able to effectively resist the lateral pressure of concrete, so as not to crack the shell and leak slurry, and it should be cut into a 45 angle at the lower corner of protruding horse teeth to make the column concrete dense. Design requirements are determined according to specifications and design requirements.

7, brick wall crack prevention measures

7. 1 The infilled wall and partition wall of the frame shall be watered and wetted when masonry, and shall be firmly bonded with the cylinder or pad through masonry mortar. The exposed length of Rachel reinforcement is 500mm, and it is embedded in the wall. The contact between the top surface and the superstructure shall be obliquely squeezed by side bricks or vertical bricks.

7.2 Cracks at the end of parapet, longitudinal wall and window angle caused by temperature difference can be solved by reviewing design and construction drawings and studying reasonable structural measures.

7.3 The splayed crack at the window angle can also be considered from the foundation design, so that the settlement can be controlled within the national foundation design code, or a lintel can be set under the window sill.

8, wall elastic line deviation, leaving holes are not allowed to conflict with the hydropower coordinates of preventive measures.

When the internal partition wall is stretched, the position of the partition wall should be checked repeatedly from the baseline at both ends, so that each partition wall is in the same axis position, and at the same time, the masonry quality of the partition wall should be strengthened, and the position and elevation of the hole should be correct. In civil engineering and hydropower construction, we should ventilate each other and cooperate closely, create necessary working conditions and provide certain working time for them, and improve the strict examination system.

9, mortar strength is lower than the design requirements of preventive measures

9. 1 Control the quality inspection of raw materials and cement retest.

9.2 The application and actual use of the mixture ratio must be reviewed by the technical department.

9.3 The production and maintenance of test blocks shall meet the specification requirements, and the masonry and test blocks shall be maintained in time.

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