Mud-containing concrete and preparation method thereof
A technology of concrete and silt, applied in the field of concrete, can solve problems such as ecological damage and impact on the ecological environment, and achieve the effects of reducing consumption, reducing production costs, large market promotion value and application prospects
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Embodiment 1
[0040] A method for preparing concrete containing silt, comprising the following steps:
[0041] a. Weigh by mass percentage: 15% cement, 20% sludge, 3% fly ash, 40% basalt gravel, 15% river sand, 0.09% polypropylene fiber, 0.25% water reducer, 3% nano reinforcement , the balance is water;
[0042] b. Add the water reducing agent into the water and stir for 5 minutes at a speed of 300r / min and mix evenly to obtain a mixed solution; add cement, silt, fly ash, basalt gravel, river sand, polypropylene fiber, and nano-reinforcing agent into the concrete mixer Stir at a speed of 90r / min for 2 minutes to mix evenly, then add the mixture, and continue to stir at a speed of 90r / min for 2 minutes.
[0043] The cement is Portland cement.
[0044] The silt is river bottom silt.
[0045] The grain size of the basalt gravel is 6mm.
[0046] The water reducer is a polycarboxylate water reducer.
[0047] The nano reinforcement is modified nano mesoporous silica.
[0048] The modified n...
Embodiment 2
[0051] A method for preparing concrete containing silt, comprising the following steps:
[0052] a. Heat the sludge to 95°C for 15 minutes, then add 0.5% zinc oxide by weight of the sludge, and mix at a speed of 900r / min for 15 minutes to obtain pretreated sludge;
[0053] b. Weighing by mass percentage: 15% cement, 20% pretreated sludge, 3% fly ash, 40% basalt crushed stone, 15% river sand, 0.09% polypropylene fiber, 0.25% water reducer, nano reinforcement 3%, the balance is water;
[0054] c. Add the water reducer to the water and stir for 5 minutes at a speed of 300r / min to mix evenly to obtain a mixed solution; add cement, pretreated sludge, fly ash, basalt gravel, river sand, polypropylene fiber, and nano-reinforcing agent to the concrete Stir in a mixer at a speed of 90r / min for 2 minutes to mix evenly, then add the mixture, and continue to stir at a speed of 90r / min for 2 minutes.
[0055] The cement is Portland cement.
[0056] The silt is river bottom silt.
[005...
Embodiment 3
[0063] A method for preparing concrete containing silt, comprising the following steps:
[0064] a. Heat the sludge to 95°C and keep it warm for 15 minutes, then mix it at a speed of 900r / min for 15 minutes to obtain pretreated sludge;
[0065] b. Weighing by mass percentage: 15% cement, 20% pretreated sludge, 3% fly ash, 40% basalt crushed stone, 15% river sand, 0.09% polypropylene fiber, 0.25% water reducer, nano reinforcement 3%, the balance is water;
[0066] c. Add the water reducer to the water and stir for 5 minutes at a speed of 300r / min to mix evenly to obtain a mixed solution; add cement, pretreated sludge, fly ash, basalt gravel, river sand, polypropylene fiber, and nano-reinforcing agent to the concrete Stir in a mixer at a speed of 90r / min for 2 minutes to mix evenly, then add the mixture, and continue to stir at a speed of 90r / min for 2 minutes.
[0067] The cement is Portland cement.
[0068] The silt is river bottom silt.
[0069] The grain size of the basa...
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