This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Novel Experiments on Cement Yield Concrete Results . Schematic drawing of nanoscale calcium silicate hydrate CSH particles in cement showing the multiple roles played by water as defined in the NIST experiments Solid red areas are calcium silicate pebbled areas in between show the water physically bound between the layers to form