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Interstate Highway System Turns 60

As the U.S. Interstate Highway System turns 60 years old, it faces increasing congestion, unprecedented levels of travel – particularly by large trucks – and insufficient funding to make needed repairs and improvements.  

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Excavator in 3-D

DSC04022ConExpo-Con/Agg 2017 and IFPE are teaming up to unveil the world’s first fully functional 3-D printed construction excavator and the first large-scale use of steel in 3-D printing, known as additive manufacturing. The excavator, which will be on display at the joint trade shows in March 2017, will bring to life how technology is transforming the construction industry in line with the show’s 2017 theme, “Imagine What’s Next.” In addition to the pre-printed excavator, show attendees will see a second excavator printing live on the show floor.

 

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Prehistoric Humans Worked in Flint Quarries

64 LastCallAn 11,000-year-old quarry where prehistoric people sourced the flint for their arrows and spearheads, as well as limestone, was identified between Jerusalem and Tel Aviv. The works provide evidence that well before prehistoric humans settled down, they were capable of manufacturing on what we can only call an industrial scale.

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Riddle Of Cement’s Structure Finally Solved

100 MIT 150After stone, concrete is the world’s most widely used construction material. Yet answers to some fundamental questions about the microscopic structure and behavior of this ubiquitous material have remained elusive.

 

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