Traditional Culture Encyclopedia - Traditional festivals - Will the rammed earth wall tilt outward due to natural contraction?
Will the rammed earth wall tilt outward due to natural contraction?
Rammed earth wall building, also known as adobe building, is based on adobe unique in various places and has many characteristics such as low cost, warm in winter and cool in summer. The traditional rammed earth wall is directly rammed with undisturbed soil, which is prone to insufficient wall strength, small cracks caused by natural shrinkage, large cracks caused by roof load, and wall inclination and collapse. In order to improve the strength of rammed earth wall, cement, lime and fly ash can be added under certain conditions.
The hydraulic cementing substance produced after the hydration of cement particles increases the binding force between soil particles and improves the drying and compression effect of soil. In the construction design of rammed earth wall, it should be noted that the height-thickness ratio of the wall should not exceed 10, otherwise the wall will easily collapse. Secondly, the rammed earth wall adopts the staggered ramming design, which makes it continuously strengthen the connection with the wall itself during the ramming process, which is beneficial to the stability of the wall and effectively reduces the drying shrinkage of the wall.
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