Construction waste recycled aggregate water milled colorful paving brick and preparation method thereof
A technology of construction waste and recycled aggregate, which is applied in the field of building materials, can solve the problems of not having anti-ultraviolet radiation, occupying land resources, and low compressive strength, and achieves the effects of good water permeability, beautifying the environment, and long service life
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Embodiment 1
[0022] Preparation of water-milled colored pavement bricks from recycled aggregates from construction waste
[0023] Ingredients: fine aggregate 200kg, coarse aggregate 60kg, aggregate improver 5kg, nano-silica 30kg, polyamide 50kg, water reducing agent 0.3kg, cement 100kg, water 40kg.
[0024] The above-mentioned fine aggregate is the construction waste with a particle size of 0-5 mm obtained after the construction waste is crushed, sieved, and removed from the sundries; The construction waste with a diameter of 5-10mm, 10-20mm and 20-30mm is mixed according to the ratio of 2:3:0.6.
[0025] The above-mentioned aggregate modifier is made of attapulgite, sepiolite, diatomite and tourmaline in a ratio of 2:1:0.3:0.5; the particle size of the nano-silica is 30nm.
[0026] The above-mentioned polyamide is polyamide-6; the above-mentioned water-reducer is polycarboxylate high-efficiency water-reducer; the above-mentioned cement is Portland cement.
[0027] The preparation method...
Embodiment 2
[0032] Preparation of water-milled colored pavement bricks from recycled aggregates from construction waste
[0033] Ingredients: fine aggregate 260kg, coarse aggregate 80kg, aggregate improver 10kg, nano-silica 80kg, polyamide 70kg, water reducing agent 0.5kg, cement 140kg, water 70kg.
[0034] The above-mentioned fine aggregate is the construction waste with a particle size of 0-5 mm obtained after the construction waste is crushed, sieved, and removed from the sundries; The construction waste with a diameter of 5-10mm, 10-20mm and 20-30mm is mixed according to the ratio of 2:3:0.6.
[0035] The above-mentioned aggregate modifier is made of attapulgite, sepiolite, diatomite and tourmaline in a ratio of 2:1:0.3:0.5; the particle size of the nano-silica is 50nm.
[0036] The above-mentioned polyamide is polyamide-66; the above-mentioned water-reducer is polycarboxylate high-efficiency water-reducer; the above-mentioned cement is sulphoaluminate cement.
[0037] The preparati...
Embodiment 3
[0042] Preparation of water-milled colored pavement bricks from recycled aggregates from construction waste
[0043] Ingredients: 240kg of fine aggregate, 70kg of coarse aggregate, 8kg of aggregate improver, 80kg of nano-silica, 60kg of polyamide, 0.4kg of water reducing agent, 120kg of cement, and 60kg of water.
[0044] The above-mentioned fine aggregate is the construction waste with a particle size of 0-5 mm obtained after the construction waste is crushed, sieved, and removed from the sundries; The construction waste with a diameter of 5-10mm, 10-20mm and 20-30mm is mixed according to the ratio of 2:3:0.6.
[0045] The above-mentioned aggregate modifier is made of attapulgite, sepiolite, diatomite and tourmaline in a ratio of 2:1:0.3:0.5; the particle size of the nano-silica is 45nm.
[0046] The above-mentioned polyamide is polyamide-610; the above-mentioned water-reducer is polycarboxylate high-efficiency water-reducer; the above-mentioned cement is white cement.
[004...
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