DMS News‎ > ‎

State Science Fair - Brooke-destinee Lockwood!

posted Apr 16, 2014, 10:13 AM by DMS DeKalb Middle School   [ updated Apr 16, 2014, 10:29 AM ]

Brooke-destinee’s  project was called The Concrete Conclusion. She was trying to see if recycled aggregates could be stronger more cost effective and more lightweight than natural resources.  Affregates is the left over material or by-product that you can get at a steel mill or foundry.  She also wanted to see if the amount of hydration or how much water is being used mattered for both recycled aggregates and natural resource aggregates. Brooke-destinee tested a total of 30 different mixtures and over 300 tests at 7, 14, 21, and 28 day curing marks. She found that recycled aggregates are a good substitute for natural resources. They are in fact stronger, and more $4.00 more cost affective. The amount of hydration does matter for both recycled and natural resource aggregates. However, the recycled aggregates are on average 23% heavier, making 3 out of my 4 hypothesis correct.

At the local competition Brooke-destinee received First place and a special award.  At the regional competition she received First place and seven special awards.  At the state level Brooke-destinee received first place and a special award.  She was also asked by one of the recruiters for Purdue asked to come to Purdue the following weekend for a private tour of all of the labs.