Figure 4. SEM Coated Samples with Nano Calcium Carbonate a) Nano Calcium Carbonate Powder, b) Fresh Samples of Old Thebes Limestone Quarry, c) Coated Samples with 15% Calcium Carbonate, d) Coated Samples with 30% Nano Calcium Carbonate

From

Mechanical Properties of Thebes Limestone Treated by Nano Filler Particles

Ahmed F. Mohamed, A.F. Gelany, M.S. Abd El-sadek, Abbas M. Mansour

American Journal of Mechanical Engineering. 2019, 7(3), 138-145 doi:10.12691/ajme-7-3-4