Water glass type acid-resistant cement is a new type of decorative material. Water glass type acid-resistant cement is used in decoration. However, many people do not know much about the application range, use method and price of water glass type acid-resistant cement. The following small series will tell you the application range and method of water glass type acid-resistant cement. 1. What is water glass type acid resistant cement? 1. Water-glass type acid-resistant cement is a kind of powdery material made by using high-grade acid-resistant materials and hardeners in the appropriate ratio or grinding and mixing separately. In use, water-glass (Na2OnSiO2) solution and sodium fluorosilicate (Na2SiF) can be hardened in air, and it is a good anti-corrosion building material resistant to most liquid or gaseous inorganic acids and organic acids. Second, water glass type acid-resistant cement application range 1. It can be used in the construction of acid-resistant equipment in chemical, petroleum, metallurgy, machinery, papermaking, textile, sugar and other industries. It is based on acid corrosion equipment, acid storage tank, workshop floor, trench and gaseous acid. In the corroded chimney lining building, it can be used to prepare acid-resistant mortar to build acid-resistant bricks, plates, etc.; acid-resistant concrete can be prepared by adding acid-resistant coarse aggregate (stone) and acid-resistant fine aggregate (sand). 2, can not be used for hydrofluoric acid, fluorosilicic acid, 300 ° or more thermal phosphoric acid and higher fatty acids and oleic acid, palmitic acid and other alkaline salt erosion engineering. When used in the food industry, the fluoride content in sodium fluorosilicate should be tested first to prove that it is harmless to the human body. Third, water glass type acid-resistant cement use method 1. Whether it is blending clay or acid-resistant concrete, it must be added with hardener sodium fluorosilicate to mix it well with acid-resistant cement; it is best to sieve twice, then use the specific gravity of 1.38-1.45 and the modulus between 2.60-2.80. Water glass solution blending (do not mix with water!). 2. When using, put the mixed product in the container first, then add the water glass solution, the mixing should be even and rapid; generally it is better to mix less than 100 kg each time, each time the glue is adjusted When used up within 45 minutes, the tools and containers used must not contain moisture or other impurities. Sticking to acid-resistant bricks should pay attention to the wrong seams. 3. The metal equipment should be derusted and decontaminated before construction. The brick structure should be cleaned. The surface of the alkaline ordinary cement structure should be washed with acid and then washed with water, then dried and heated. Generally, the water content is lower than that. 4% or less. 4, acid-resistant cement should be hardened at temperatures above 10 °C, and maintained in the air for 10-20 days, (longer winter time) avoid steam, water, etc. during maintenance, not directly exposed to the sun to prevent cracking If there is a crack, it will be repaired. 5, after curing, acidification treatment, the method is to brush the surface with 40% sulfuric acid, once every 4 hours, each precipitated crystal should be scraped before the next brushing, until no crystal precipitation, acid treatment Once completed, it can be delivered. Fourth, water glass type acid-resistant cement price Water glass type acid-resistant cement market retail price of 600 yuan a ton, different areas of acid-resistant cement, like ordinary cement, water and sand mixing is not very good! The water glass type "acid-resistant cement" is a powdery material made by using a high-grade acid-resistant material and a hardener in a proper ratio or grinding and mixing separately. When used in an appropriate amount (about 30% or more) of the water glass solution, it can be bonded and hardened in the air, and has the property of resisting corrosion of various inorganic acids and organic acids. Technical standard JC77-65 stipulates that the main properties of water glass type "acid resistant cement" are as follows: Product performance indicators: fineness 0.080mm square hole sieve does not exceed 15%. Setting time: initial setting is not earlier than 30 minutes, and final setting is not later than 8 hours. Tensile strength: 24 Kg/cm2 after 28 days. Compressive strength: 300 Kg/cm2 after 28 days. Acid stability: The test piece did not change after boiling for 1 hour in 40% sulfuric acid, and the strength did not decrease. Acid resistance: resistant to pure sulfuric acid greater than 95%. Chemical composition: SiO2>95%; Fe2O3<1%. Summary of the small series: The above is a small series today to provide you with information about the application range of water glass type acid-resistant cement and the price of the use method. If you choose water-glass acid-resistant cement in the future, you can refer to it and hope to help everyone.
Water glass type acid-resistant cement use method and price