WJE PROJECTS
Petit Caillou Lock Structure
CLIENT |
Sealevel Construction, Inc. |
LOCATION |
Chauvin, LA |
Mass Concrete Consulting
WJE was retained to provide mass concrete consulting services for a concrete base slab. The mass concrete specifications required that the maximum temperature be less than 158°F and maximum temperature differential between the mean of all functioning center sensor temperatures to any individual surface or corner sensor be less than 35°F.
BACKGROUND
The Petit Caillou lock structure at the Boudreaux Canal will limit the amount of water traveling through the canal without hindering marine traffic. It will also prevent abnormally high tides and serve as protection during hurricanes and other storms.
SOLUTION
Using thermal analysis software, WJE modeled the temperature development due to the heat of cement hydration to predict the temperature differential between the concrete core and concrete surface. Using the results of the thermal analysis, WJE developed a mass concrete thermal control plan to reduce the risk of thermal cracking. The plan included guidelines for precooling methods, concrete placement temperature, insulation application, and installation of temperature sensors. The mass concrete thermal control plan provided by WJE was able to successfully limit the maximum core temperature and temperature differentials of the mass concrete slab.
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