A kind of fire-free permeable brick and its preparation method
A technology of permeable bricks and cement, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of wasting coal resources, destroying land, increasing preparation costs, etc., to save coal resources and improve slip resistance , the effect of alleviating urban drainage pressure and heat island effect
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Embodiment 1
[0018] Weigh the same amount of NaOH, Na 2 SiO 3 9H 2 A total of 18g of O was put into a beaker, added an appropriate amount of water, and stirred to obtain completely dissolved; according to the mass ratio of different particle sizes 30 mesh: 40 mesh: 50=1:1:1, weigh 72g of desulfurization slag and 90g of cement.
[0019] Put the desulfurization slag and cement into the cement slurry mixer container and stir evenly, add fully dissolved NaOH, Na 2 SiO 3 9H 2 O solution, continue to stir evenly, so that the desulfurization slag, cement and solution are evenly mixed. A cuboid experimental brick of 94*46*22mm is made by compression molding. The formed experimental bricks were cured for 28 days in a humid environment and at room temperature. Test the water permeability and compressive performance of the experimental bricks. The test results show that the compressive strength is 41.09MPa and the water permeability is 0.0156cm / s.
Embodiment 2
[0021] Weigh the same amount of NaOH, Na 2 SiO 3 9H 2 A total of 12.6g of O was put into a beaker, added an appropriate amount of water, and stirred to obtain completely dissolved; according to the mass ratio of different particle sizes 30 mesh: 40 mesh: 50=4:1:1, weigh 78g of desulfurization slag and 90g of cement.
[0022] Put the desulfurization slag and cement into the cement slurry mixer container and stir evenly, add fully dissolved NaOH, Na 2 SiO 3 9H 2 O solution, continue to stir evenly, so that the desulfurization slag, cement and solution are evenly mixed. A cuboid experimental brick of 94*46*22mm is made by compression molding. The formed experimental bricks were cured for 32 days in a humid environment and at room temperature. Test the water permeability and compressive performance of the experimental bricks. The test results show that the compressive strength is 40.68MPa and the water permeability is 0.0261cm / s.
Embodiment 3
[0024] Weigh the same amount of NaOH, Na 2 SiO 3 9H 2 A total of 7.5g of O was put into a beaker, added an appropriate amount of water, and stirred to obtain completely dissolved; according to the mass ratio of different particle sizes 30 mesh: 40 mesh: 50=3:1:1, weigh 83g of desulfurization slag and 90g of cement.
[0025] Put the desulfurization slag and cement into the cement slurry mixer container and stir evenly, add fully dissolved NaOH, Na 2 SiO 3 9H 2 O solution, continue to stir evenly, so that the desulfurization slag, cement and solution are evenly mixed. A cuboid experimental brick of 94*46*22mm is made by compression molding. The formed experimental bricks were cured for 30 days in a humid environment and at room temperature. Test the water permeability and compressive performance of the experimental bricks. The test results show that the compressive strength is 40.59MPa and the water permeability is 0.0192cm / s.
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