A large amount of fly ash concrete and its preparation method
A fly ash and concrete technology, applied in the field of concrete and civil construction materials, can solve the problems of low strength and low chemical activity, and achieve the effects of improving strength, promoting dispersion and reaction, and enhancing pozzolanic effect.
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Embodiment 1
[0028] The preparation method of the modified reinforcing agent is as follows: (1) dry and dehydrate the mixture of 6.67kg bentonite and 3.33kg attapulgite at 150 degrees Celsius, and then calcinate and activate at 400 degrees Celsius for 6 hours; (2) mix the bentonite and attapulgite Soil mixture is uniformly mixed with 2kg sodium sulfate and 2kg calcium hydroxide powder; (3) 1.12kg triethanolamine maleate and 1.12kg calcium lignosulfonate are dissolved in 3.36 g of water to form a solution, and the Add the solution evenly into the mixture of sodium sulfate, calcium hydroxide and soil, continue to stir for 10 minutes, and then leave it to stand for 6 hours to make a multifunctional modified reinforcing agent for large-volume fly ash concrete.
[0029] Add 140kg PO 42.5 ordinary Portland cement, 265kg secondary fly ash, 45kg slag powder, 50kg modified reinforcing agent, 1010kg gravel, 825kg river sand into the mixer, dry mix for 30min until uniform; add 160kg water into the mix...
Embodiment 2
[0031] The preparation method of the modified reinforcing agent is as follows: (1) dry and dehydrate the mixture of 5.00 kg bentonite and 5.00 kg attapulgite at 150 degrees Celsius, and then calcinate and activate at 600 degrees Celsius for 3 hours; (2) mix the bentonite and attapulgite Soil mixture is uniformly mixed with 2kg sodium sulfate and 2kg calcium hydroxide powder; (3) 1.12kg triethanolamine maleate and 1.12kg calcium lignosulfonate are dissolved in 3.36 g of water to form a solution, and the Add the solution evenly into the mixture of sodium sulfate, calcium hydroxide and soil, continue to stir for 10 minutes, and then leave it to stand for 9 hours to make a multifunctional modified reinforcing agent for large-volume fly ash concrete.
[0032] Add 170kg PO 42.5 ordinary Portland cement, 215kg secondary fly ash, 55kg slag powder, 45kg modified reinforcing agent, 1060kg gravel, 800kg river sand into the mixer, dry mix for 35min until uniform; add 170kg water into the m...
Embodiment 3
[0034] The preparation method of the modified reinforcing agent is as follows: (1) dry and dehydrate the mixture of 3.33 kg bentonite and 6.67 kg attapulgite at 150 degrees Celsius, and then calcinate and activate at 800 degrees Celsius for 2 hours; (2) mix the bentonite and attapulgite Soil mixture is uniformly mixed with 2kg sodium sulfate and 2kg calcium hydroxide powder; (3) 1.12kg triethanolamine maleate and 1.12kg calcium lignosulfonate are dissolved in 3.36 g of water to form a solution, and the Add the solution evenly into the mixture of sodium sulfate, calcium hydroxide and soil, continue to stir for 10 minutes, and then leave it to stand for 6 hours to make a multifunctional modified reinforcing agent for large-volume fly ash concrete.
[0035] Add 190kg PO 42.5 ordinary Portland cement, 195kg secondary fly ash, 65kg slag powder, 40kg modified reinforcing agent, 1100kg gravel, 750kg river sand into the mixer, dry mix for 35min until uniform; add 170kg water and 4.5 k...
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