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Upscaling the elastic stiffness of foam concrete as a three-phase composite material
2018
Cement and Concrete Research
The stiffness of foam concrete depends primarily on the added porosity. Nevertheless, by performing 3D elastic numerical simulations on artificial unit cells in the frame of periodic homogenization, it is shown that describing foam concrete as a porous material is not sufficient to explain the experimental measurements of the Young modulus for added porosity higher than 40%. Indeed, introducing sand as a third phase enables to recover accurate estimates of the Young Modulus. Furthermore, for
doi:10.1016/j.cemconres.2018.04.021
fatcat:7h2an3ukuvby7df7snxr24t3tq