Dry damaged cement is petrified so it looks like new is how to use dry cement, how to smooth soften dry cement so it can be reused, how to treat cement so it doesn't dry quickly and clumps and how to wrap cement so it doesn't dry anymore, cement that is of poor quality due to conditions dry and lumpy petrified can be repaired with a mixture of water and wood glue, so that the resulting cement mixture sticks together as strong as new cement that hasn't clumped, this method is only for the purposes of creating cement art and not for construction of building houses. may be useful