Freeway

Third Contest Winner… Next Quiz Question!

We have a winner for our third quiz question!  Robert Mullen of Brutoco Engineering & Construction – a heavy/civil engineering and utility construction firm headquartered in Fontana California – was selected at random from the 12 correct responders to last week’s coal ash question.

But before we get to his correct response, here is the contest question for this week:  What temple to all the gods of ancient Rome is a nearly 1900-year-old example of the durability of concrete made with ash?

If you think you know the answer, e-mail it along with your name and contact information to info@recyclingfirst.org.

Last week’s question was: What is the name of the world’s tallest building – which happened to use coal fly ash in its construction?

The correct answer:  The Khalifa Tower in Dubai.  At 2,717 feet, it is the tallest manmade structure ever built.  The building’s concrete mixtures used fly ash at a variety of cement replacement rates – from 13 percent in the superstructure to 25 percent in the foundation and 40 percent in the piled-raft mix.

Congratulations, Robert!



Posted by: on: Feb 26, 2010 @ 04:37