Blanket for concrete. Drawing, description

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Blanket for concrete. Tips for the home master

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Like a thick carpet measuring 400x1500x40 mm, it spreads on the surface of freshly laid concrete, warming it up and thereby accelerating setting, hardening and drying.

Portable building heating pads were proposed by the participants of the NTTM of the Kuibyshev Civil Engineering Institute named after A. I. Mikoyan. They have already found wide application at the construction sites of Kuibyshevgidrostroy, where they are used for active heat treatment of concrete and reinforced concrete structures up to 250 mm thick with one-sided heating and up to 500 mm with two-sided heating.

Blanket for concrete
Construction heater: 1, 5 - rubberized fabric, 2 - mesh heaters, 3 - glass wool, 4 - moisture glass wool

In the context of the blanket is a multi-layered "pie". The role of "crusts" in it is performed by a rubberized fabric, which forms an outer moisture-proof shell. Immediately behind it are two layers of mesh heaters, separated by moisture-resistant glass wool. They are covered with a thick heat-insulating layer of glass wool. The heating elements are made in the form of mesh strips 250 mm wide, placed at a distance of 100 mm from each other and connected in series by soldered copper plates.

The maximum temperature reached by the heaters is 180 °C, at the contact surface "blanket - concrete" up to 80 °C.

The blanket can be successfully used for many other construction needs: warming up the soil in winter, drying and heating floors, bases for a soft roof.

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Clean energy from the air 19.03.2023

Scientists have discovered that one of the "relatives" of the tuberculosis bacterium is an enzyme that converts hydrogen into an electric current.

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The scientists said they had discovered and studied an enzyme that could be used as a source of clean energy to power laptop computers.

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It is a rapidly growing, non-parasitic bacterial substance that is often used to study the cellular structure of the causative agent of tuberculosis, Mycobacterium smegmati. This bacterium has been known for years to convert hydrogen into electricity. Scientists have found that it is able to survive in harsh weather conditions such as Antarctica, volcanoes and deep oceans, where there are very few other sources of energy.

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