Bridge closed after being struck by two vehicles in five months to reopen ahead of schedule
A historic road bridge that was hit by two vehicles on separate occasions last year and closed for repairs should be reopened ...
Interesting Engineering6h
New mortar mix cuts building heat loss by 55%, uses recycled plastic, aerogel
The team created the mortar by replacing a portion of natural sand with a mixture of silica aerogel particles and shredded PET (polyethylene terephthalate) plastic. Silica aerogel is already ...