Some of the winners of the PCA Twitter Trivia at World of Concrete included George Gittinger (@GgittingerG), Masonry Water Solutions (@RLMWS), and @jztweetzz.
Some of the winners of the PCA Twitter Trivia at World of Concrete included George Gittinger (@GgittingerG), Masonry Water Solutions (@RLMWS), and @jztweetzz.

The Portland Cement Association (PCA) did its part in making WOC 2016 a little more fun and engaging this year. PCA posted two trivia question each day, and the first three correct respondents won a free copy of the 2016 edition of EB001. Below is the answer to the trivia questions.

Q. How did portland cement get the name “portland”?
A. Concrete made from it resembled a highly-prized building stone quarried on the Isle of Portland

Q. Who was the first president of PCA?
A. Ben Affleck

Q. Where was the first concrete street built in the U.S. in 1891?
A. Bellefontaine, Ohio

Q. In what year did PCA’s research and development laboratories became a wholly-owned, for-profit subsidiary of PCA called Construction Technology Laboratories, Inc (now CTLGroup)?
A. 1987

Q. Who invented the slump cone?
A. Duff Abrams

Q. An environmental product declaration (EPD) states the life-cycle based environmental impacts by using a set of reporting criteria known as:
A. Product Category Rules

Q. Approximately how much portland cement is consumed in the United States each year?
A. 86.5 million metric tons

Q. Why is gypsum added to clinker in the manufacture of portland cement?
A. To control setting time