WJE PROJECTS

TMC3 Campus

 
CLIENT
Vaughn Construction
LOCATION
Houston, TX

Mass Concrete Consulting

The client retained WJE to provide mass concrete consulting services for a 9,000-cubic-yard detention tank mat foundation. The mass concrete specifications required that the maximum temperature be less than 160°F and that the between center and surface of placement not exceed 35°F.


BACKGROUND

TMC3 is a campus that will unite medicine, science, and academia. The visionary thirty-seven-acre campus will include shared and proprietary research centers, multidisciplinary laboratories, healthcare institutions, a hotel and conference center, a residential tower, retail establishments, restaurants, and a double-helix green space.

SOLUTION

Using thermal analysis software, WJE modeled the temperature development due to the heat of cement hydration to predict the maximum temperature of the concrete core and the temperature differential between the concrete core and the concrete surface. WJE provided recommendations for a performance-based maximum temperature limit.  Based on a review and analysis of the project concrete mixture design, the WJE team developed a project-specific thermal control plan which allowed maximum concrete temperature above
160°F.

Using the results of the thermal analysis, WJE engineers then 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 mat foundation.

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