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Jeraldket

13 Aug 2025 - 04:22 am

Каменная соль — одно из самых распространённых противообледенительных материалов для борьбы с гололёдом на улицах. В этой статье мы рассмотрим состав, принцип действия, последствия на окружающую среду и меры охраны при применении.

Состав и принцип действия

Основной компонент — каменная соль, но на рынке встречаются и смеси, содержащие кальциевая соль, коррозионные ингибиторы и органические присадки, например пропиленгликоль. Принцип действия прост: соль понижает точку замерзания воды, что приводит к таянию льда и уменьшению небезопасности.

Преимущества и эффективность

Использование техническая соль для дорог в мешках 50 кг цена обеспечивает быстрое и относительно дешевое удаление льда. Сюда относятся такие достоинства как простота применения, доступность и совместимость с обычной техникой для посыпки.

Недостатки и проблемы

К недостаткам относятся коррозия металла, вред растительности, ухудшение качества грунта и водных объектов при смыве талой воды. Хлориды, содержащиеся в смеси, способствуют разрушению инфраструктуры и коррозии автомобилей и конструкций.

Меры безопасности при применении

При использовании реагента рекомендуется соблюдать ряд простых правил. Хранить материал нужно в закрытых, сухих сараях, применять средства индивидуальной защиты: лабораторные перчатки и гогглы при загрузке и высыпании. Для защиты газонов используйте барьеры или снижайте нормы рассыпки поблизости.

Альтернативы и дополнения

Существуют альтернативные антигололедные материалы, которые менее вредны для природы. К ним относятся песок с добавками для улучшения сцепления, сахаросодержащие растворы и CaCl2, которые действуют при более низких температурах, но могут быть более агрессивными.

Утилизация и минимизация вреда

Отработанные реагенты и смывы следует направлять в систему обработки сточных вод или на специально оборудованные площадки. Для снижения вреда применяйте расчётные нормы посыпки и комбинируйте ручное удаление со стратегическим применением антигололедного средства.

Рекомендации для муниципалитетов и водителей

Муниципалитетам стоит внедрять программы мониторинга состояния трасс, выбирать оптимальные антигололедные материалы и обучать персонал. Водителям и пешеходам полезно знать о влиянии смеси на сцепление, избегать резких манёвров и соблюдать дистанцию в зимних условиях.

Peteroxich

13 Aug 2025 - 12:36 am

President Donald Trump speaks to reporters at the White House in Washington, DC, on January 30. Chip Somodevilla/Getty Images
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Just about everyone thought it was a bluff. Top analysts from the biggest banks on Wall Street said it was highly unlikely. Stocks were trading like it wouldn’t happen. Some companies built contingency plans, but they weren’t exactly rushing to make changes.
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But the tariffs are coming — in full force. President Donald Trump announced Saturday that a massive 25% tariff on all goods from Mexico and most imports from Canada will go into effect Tuesday. An additional 10% tariff on Chinese goods will be enacted the same day.

Trump in a message posted on Truth Social Sunday said, “We don’t need anything they have. We have unlimited Energy, should make our own Cars, and have more Lumber than we can ever use.” But America’s supply chains are reliant on its trading partners, and even for goods that could be grown or produced exclusively in the United States, the complex web of interconnected global trade cannot easily be unwound.
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So the additional costs on foreign-made goods will be paid by American importers, who typically pass those costs onto retailers, who pass them onto inflation-weary consumers. That means prices will rise — although, for most items, not immediately. Businesses’ profits will be squeezed as they bear the cost burden of the tariffs or pay to adjust their carefully constructed and at times inflexible supply chains.

That’s why stocks on Monday were set to tumble. Dow futures were more than 600 points, or 1.3% lower. S&P 500 futures sank 1.5%. and Nasdaq futures were 1.7% lower.

Globally, stocks fell, too. Major European indexes were down across the board, and Asian markets closed sharply lower. Bitcoin and other cryptos tumbled, brought down by growing fears of a recession. The US dollar rose sharply.

Energy costs surged: US crude oil rose 2.3% and natural gas spiked 7%. Despite a lower 10% tariff on Canadian electricity, natural gas and oil exports to the United States, the energy industry said it will not be able to quickly or easily find alternate sources. Diesel and jet fuel costs in particular will rise, according to Angie Gildea, the US energy sector lead at accounting firm KPMG, adding costs to all shipped goods and air travel.
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“Any infrastructure upgrades would not happen overnight,” Gildea told CNN. “Tariffs on Canadian oil would increase costs for US refiners, leading to price hikes for consumers.”

Auto industry stock futures were particularly hard-hit, because virtually all American-made cars are manufactured at least in some part in Mexico or Canada — what was a free-trade zone. GM (GM) fell more than 6%, Jeep and Chrysler maker Stellantis (STLA) was down 5% and Ford (F) fell more than 3%.

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12 Aug 2025 - 05:47 pm

Just when we thought the Coldplay Jumbotron controversy had run its course, Gwyneth Paltrow has entered the chat.

The Academy Award-winning actress and Goop founder appeared in a new – and very funny – ad for Astronomer, the tech firm whose former CEO and human resources chief launched a million memes after being shown on a Jumbotron at a Coldplay concert last week.
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“I’ve been hired on a very temporary basis to speak on behalf of the 300-plus employees at Astronomer,” Paltrow said in the clip shared on the company’s Instagram on Friday night, adding that Astronomer had received “a lot of questions over the last few days.”

In addition to her other hats, Paltrow, of course, is also the famously “consciously uncoupled” ex-wife of Coldplay frontman Chris Martin, who at a concert in Boston last week inadvertently revealed an intimate moment between two top executives at Astronomer – who were seen embracing but immediately ducked from view – during a performance of Coldplay’s “Jumbotron Song.”
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“Whoa, look at these two,” Martin quipped at the time. “Either they’re having an affair or they’re just very shy.”

The moment caused a major internet sensation and an immediate spotlight on Astronomer. Both executives shown in the video have since resigned.

In the clip featuring Paltrow on Friday, the “questions” she addresses do not deal with the controversy, but rather the tech-focused business dealings of New York-based firm Astronomer.

The clip’s caption read simply, “Thank you for your interest in Astronomer.”

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12 Aug 2025 - 04:19 pm

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12 Aug 2025 - 01:04 pm

Two planes nearly collided on the runway in Mexico City on Monday, as an AeroMexico regional jet coming in for landing flew over and touched down in front of a Delta Air Lines Boeing 737 jet already beginning to take off.
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Delta Flight 590 was starting to roll down the runway at Aeropuerto Internacional Benito Juarez with 144 customers and six crew members on board when the pilots saw another plane land directly in front of it, the airline said in a statement.
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Flight tracking website Flightradar 24 shows AeroMexico Connect flight 1631, an Embraer 190 regional jet, flew less than 200 feet over the moving Delta plane then landed in front of them on runway 5R.

The pilots stopped the takeoff and returned to the terminal. The plane eventually took off on its flight to Atlanta about three hours late.

Delta said it reported the incident to Mexican aviation authorities, as well as the Federal Aviation Administration and National Transportation Safety Board in the United States.

“Delta will fully cooperate with authorities as the circumstances around this flight are investigated,” the airline said in a statement. “We appreciate the flight crew’s actions to maintain situational awareness and act quickly – part of Delta’s extensive training.”

AeroMexico and the Mexican civil aviation authority did not immediately respond to CNN’s request for comment.

Mexico’s aviation safety rating was downgraded by the FAA in May 2021 for non-compliance with minimum international safety standards. The top level “category one” status was restored in September of 2023 after, “the FAA provided expertise and resources via technical assistance… to resolve the safety issues that led to the downgrade,” the agency said at the time.

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