Air-added brick and preparation method thereof
A technology of aerated bricks and steam curing, which is applied in the field of aerated bricks, can solve the problems such as the mechanical strength of aerated bricks needs to be improved, and achieve the effect of excellent mechanical strength, simple method, and easy-to-obtain raw materials
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[0016] Example 1
[0017] 100g Portland cement, 6g fly ash, 3g gypsum, 6g aluminum powder paste, 3g silicon dioxide, 4g magnesium oxide and 250g water are mixed to form slurry M; the slurry M is poured and steam pre-oxygenated (steam pre-oxygenation) Oxygen molding is kept in a steam environment at 40°C for 2 hours) to obtain aerated brick body N; cut the aerated brick body N to form aerated bricks, and perform steam curing on the aerated bricks (steam curing The temperature is 140°C, the time is 12h, and the pressure is 1.5Mpa) to obtain aerated bricks.
Example Embodiment
[0018] Example 2
[0019] 100g Portland cement, 7g fly ash, 4g gypsum, 12g aluminum powder paste, 5g silicon dioxide, 6g magnesium oxide and 350g water are mixed to form slurry M; the slurry M is poured and steam pre-oxygenated (steam pre-oxygenation) Oxygen molding is maintained in a steam environment at 60°C for 4 hours) to obtain aerated brick body N; the aerated brick body N is cut to form aerated bricks, and the aerated bricks are steam cured (steam-cured) The temperature is 150℃, the time is 24h, and the pressure is 2Mpa) to obtain aerated bricks.
Example Embodiment
[0020] Example 3
[0021] 100g Portland cement, 6.5g fly ash, 3.5g gypsum, 8g aluminum powder paste, 4g silica, 5g magnesium oxide and 300g water are mixed to form slurry M; the slurry M is poured and steam pre-oxygenated ( Steam pre-oxygen molding is to keep in a 50 ℃ steam environment for 3 hours) to obtain aerated brick body N; cut the aerated brick body N to form aerated bricks, and steam curing the aerated bricks (steam The curing temperature is 145°C, the time is 16h, and the pressure is 1.8Mpa) to obtain aerated bricks.
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