Fig. 5
Consolidation effect of the in situ bacterial bio-treatments. a Peeling tape test (legend: Mx-treatment, blue line and diamond symbols; M-3P treatment, red line and triangle symbols; Bacterial community self-inoculation bio-treatment, green line and square symbols). Error bars show s.d. ( ± 1σ). Drilling resistance (DR) along a 1 cm depth profile following Mx-treatment (b) (average of at least six measurements per treatment; blue line), M-3P treatment (c) (average of at least six measurements per treatment; blue line), and bacterial community self-inoculation bio-treatment (d) (average of at least 6 measurements per treatment; blue line). In b–d the DR of untreated weathered calcarenite stone (average of 14 measurements; red line) is presented for comparison. Shaded areas in DR graphs show s.d. ( ± 1σ)
