1. Can bubble bricks build external walls?
aerated brick has 7 strength grades and 6 density grades. Usually, bubble bricks can be used to build the external walls of frame structures. So it is certain.
Bubble bricks are autoclaved aerated concrete blocks. For walls built with bubble bricks, the weight of the same cubic masonry is about a quarter of that of ordinary brick walls and about a fifth of that of conventional concrete, which can greatly reduce the self-weight of house masonry and reduce the total weight of buildings by about 2% to 3%. Moreover, compared with the traditional brick wall, the wall made of bubble brick has strong heat preservation and frost resistance and good water resistance, and is a new type of environmental protection and energy-saving material.
Bubble bricks can be used to build external walls in buildings with frame structure, and the load bearing of frame structure is borne by beams and columns, so it is possible to use bubble bricks as filler walls to build external walls. However, in the brick-concrete structure, the bubble brick masonry can not be used as a load-bearing wall, but only as a filler wall, because the load-bearing performance of the bubble brick is poor and it can only bear the weight of the wall itself.
second, can the expansion screw be used for the bubble brick wall?
Bubble bricks have many advantages:
(1) Light weight. Bubble bricks are made by mixing small foam particles and cement. Compared with other substances, foam has the advantage of light weight, so the brick body is relatively light compared with other swivels, which can effectively reduce the load of urban buildings.
(2) Good earthquake resistance. Bubble brick is a kind of porous material. These small holes can effectively disperse the strong shock wave caused by the earthquake. Coupled with its own light weight, the building load is small and the earthquake resistance is strong.
(3) No cracking and strong water resistance. It is precisely because of the addition of small particles of foam that the toughness of this brick is strengthened, and it will not crack and empty easily. At the same time, the foam material makes the bubble brick have strong water absorption.
However, the disadvantages of bubble brick are obvious:
Its light weight makes it unsuitable for load-bearing walls and cannot be used on low-rise walls. Moreover, its density is not high, and if nails or expansion bolts are nailed on it, it is easy to loosen.
Therefore, if the bubble brick is perforated, the expansion bolt can't be eaten and the hanger can't be fixed. It is difficult to do special reinforcement. It is not recommended to hit collision screws on bubble brick walls.
third, how to paint the bubble brick wall?
House decoration is not a simple matter. After buying a house, people often don't have much on their hands, so many owners will do some simple projects themselves when decorating, such as painting walls. Nowadays, the bricks for building walls are usually popular with bubble bricks. As a novice, it is necessary to know the skills of painting bubble walls in advance.
Since 3-thick thermal insulation slurry needs to be attached to 1-thick polyurethane thermal insulation, the construction technology of gluing grid cloth is adopted. The thermal insulation slurry is made of single-layer glass fiber grid cloth, and the adhesive slurry is applied on the foamed thermal insulation surface layer that has been stuck on the wall, and then the mesh cloth is laid horizontally to ensure that the grid cloth does not fall off. The length of a single mesh cloth should not exceed 6m, and it should be leveled and compacted. It is forbidden to fold and uneven the mesh cloth. The lap length is 1mm.
remember to keep rubbing when applying thermal insulation slurry to avoid forming hollow valleys and cracks. The construction intermission should be left at the natural disconnection point to facilitate the connection of subsequent construction. If it is necessary to pause on the continuous wall, the insulation slurry should not completely cover the laid mesh cloth.
The above is about whether the bubble brick can be used to build an external wall, whether the bubble brick wall can be screwed with expansion screws, and how to paint the bubble brick wall. I hope it will help everyone! If you want to know more about bubble bricks, please stay tuned.