Common knowledge of coating: the reason and treatment of base alkalinity

The key points are: the reason of base alkalinity is too high: In the early stage of cement hydration, a large amount of calcium hydroxide is released due to cement hydration reaction, which is highly alkaline With the extension of curing time after base construction, the calcium hydroxide produced by cement hydration in the base gradually reacts with carbon dioxide in the air to generate calcium carbonate, the alkalinity gradually decreases, and the pH value gradually reduces to the required value during coating construction Depending on the ambient temperature of the base, the curing time generally takes 3 weeks Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Home of coating news: the reason for the large base alkalinity: cement concrete, cement mortar, etc in the early stage of hydration, a large amount of calcium hydroxide is released due to the hydration reaction of cement, which is highly alkaline With the extension of curing time after base construction, the calcium hydroxide produced by cement hydration in the base gradually reacts with carbon dioxide in the air to generate calcium carbonate, the alkalinity gradually decreases, and the pH value gradually reduces to the required value during coating construction Depending on the ambient temperature of the base, the curing time generally takes 3 weeks Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,