Concrete is a necessary product in the construction field. It will accelerate the damage under the erosion of carbon dioxide, water, chloride ion, sulfate and other media. In order to prolong the service life, potassium hydroxide will be added into the concrete. So why is that? Here's the answer:
1. Dry shrinkage of concrete. When the concrete mixed with this product is cured at room temperature, the shrinkage of the first two months is slightly larger, and the shrinkage of the concrete mixed with agent after three months is smaller than that of the concrete not added.
2. Freeze thaw resistance. The volume weight of concrete mixed with potassium hydroxide is larger than that when it is not added, which indicates that it has good compactness and therefore has better freeze-thaw resistance.
3、 Anti Doping performance. For concrete with this product, its impermeability grade is higher than that of concrete without admixture.
4. Creep of concrete. The creep degree of the concrete mixed with the product is smaller than that of the concrete without the agent, and the creep coefficient is also smaller. Therefore, when it is used in the prestressed mixed soil, the necessary properties can still be retained.
5. Other properties, such as carbonation and corrosion of concrete added with potassium hydroxide, have been reported. Generally, under normal use, no adverse effects were found.
The above is the impact of potassium hydroxide on the physical properties of concrete. The addition of potassium hydroxide in concrete enhances the service strength, so as to achieve the purpose of economic applicability. In this case, the editor should also remind you to add the right amount, not too much or too little.