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Method for preparing active micro powder by utilizing construction waste separation muck
The invention relates to the technical field of building materials, in particular to a method for preparing active micro powder by utilizing construction waste separation muck. Comprising the following steps: carrying out low-temperature drying on the construction waste separation muck; grinding the construction waste separated muck dried at low temperature until the particle size D50 is less than 0.075 mm, and adding a chemical activator in the grinding process; the method comprises the following steps: carrying out medium-low temperature activation on ground construction waste separation muck added with a chemical activator to obtain active micro powder; the temperature of medium and low temperature activation is less than 800 DEG C, and the time is less than 2h. The method provided by the invention is used for activating the construction waste separation muck, can effectively realize volcanic ash activity excitation of a complex system, and has better universality. The method is simple and convenient in process, low in temperature and remarkable in energy-saving effect. The method not only can solve the difficulty of resource utilization of the construction waste separation muck, but also can provide assistance for carbon reduction of building materials.
本发明涉及建筑材料技术领域,尤其涉及一种利用建筑垃圾分离渣土制备活性微粉的方法。包括如下步骤:将建筑垃圾分离渣土进行低温烘干;将经低温烘干后的建筑垃圾分离渣土研磨至粒径D50<0.075mm,并且在研磨过程中加入化学活化剂;将经研磨并加有化学活化剂的建筑垃圾分离渣土进行中低温活化得到活性微粉;中低温活化的温度小于800℃,时间低于2h。本发明的方法对建筑垃圾分离渣土进行活化,可有效实现复杂体系的火山灰活性激发,具有更好的普适性。该方法工艺简便、温度低,节能效果显著。该方法既可解决建筑垃圾分离渣土资源化利用困境,也可为建材减碳提供助力。
Method for preparing active micro powder by utilizing construction waste separation muck
The invention relates to the technical field of building materials, in particular to a method for preparing active micro powder by utilizing construction waste separation muck. Comprising the following steps: carrying out low-temperature drying on the construction waste separation muck; grinding the construction waste separated muck dried at low temperature until the particle size D50 is less than 0.075 mm, and adding a chemical activator in the grinding process; the method comprises the following steps: carrying out medium-low temperature activation on ground construction waste separation muck added with a chemical activator to obtain active micro powder; the temperature of medium and low temperature activation is less than 800 DEG C, and the time is less than 2h. The method provided by the invention is used for activating the construction waste separation muck, can effectively realize volcanic ash activity excitation of a complex system, and has better universality. The method is simple and convenient in process, low in temperature and remarkable in energy-saving effect. The method not only can solve the difficulty of resource utilization of the construction waste separation muck, but also can provide assistance for carbon reduction of building materials.
本发明涉及建筑材料技术领域,尤其涉及一种利用建筑垃圾分离渣土制备活性微粉的方法。包括如下步骤:将建筑垃圾分离渣土进行低温烘干;将经低温烘干后的建筑垃圾分离渣土研磨至粒径D50<0.075mm,并且在研磨过程中加入化学活化剂;将经研磨并加有化学活化剂的建筑垃圾分离渣土进行中低温活化得到活性微粉;中低温活化的温度小于800℃,时间低于2h。本发明的方法对建筑垃圾分离渣土进行活化,可有效实现复杂体系的火山灰活性激发,具有更好的普适性。该方法工艺简便、温度低,节能效果显著。该方法既可解决建筑垃圾分离渣土资源化利用困境,也可为建材减碳提供助力。
Method for preparing active micro powder by utilizing construction waste separation muck
一种利用建筑垃圾分离渣土制备活性微粉的方法
QIU JUNFU (Autor:in) / ZHANG YINXIANG (Autor:in) / WANG ZHAOJIA (Autor:in) / ZHANG RUIFENG (Autor:in) / WANG ZHENGHUA (Autor:in)
12.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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