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Geothermal Energy Cover Image
Fig. 1 | Geothermal Energy

Fig. 1

From: Doped bentonitic grouts for implementing performances of low-enthalpy geothermal systems

Fig. 1

Diagram reporting the flexural (Rf) and uniaxial compressive (Rc) strengths at the fracture point for the starting and doped (+ 5 and + 10% of graphite powder) bentonitic grouts as a function of the load applied to the sample (Ff and Fc). Symbols are as follows: diamonds for the starting grout; squares for the grout + 5% of graphite powder; triangles for the grout + 10% of graphite powder. Open symbols are for tests at 14 days, filled symbols for those at 28 days

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