Eggshells can be used as fertilizers, cement and tile binder and paste ingredient after grinding them finely. They contain calcium, phosphorus, potassium and sulfur which makes plants robust and vigorous.
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Ground eggshells can also be used as a reinforcing ingredient in pastes. Mixed with starch, the sticky substance can bind paper effectively. When used as a cement binder, the mixture dries easily and as tile binder, it gives a hard but smooth finish. One part white cement is mixed with every two parts ground shell.
Source: Phil. Farmer’s Journal March 1981
Hi,
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Thanks