Additionally, it has been shown that the nominal fracture energy γ generally displays a decreasing trend with the increase of total porosity in porous cement materials and other mineral foams in an exponential fashion as (8) γ = γ 0 e − b P total where γ 0 is the energy at zero porosity.
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The sentences
The content and thickness of these interlamellar pores display an increasing trend as the initial cementitious slurries get thinner with the water‐to‐cement ratio (W/C) varying from 0.4 to 1.3.