水泥也能透水。 太失望了。
但是以前看到很多水下建筑也是用水泥做的, 而且水泥是防水的这个结论也不止一次听人说过。
要么是用的水泥标号不同?
Capillary suction
Capillary suction moves moisture through porous materials. The water can be drawn upward through small pores in the concrete footing and slab and laterally through walls. This effect creates the ring of dampness seen at the base of many basement walls. This is very common at cold joints. Water can rise by capillary draw significantly as shown below:
Soil type Capillary rise
Gravel Less than a few inches
Sand 1 to 8 feet
Silt 12 to 16 feet
Clay 12 to 20 feet