Cement for stones and slabs. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Cement for stones and slabs. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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The best formulations for cementing stones and slabs the following are considered: 1 part by weight of resin and sulfur, melted in separate vessels, are mixed together and 3 parts of lead litharge and 2 parts of crushed sand are added to the resulting mixture, constantly stirring. Sand and litharge are pre-dried and thoroughly crushed. Also a good cement is a mixture of 1 part by weight of sulfur, the same amount of pitch (coal tar pitch) and 1/10 part of wax. This mixture is melted and 2 parts of crushed brick are added to it.

In order to cement sand slabs with such a composition or fill grooves with them, the slabs must first be well dried, and the surfaces poured with cement should be smeared with drying oil. The use of the above compositions is especially beneficial when the stones are exposed to intense heat or cold, as well as rain or snow.

Under such conditions, these compounds give, as experience has shown, incomparably better results than the advertised cement of different brands.

Author: Korolev V.A.

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In the spring of 2013, the Californian company Liquipel intends to open an office in Russia and launch its own service for processing smartphones, tablets and laptops with a nanocoating that protects devices from moisture. This was told to CNews in the company's management at the Mobile World Congress taking place these days in Barcelona.

The coating developed by Liquipel is based on a patented liquid repellent. When applied to a device, this coating becomes part of the device and is not felt to the touch and does not affect performance. The coating can be applied both to the outer surface of the device and to its inner parts. The gadget processed in this way does not fail even when completely immersed in water. True, in the case of a smartphone, for example, working with it under water will not work - when immersed, the touch screen does not respond to touch.

According to a Liquipel representative, the service will be offered in Russia to end users who can come to the company's office in person for this service or send their device for processing by mail. The first office is planned to be opened in Moscow, and subsequently to expand to other major cities. One of them, most likely, will be St. Petersburg.

In addition to plans to provide services directly, Liquipel also signed an agreement with one of the Russian distributors (the company chose not to disclose its name until the official launch of the service), which will supply devices already treated with a moisture-proof coating to retailers upon their request. In addition to the United States, the company already provides such a service in Hong Kong, Malaysia, Turkey, Canada and Australia, Namibia, as well as in the countries of the Middle East. The cost of the service in Russia has not yet been disclosed. In the US, processing one device costs $59.

It should be noted that the technology of protecting mobile devices from moisture using nano-coating is not unique. For example, the American company P2i is also developing it. The new P2i coating, announced at the Mobile Congress, also allows the treated device to be completely submerged in water without any effect on its performance.

True, unlike Liquipel, the company considers direct cooperation with mobile device manufacturers as the main model for its distribution. Representatives of the company told CNews that Motorola and Alcatel use their waterproof technology of the previous generation, so the appearance of the new technology can also be expected in the first place in the devices of these manufacturers.

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