The invention relates to a
Portland cement foaming heat preservation board or a block and a manufacturing method thereof. The
Portland cement foaming heat preservation board or the block is capable of strengthening heat insulation and heat preservation performances. The
Portland cement foaming heat preservation board or the block is prepared by raw materials of, by weight, 99 parts of Portland
cement, 5 parts of saturated aluminum
sulfate, 1 part of water reducing agents and 0.5-1 part of
hydrogen peroxide, the Portland
cement, the saturated aluminum
sulfate and the water reducing agents are proportionally taken and then placed in a mixer, water is added into the mixer to be mixed with the raw materials and then stirred for 5-10 minutes to prepare a foaming
cement slurry, the water is added according to the weight ratio of the water to the raw materials of 100: (60-80), the
hydrogen peroxide is proportionally taken, water is added to the
hydrogen peroxide, the
hydrogen peroxide and the water are subjected to pre-foaming to manufacture foams by means of a foaming
machine, the water is added according to the weight ratio of the
hydrogen peroxide to the water of 0.01: 1, the foams and the foaming
cement slurry are placed into a foam stirrer for even stirring, the mixture is injected to a mold for solidification molding, and the mold is removed to obtain the density Portland cement foaming heat preservation board or the block. Portland cement enables a solidified board to form a foaming structure under the action of the
hydrogen peroxide so that weight of walls is reduced, and the heat insulation and heat preservation performances are strengthened.