As we all know, the diatom mud on the market itself has strong alkalinity and weak alkalinity, because pure diatom mud can not directly achieve the wall surface, many manufacturers in the market dope other materials inside, Different manufacturers do not mix the same things, most of them add calcium oxide. The higher the content of calcium oxide, the less likely it is to fall off the powder. The lower the adsorption capacity, the higher the pH value and the stronger the alkalinity. The less calcium oxide content inside, the easier it is to drop the powder, the better its adsorption capacity, ph The closer the value is to 7, the weaker the base.
The pH of the weakly alkaline diatom mud is between 7 and 8. It is almost the same PH value as the human body and nature. It advocates the original ecology, returns to nature, and is in harmony with human and nature. The strong alkaline diatom mud has certain drawbacks due to the addition of higher levels of calcium oxide:
[Influence of color]
As a wall material, diatom mud is in the form of diatom mud powder. In the process of applying diatom mud or during the drying process of diatom mud, strong alkali will greatly affect the color. The phenomenon of impure color is serious; if a diatom mud product is not pure in the process of construction, it can be definitely a strong alkaline diatom mud.
[causing to remove powder]
The strong alkalinity of diatom mud can cause corrosive effects on the bonding substances in diatomaceous earth, so most of the strongly alkaline diatom mud will be characterized as severe powder removal. The performance is good after a period of construction, one week later or one This is the reason why powders will continue to float out of the diatom mud wall after the month. People live indoors for at least one-third of the day, and the dust that falls off enters the human respiratory tract and lungs with breathing, causing bronchitis and bronchitis, and causing pneumoconiosis.
[Quality decline]
Since the strongly alkaline diatom mud contains calcium hydroxide, there are various problems in storage and construction. The strong alkaline diatom mud is mainly added with quicklime, and can react with the glassy active silica or activated alumina at normal temperature to form an aqueous product to form a cement.
[construction damage]
Some diatom mud construction masters will have symptoms such as hand pain and cracks after a few days of diatom mud construction. In fact, these are caused by strong alkaline substances. Because the strong alkaline diatom mud is very corrosive, it will burn the skin and it is not easy to heal the wound.
Therefore, compared with the strongly alkaline diatom mud, the weakly alkaline diatom mud has obvious advantages. Because the weakly alkaline diatom mud is closer to pure natural, without adding any chemical glue and lime as raw materials, the diatom mud color after construction is softer, and the protection of the eyes, especially the visual protection of children, is better. The weakly alkaline diatom mud product retains the most primitive breathing pores of diatomaceous earth, protecting the diatomaceous earth from damage to the greatest extent, allowing the wall to achieve true free breathing.
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