A group of civil engineering technology students at the Southern Alberta Institute of Technology say they're well on their way to finding a solution to Calgary's perpetually cracking sidewalks, caused in part by the city's notorious freeze-thaw cycles.The group of SAIT civil engineering technology students, with Chandos Construction members, in front of the concrete slab they poured at the SAIT Connector Lab.
Over the course of six months, the group added graphene to concrete, poured sidewalk-sized slabs, and conducted many compressive and freeze-thaw tests to see if their theories held up."We were able to prove that, yes, indeed, by adding a certain amount of graphene you can get an increase in strength," said Leung.
"Over time, assuming that there's going to be a longer lifespan, you have a reduction in CO2, you're going to potentially use less concrete over time, less maintenance, less repairs," said Leung. The team's concrete slabs are currently in storage at SAIT's Connector Lab, which acts as a library for specialized technology."It's kind of a showcase project in that there's many unknowns, the group is trying something that hasn't been tried before, we've implemented a lot of different phases in this project that go past just the design phase," said Duchscher.
Source: Tech Daily Report (techdailyreport.net)
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