Preparation method of waste brick aggregate
A technology of aggregates and granules, applied in solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of reduced compressive strength of environmentally friendly bricks, insufficient compressive strength of concrete, and inability to meet application requirements, etc. Achieve the effect of improving compressive strength and compressive strength
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[0038] Take abandoned ordinary house building bricks, crush the building waste bricks with a jaw crusher, and then sieve out waste brick particles with a particle size of 2-20mm, dry the particles at a temperature of 110°C for 1.2 hours, and then The dried waste brick particles are immersed in the ethanol solution of polyvinylpyrrolidone (the concentration of polyvinylpyrrolidone is 1.5wt%), stirred at a speed of 20rpm, and the stirring time is 1.5h, then the soaked waste brick particles are taken out, After drying, the waste brick aggregate after impregnation is placed in a wire mesh hanging basket, placed in the prepared cement paste (the water-to-binder ratio of the cement paste is 1.3), taken out by shaking and shaking for 3 minutes, and cured at room temperature for 3 days Test for crush strength. The crushing strength is tested according to GB / T 14685-2011. After testing, the compressive strength of the test block is 11.46MPa.
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