Construction method

Aerated concrete block Masonry is generally used for infilled walls, and the strength grade of the blocks used is generally A3.5 for partition walls and A5 for exterior walls. Mortar strength shall not be less than M5.

Before the masonry of aerated concrete blocks, the block arrangement diagram shall be drawn according to the plan and elevation of the building. The number of bricks and the height of the bricks shall be drawn on the number of bricks and the height of the bricks, and the alignment line shall be drawn between the upper side lines of the relative bricks, and the bricks shall be built according to the alignment line.

The masonry surface of aerated concrete block shall be watered appropriately. Special tools should be used for the masonry of aerated concrete (plastering shovel, saw, drill, router, straight frame, etc.).

The vertical mortar joints of the upper and lower blocks of the aerated concrete block wall shall be staggered, and the staggered length should be 300mm, not less than 150mm. If not, set 2 at the horizontal mortar joint Φ 6 or Φ 4 The length of reinforcement mesh, tie bar or reinforcement mesh shall not be less than 700mm.

The mortar joint of aerated concrete block wall shall be horizontal and vertical, and the mortar shall be full. The mortar fullness of horizontal mortar joint shall not be less than 90%; The mortar plumpness of vertical mortar joints shall not be less than 80%. The thickness of horizontal mortar joint and the width of vertical mortar joint shall not exceed 15mm.

At the corner of aerated concrete block wall, the blocks of vertical and horizontal walls shall be overlapped with each other, and the partition blocks shall be exposed to the end face. At the T-shaped junction of aerated concrete block wall, the horizontal wall block shall be exposed to the end face and centered on the vertical wall block.

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