MacKenzie, Kenneth J. D. and Smith, Mark E. and Wong, Alan and Hanna, John V. and Barry, Bernard and Barsoum, Michel W. (2011) Were the casing stones of Senefru's Bent Pyramid in Dahshour cast or carved? Materials Letters, 65 (2). pp. 350-352. ISSN 1873-4979
Full text not available from this repository.Abstract
A comparison was made of the solid-state 29Si, 27Al and 43Ca MAS NMR spectra of the outer casing stone from Snefru's Bent Pyramid in Dahshour, Egypt, with two quarry limestones from the area. The NMR results suggest that the casing stones consist of limestone grains from the Tura quarry, cemented with an amorphous calcium-silicate gel formed by human intervention, by the addition of extra silica, possibly diatomaceous earth, from the Fayium area.