Scientists make cement that’s Solar-powered and emits light | HT Tech

Scientists make cement that’s Solar-powered and emits light

Currently, the cement exists in blue or green colour, and the light intensity can be regulated to avoid dazzling drivers

By:PTI
| Updated on: May 09 2016, 17:36 IST
image caption
Currently, the cement exists in blue or green colour, and the light intensity can be regulated to avoid dazzling drivers (Pixabay)
image caption
Currently, the cement exists in blue or green colour, and the light intensity can be regulated to avoid dazzling drivers (Pixabay)

Scientists have created a new light-emitting cement that could last a hundred years and illuminate roads, highways or bicycle lanes at night by absorbing solar energy during the day.

Currently, the cement exists in blue or green colour, and the light intensity can be regulated to avoid dazzling drivers.

"The main issue was that cement is an opaque body that doesn't allow the pass of light to its interior," said Jose Carlos Rubio, from Michoacan's University of San Nicolas Hidalgo (UMSNH) in Mexico.

Rubio explained that common cement is a dust that when added to water dissolves like an effervescent pill.

"In that moment it starts to become a gel, similar to the one used for hair styling, but much stronger and resistant; at the same time, some crystal flakes are formed, these are unwanted sub-products in hardened cement," Rubio said.

Due to this, researchers focused on modifying the micro-structure of the cement in order to eliminate crystals and make it completely gel, helping it to absorb solar energy and then return it to the environment as light.

Rubio said that most fluorescent materials are made out of plastic and have an average of three years of life span because they decay with UV rays. However, the new cement is sun-resistant and has an estimated lifespan of 100 years.

The material is made out of sand, dust or clay that becomes the gel, and the only residue of its production is water vapour, researchers said.

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First Published Date: 09 May, 16:35 IST
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