Fig. 2: Pore structure of LLST.
From: Nature-inspired hierarchical building materials with low CO2 emission and superior performance

a Spatial distribution of micropores in LLST-1 obtained by X-ray Computed Tomography (X-CT), where different pore sizes were labeled with different colors. b, c Size distribution and cumulative volume of nanopores detected by Mercury intrusion porosimetry (MIP). d Schematic hierarchical micro/nanoporous structure. LLST-1, LLST-2, LLST-3, and LLST-4 corresponded to LLST with w/c of 2, 1, 0.67, and 0.5, respectively. Ref. represented pure cement with a w/c ratio of 0.5.