Show concrete silos can be put into good condition loucrete Cou crete silos which have softened and sloughed off on the inside due to the use of too little cement or to mistakes in mixing or handling the concrete can be repaired by chipping off the ilie defective material with hammer and cold chisel soaking the concrete thoroughly several times crushing with a cream like grouting of cement and water then plastering with rich cement mortar if the defective concrete extends ciatur clear through the silo walls says a writer in the montreal herald the entire wall can be replaced by cutten cutting out a section at a time and replacing it with good material when these have set thoroughly the remaining parts can be replaced in the same way ray leakage of air through silo walls wall s is a common cause of moldy silage hollow tile concrete block and concrete stave silos are often coated with a cement and water wash with the idea of stopping such air leaks but this does little good since any cracks will open up again as soon as the pressure comes on the walls what Is needed Is a more elastic coating which will stretch slightly |