Floating-bead containing ageing-resistant hollow brick and preparation technology thereof
A technology of hollow brick and bead resistance, which is applied in the field of hollow brick manufacturing, can solve the problems of short service life, low compressive strength, high energy consumption, etc., and achieve the effects of reducing production cost, strong aging resistance, and simplifying the preparation process
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Embodiment 1
[0027] An anti-aging hollow brick containing floating beads, the following raw materials are prepared: 80kg of composite Portland cement, 40kg of blast furnace slag, 20kg of purple sand shale, 10kg of floating beads, 10kg of modified quartz powder, 5kg of silicon carbide fiber, 2kg of calcium stearate, Anti-cracking agent 1kg, early strength agent 1kg, water reducing agent 1kg, water-repellent agent 1kg;
[0028] The preparation technology of described modified quartz powder comprises the following steps:
[0029] 1) Weigh the quartz powder and preheat and dry it in a drying oven at 85°C for 1 hour, add 25% ammonia solution accounting for 8% by mass of the quartz powder, stir at 65°C for 2 hours, filter out the quartz powder, and dry;
[0030] 2) Add 3% coupling agent by mass to the dried quartz powder, stir at 55° C. for 3 hours, and filter out the quartz powder;
[0031] 3) Finally, transport the filtered quartz powder into a vacuum drying oven, dry and heat at 90° C. for 2...
Embodiment 2
[0039] An anti-aging hollow brick containing floating beads, the following raw materials are prepared: 90kg of composite Portland cement, 45kg of blast furnace slag, 25kg of purple sand shale, 15kg of floating beads, 15kg of modified quartz powder, 10kg of silicon carbide fiber, 4kg of calcium stearate, Anti-cracking agent 1kg, early strength agent 1kg, water reducing agent 1kg, water-repellent agent 1kg;
[0040] The preparation technology of described modified quartz powder comprises the following steps:
[0041] 1) Weigh the quartz powder and preheat and dry it in a drying oven at 95°C for 1.2 hours, add 25% ammonia solution accounting for 9% by mass of the quartz powder, stir at 68°C for 2.2 hours, filter out the quartz powder, and dry;
[0042] 2) Add 3% coupling agent by mass to the dried quartz powder, stir at 58° C. for 3.2 hours, and filter out the quartz powder;
[0043] 3) Finally, transport the filtered quartz powder into a vacuum drying oven, dry and heat at 92° ...
Embodiment 3
[0051]An anti-aging hollow brick containing floating beads, the following raw materials are prepared: 100kg of composite Portland cement, 50kg of blast furnace slag, 30kg of purple sand shale, 20kg of floating beads, 20kg of modified quartz powder, 15kg of silicon carbide fiber, 6kg of calcium stearate, Anti-cracking agent 3kg, early strength agent 3kg, water reducing agent 2kg, water-repellent agent 2kg;
[0052] The preparation technology of described modified quartz powder comprises the following steps:
[0053] 1) Weigh the quartz powder and preheat and dry it in a drying oven at 120°C for 1.5 hours, add 25% ammonia solution accounting for 10% by mass of the quartz powder, stir at 70°C for 2.5 hours, filter out the quartz powder, and dry;
[0054] 2) Add 4% coupling agent by mass to the dried quartz powder, stir at 60° C. for 3.5 hours, and filter out the quartz powder;
[0055] 3) Finally, transport the filtered quartz powder into a vacuum drying oven, dry and heat at 95...
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