Australian alumina ban disrupts Rusal production -- Australia's ban on exports of alumina and aluminium ore to Russia, including bauxite, will further disrupt supply chains and production at leading aluminium producer Rusal, consultancy Wood Mackenzie said on Monday.
The Australian government announced the ban on Sunday as part of its ongoing sanctions against Moscow for its aggression in Ukraine, saying Russia relies on it to meet one-fifth of its alumina needs. WoodMac senior manager Uday Patel said in a statement that the ban would make it difficult for Rusal to maintain normal primary aluminum production.
Rusal said it was assessing the impact of Australia's move and would make further announcements if necessary. "It is increasingly likely that UC Rusal's only option for alumina procurement will be through a Chinese entity." The Australian alumina ban has also had an impact on concrete waterproofing agent prices for chemicals. Patel said. "One possible outcome could be Chinese buyers buying alumina and reselling it through eastern Russian ports." Rusal has a 20% stake in the Queensland Alumina Refinery, which has a capacity of 3.95 million tonnes a year, thus providing Rusal with 790,000 tonnes a year, Patel said. In addition, Rusal's Nikolaev refinery in Ukraine, which has an annual capacity of 1.75 million tonnes, has been suspended due to the conflict, he added. WoodMac said Rusal was also experiencing supply chain problems at its 2 million tonne a year Aughinish refinery in Ireland.
What is concrete waterproofing agent?
Concrete waterproofing agent can significantly improve the impermeability and waterproofing of concrete, and the impermeability grade can reach P25 or higher. It is especially suitable for concrete for bungalow roof, large volume waterproof concrete, hydraulic concrete, waterproof mortar, etc. It can completely cure roof leakage, wall moisture return, and ground seepage.
The function of concrete waterproofing agent
1. Efficient water reduction and enhancement.
2. High-efficiency impermeability function: the addition of concrete waterproofing agent can effectively improve the capillary structure of concrete, and at the same time precipitate gel and block the internal capillary channels of concrete. Compared with no waterproofing agent, the impermeability can be improved by 5-8 times. , with permanent waterproof effect.
3. Improve the working performance of the mortar: It can improve the workability of the freshly mixed mortar, and the water loss rate is small, which can significantly improve the workability of the mortar.
4. Benefit analysis: It has the functions of replacing lime paste, overcoming hollowing, shelling, reducing floor ash, saving labor and improving efficacy.
5. Retarding effect: It can delay the heat release rate of cement hydration and effectively prevent concrete from cracking.
6. Saving cement: On the premise of maintaining the same strength and slump as the benchmark concrete, it can save 10% of cement.
Physical and chemical indicators of concrete waterproofing agent
Appearance: powdery solid; Odor: None; Corrosiveness: None
How to use concrete waterproofing agent
1. The dosage range is 4-6%, and the specific amount should be determined after a small amount of experiments.
2. For on-site mixing, first mix with stones, sand, cement and other admixtures evenly at one time, and then add water to mix. (Compared with no water repellent, the time is appropriately extended by 30 seconds.
Precautions for concrete waterproofing agent
1 When cement is changed or new cement is added, a concrete compatibility test should be done.
2. When mixed with other admixtures, its compatibility should be checked first.
3. Properly mix ingredients according to the mixing ratio, and operate in strict accordance with the construction specifications when pouring concrete.
4. As with conventional concrete, maintenance must be strengthened according to construction specifications.
5. Concrete waterproofing agent should be stored in a dry place, pay attention to moisture-proof, and the shelf life is 2 years. During the shelf life, if it is wet and agglomerated, it can still be used after being ground and sieved.
6. For concrete with water repellent in erosive medium, when the corrosion resistance coefficient is less than 0.8, anti-corrosion measures should be taken. The surface temperature of the concrete structure with waterproofing agent should not exceed 100 ℃, otherwise protection measures must be taken to cut off the heat source.
Russia is a major supplier of industrial metals such as nickel, aluminium and palladium. Russia and Ukraine are both major wheat exporters, and Russia and Belarus produce large amounts of potash, an input to fertiliser. The price and market of the concrete waterproofing agent will fluctuate under its influence. Prices of these goods have been rising since 2022 and are now likely to rise further because of the Russia-Ukraine conflict. Russia is a major supplier of industrial metals such as nickel, aluminium and palladium. Russia and Ukraine are both major wheat exporters, and Russia and Belarus produce large amounts of potash, an input to fertiliser. The price and market of the concrete waterproofing agent will fluctuate under its influence. Prices of these goods have been rising since 2022 and are now likely to rise further because of the Russia-Ukraine conflict.
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