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Table 15 Compressive strength, tensile strength, shear strength, longitudinal wave velocity, rebound number, and Toughness Indexes tests results of backing limestone blocks Mykerinos pyramid

From: Sustainability problems of the Giza pyramids

No.D (mm)H (mm)A2 (mm2)Failure load (kN)σc (MPa)σt (MPa)Shear strength (N/mm2)Vp (km/s)(RN) rebound numberToughness Indexes (AIV test)
135.768990.313.5013.112.700.895.26259.50
237.2701034.612.1012.231.991.335.10228.80
335.269922.814.2213.282.981.464.97209.80
437.2721180.114.3012.202.111.224.67197.01
537.2721150.515.8010.791.791.113.76176.24