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10 天
on MSN
Drexel scientists have developed concrete that can melt snow on its own
One method involves placing paraffin inside capsules, then mixing the capsules into concrete. This method helps melt snow ...
The Sentinel
10 天
Drexel scientists develop concrete that can melt snow on its own
A project at Drexel University is developing self-heating concrete, which can keep streets safe from icy conditions while ...
For Construction Pros
4 年
How To Reinforce Concrete Slab on Ground to Control Cracking
Positioning a single layer of reinforcement in ... reinforcement may not be properly located in the slab. Support reinforcement with chairs or precast-concrete bar supports. Chairs should have ...
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