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Table 14 Modulus of Elasticity backing limestone blocks, Chephren pyramid

From: Sustainability problems of the Giza pyramids

No.Strain at 0.5 Mpa (×10−6)Ultimate Strength fult (MPa)Strain at fult/3 (×10−6)Modulus of Elasticity (GPa)Remarks
11011.9234012.600 
2912.4235913.892 
3912.3134814.980 
  1. So the average value for Modulus of Elasticity = 13.82 GPa