Sand aerated block Introduction to concrete blocks in
sand Aerated concrete block Key points of construction:
(1) The base course shall be cleaned and leveled at the place where the aerated concrete masonry wall needs to be built on the foundation plane or floor, and the center line and side line of the wall and the door and window openings shall be popped out. The purpose is to ensure the correct location of masonry. The number of bricks shall be calculated from top to bottom (including the height of horizontal mortar joint and reserved space for inclined block masonry). When the height of the bottom skin block is irregular, cement bricks or plain concrete and specially made blocks can be used for masonry.
(2) Before building a block, trial placement shall be carried out according to the requirements of the designed block arrangement to:
In order to give better play to the mechanical properties of masonry, the overall stability of masonry; Through trial swing, we can determine which models and specifications to use, and try to reduce the consumption of non models and specifications, so as to reduce the sawing of bricks; Through trial swing, you can correct the size on the pico bar.
(3) The horizontal joint of the block shall be evenly plastered with the adhesive on the surface of the lower block with tooth trowel; The vertical joint of the block can be plastered with adhesive on the short end of the block first, and then laid on the wall; Rub and press hard after climbing the wall, and gently hit the block with a rubber hammer.
(4) The required non-standard blocks shall be cut into regular cuboids with portable electric saw or corresponding mechanical equipment.
(5) During masonry construction, before each block is built, the floating sand (dust) on the surface of the block shall be cleaned with a brush, and the adhesive at the horizontal and vertical mortar joints shall be paved after being cleaned.
(6) The internal and external walls of load-bearing blocks should be built at the same time, which is also the main measure to strengthen the integrity of masonry; The corner and junction of masonry shall also be built at the same time. For those places that cannot be built at the same time but need to leave temporary breaks, they should be built into oblique tenons, and the horizontal projection length of oblique tenons should not be less than 2/3 of the height. When jointing, the joints shall be cleaned first, and then the bonding materials shall be laid for jointing.
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