Today the concrete is greener



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Today the concrete is greener

Icare technology, developed by Chryso researchers to increase the reactivity of the concrete, creates a synergistic effect between chemical and mechanical activation with the ultimate goal of increasing the compressive strength of short and long curing cements.

Regardless of the type of mill and plant, thanks to better control in the cement transport operations during the different stages of the process, the technology can overcome the potential 'bottlenecks' deriving from intrinsic limitations of the equipment, concretely facilitating companies to produce high quality cement while reducing production costs.

Today the concrete is greener

The increase in compressive strengths can be converted into a decrease in clinker points in favor of other more environmentally sustainable constituents, ensuring a net reduction in energy costs and CO2 emissions.

Chryso, a French group in the building additives sector, has implemented Icare technology to decrease production costs and energy needs in the production of cement, while favoring a net reduction in CO2 emissions. A way to support cement manufacturing companies in achieving their goals and pay attention to the 'green' world of construction.

Meanwhile New Zealand startup Emrod, seems to have found a technology system to transfer wireless electricity over long distances. The first prototype of this system, developed and built in collaboration with Powerco, an important electricity distribution company in New Zealand, is capable of transporting 2 kW of power.

The system itself is actually nothing particularly innovative. This technology is in fact already used for military purposes. Emrod also says that this efficiency can be increased by carrying out studies on transmission frequencies similar to those conducted for 5G.

The rest of the system components are quietly reaching 100% efficiency. In Emrod's vision, wireless electricity is the key technology for the complete transition to renewable energy sources. Electricity from renewable sources is often generated far from where it is needed.

The transmission distance is limited by the line of sight between repeaters. For the beam of electromagnetic waves to be transmitted, it is necessary that the repeaters see each other. The beam of electromagnetic waves transmitted is in the ISM frequency band (Industrial, Scientific and Medical), a band in which Wi-Fi and Bluetooth are included, for example.

A microwave transmitting antenna, a series of signal repeaters carry it and a receiving antenna (rectenna) converts the microwaves into direct current. Signal repeaters have the appearance of square panels placed on a pole The innovation, which has made this technology commercially attractive, is linked to the use of new materials that allow a more efficient reconversion of electromagnetic waves.

The repeaters, in fact, according to what Emrod itself said, have practically zero energy losses. Finally, transmission efficiency depends only on the antenna it transmits. A standard antenna has a transmission efficiency of approximately 70%.

This requires the use of channeling and addressing systems or large storage systems. The transmission mechanism is safe and does not impact the environment. The system involves the use of a low-power laser which, if interrupted (by a bird, an aircraft, etc.), immediately turns off the transmission.

However, Emrod specifies that the interruption of the transmission does not serve to "save" who is on the transmission line, but more to understand that the transmission has been disturbed and / or interrupted.