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Table 2 Compressive strength of restoration mortars and stone

From: Specialist ‘restoration mortars’ for stone elements: a comparison of the physical properties of two stone repair materials

    Compressive strength (MPa)  
  7 days 28 days 56 days 91 days 182 days
Lithomex 6.40 (0.96) 7.92 (0.10) 7.67 (0.54) 8.32 (0.70) 9.19 (1.11)
Conserv 0.47 (0.20) 1.09 (0.14) 1.36 (0.22) 0.97 (0.15) 1.01 (0.14)
Stanton Moor Sandstone 71.66*
Locharbriggs Sandstone 54.45*
  1. Values for restoration mortars are given at different curing times; values in brackets indicate standard deviation. * denotes manufacturer’s data (Stancliffe Stone, 2010a; 2010b) [39, 40].