Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method for improving activity of regenerated micro powder
The invention relates to the technical field of building materials, and discloses a preparation method for improving the activity of regenerated micro-powder, which comprises the following steps: preliminarily crushing construction waste by a universal crusher; small fragments with the size smaller than 40 mm are separated out, then powder with the size smaller than 0.16 mm is separated out from the small fragments with the size smaller than 40 mm, and the powder with the size smaller than 0.16 mm serves as initial regenerated micro powder; putting the initial micro powder into a baking oven at 150-550 DEG C, and heating for 2-5 hours; carrying out ball milling for 2-3 hours by using a ball mill to obtain regenerated micro powder; an alkaline activator is doped into the regenerated micro-powder, the doping amount is 0.5%-4.5%, and the activity of the regenerated micro-powder is improved after the regenerated micro-powder and the alkaline activator are uniformly stirred and mixed. According to the preparation method for improving the activity of the regenerated micro-powder, the activity of the regenerated micro-powder can be greatly improved by performing heat treatment on the regenerated micro-powder and performing composite excitation by adding the alkaline exciting agent, and the compressive strength and the activity index of the regenerated micro-powder treated by the method are remarkably improved.
本发明涉及建筑材料技术领域，且公开了一种提高再生微粉活性的制备方法，包括以下步骤：通过万能破碎机对建筑垃圾进行初步破碎；分离出40mm以下的小碎块，再将40mm以下的小碎块分离出0.16mm以下的粉料，0.16mm以下的粉料就作为初始再生微粉；将初始微粉置于150‑550℃的烘箱中加热2‑5h；运用球磨机对其进行球磨2‑3h，获得再生微粉；向再生微粉中掺入碱性激发剂，掺量为0.5％‑4.5％，将再生微粉和碱性激发剂搅拌混合均匀后提升再生微粉的活性。该一种提高再生微粉活性的制备方法，通过对再生微粉进行热处理和添加碱性激发剂的复合激发，能够大大提高再生微粉的活性，经过本发明方法处理过的再生微粉其抗压强度以及活性指数均有显著提高。
Preparation method for improving activity of regenerated micro powder
The invention relates to the technical field of building materials, and discloses a preparation method for improving the activity of regenerated micro-powder, which comprises the following steps: preliminarily crushing construction waste by a universal crusher; small fragments with the size smaller than 40 mm are separated out, then powder with the size smaller than 0.16 mm is separated out from the small fragments with the size smaller than 40 mm, and the powder with the size smaller than 0.16 mm serves as initial regenerated micro powder; putting the initial micro powder into a baking oven at 150-550 DEG C, and heating for 2-5 hours; carrying out ball milling for 2-3 hours by using a ball mill to obtain regenerated micro powder; an alkaline activator is doped into the regenerated micro-powder, the doping amount is 0.5%-4.5%, and the activity of the regenerated micro-powder is improved after the regenerated micro-powder and the alkaline activator are uniformly stirred and mixed. According to the preparation method for improving the activity of the regenerated micro-powder, the activity of the regenerated micro-powder can be greatly improved by performing heat treatment on the regenerated micro-powder and performing composite excitation by adding the alkaline exciting agent, and the compressive strength and the activity index of the regenerated micro-powder treated by the method are remarkably improved.
本发明涉及建筑材料技术领域，且公开了一种提高再生微粉活性的制备方法，包括以下步骤：通过万能破碎机对建筑垃圾进行初步破碎；分离出40mm以下的小碎块，再将40mm以下的小碎块分离出0.16mm以下的粉料，0.16mm以下的粉料就作为初始再生微粉；将初始微粉置于150‑550℃的烘箱中加热2‑5h；运用球磨机对其进行球磨2‑3h，获得再生微粉；向再生微粉中掺入碱性激发剂，掺量为0.5％‑4.5％，将再生微粉和碱性激发剂搅拌混合均匀后提升再生微粉的活性。该一种提高再生微粉活性的制备方法，通过对再生微粉进行热处理和添加碱性激发剂的复合激发，能够大大提高再生微粉的活性，经过本发明方法处理过的再生微粉其抗压强度以及活性指数均有显著提高。
Preparation method for improving activity of regenerated micro powder
一种提高再生微粉活性的制备方法
ZENG ZHIYONG (Autor:in)
31.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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