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What is Mass Concrete?
What is Mass Concrete?
American Concrete Institute (ACI) defines Mass Concrete as “Any volume of concrete with dimensions large enough to require that measures be taken to cope with the generation of heat from the hydration of cement and attendant volume change to minimize cracking”. In Mass Concrete structures, the temperature increment due to hydration can be extremely high. At the same time, the exterior surfaces release heat rapidly; this phenomenon causes large temperature gradients and increases the cracking risk.
At Concretethrem, the goal is to provide you with tools to better understand how to prevent thermal stresses on any type of mass concrete structures.
At Concretethrem, the goal is to provide you with tools to better understand how to prevent thermal stresses on any type of mass concrete structures.
What is Thermal Cracking?
What is Thermal Cracking?
When the thermal stresses exceed the concrete’s tensile strength, cracking is highly possible. These cracks can reduce the durability of the concrete structures and lead to the corrosion of rebars. To prevent these cracks from happening, a thorough understanding of material properties and thermal boundary conditions, such as ambient temperature, insulation, and others, is required. At concretetherm, a multi-scale hydration material model is provided to predict early-age heat of hydration, adiabatic temperature rise, compressive strength, and elastic modulus. Alongside, a tool is generated to provide scripts for the users to quickly generate transient thermal and static stress analysis models for different bridge substructures.
When the thermal stresses exceed the concrete’s tensile strength, cracking is highly possible. These cracks can reduce the durability of the concrete structures and lead to the corrosion of rebars. To prevent these cracks from happening, a thorough understanding of material properties and thermal boundary conditions, such as ambient temperature, insulation, and others, is required. At concretetherm, a multi-scale hydration material model is provided to predict early-age heat of hydration, adiabatic temperature rise, compressive strength, and elastic modulus. Alongside, a tool is generated to provide scripts for the users to quickly generate transient thermal and static stress analysis models for different bridge substructures.
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