Lightweight high-strength concrete and preparation method thereof
A high-strength, concrete technology, applied in the field of building materials, can solve problems such as broken, micro-cracks, and bulky, and achieve good strength and improved technical effects
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[0036] Example 1
[0037] A lightweight high-strength concrete, including the following parts by weight of raw materials: 100 parts of sea sand, 40 parts of cement, 20 parts of modified fly ash, 20 parts of modified sepiolite, 30 parts of water, 5 parts of silane coupling Agent, 20 parts of polyethyleneimine aqueous solution, 20 parts of peach gum solution, 20 parts of modified fiber.
[0038] The cement is sulfate cement.
[0039] The silane coupling agent is KH-550.
[0040] The preparation steps of the lightweight high-strength concrete are as follows:
[0041] (1) In parts by weight, take 100 parts of fly ash and 50 parts of deionized water in turn, put the fly ash and deionized water in the autoclave, and then pour into the reactor at a rate of 8 mL / min Liquid nitrogen, until the reactor pressure reaches 2MPa, hold the pressure ultrasonic treatment for 20 minutes, open the reactor discharge valve to spray the material into the collecting barrel, then transfer the material in the ...
Example Embodiment
[0046] Example 2
[0047] A light-weight high-strength concrete, comprising the following parts by weight of raw materials: 100 parts of sea sand, 40 parts of cement, 20 parts of fly ash, 20 parts of modified sepiolite, 30 parts of water, 5 parts of silane coupling agent, 20 parts of polyethyleneimine aqueous solution, 20 parts of peach gum solution, 20 parts of modified fiber.
[0048] The cement is sulfate cement.
[0049] The silane coupling agent is KH-550.
[0050] The preparation steps of the lightweight high-strength concrete are as follows:
[0051] (1) Take 20 parts of sepiolite, 100 parts of water, 3 parts of Pasteurella, 5 parts of urea, and 5 parts of magnesium sulfate in parts by weight, mix the sepiolite with water, and add pasteurite Bacillus, urea and magnesium nitrate were placed in a mixing kettle, and stirred and mixed for 60 minutes at a speed of 600r / min to obtain a mixed slurry. Then the mixed slurry was placed in a rotary evaporator at a temperature of 70°C, Af...
Example Embodiment
[0055] Example 3
[0056] A kind of lightweight high-strength concrete, including the following parts by weight of raw materials: 100 parts of sea sand, 40 parts of cement, 20 parts of modified fly ash, 20 parts of sepiolite, 30 parts of water, 5 parts of silane coupling agent, 20 parts of polyethyleneimine aqueous solution, 20 parts of peach gum solution, 20 parts of modified fiber.
[0057] The cement is sulfate cement.
[0058] The silane coupling agent is KH-550.
[0059] The preparation steps of the lightweight high-strength concrete are as follows:
[0060] (1) In parts by weight, take 100 parts of fly ash and 50 parts of deionized water in turn, put the fly ash and deionized water in the autoclave, and then pour into the reactor at a rate of 8 mL / min Liquid nitrogen, until the reactor pressure reaches 2MPa, hold the pressure ultrasonic treatment for 20 minutes, open the reactor discharge valve to spray the material into the collecting barrel, then transfer the material in the b...
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