Should antifreeze be added to the pile foundation?

The pile foundation does not need antifreeze. General concrete additives will have a certain impact on the concrete structure itself. However, because the pile foundation concrete is buried under the soil, there will be geothermal energy underground to ensure that the concrete will not be frozen, so it is generally not necessary to add antifreeze. Pile foundation is a deep foundation composed of piles and caps connecting the top of piles. If all the piles are buried in the soil, and the bottom of the cap contacts the soil, it is called low cap pile foundation. If the upper part of the pile body is exposed to the ground and the bottom of the cap is exposed to the ground, it is called high cap pile foundation. Building pile foundation is usually low pile cap pile foundation, and pile foundation is widely used in high-rise buildings.

Origin of pile foundation

As early as 7000 to 8000 years ago in the Neolithic Age, people planted wooden stakes, built platforms and built settlements in lakes and swamps. This kind of settlement is called lakeside residence. In China, the earliest pile foundation was found in the primitive social housing site in Hemudu, Zhejiang. In the Song Dynasty, the pile foundation technology was relatively mature.