Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled concrete micro-powder and preparation method thereof
The invention discloses recycled concrete micro-powder and a preparation method thereof, belonging to the technical field of building materials. According to main points of a technical scheme in the invention, the preparation method comprises the following steps: S1, crushing waste concrete blocks, and selecting 100 parts by weight of recycled powder with a particle size of less than 0.16 mm; S2,subjecting the recycled powder in the step S1 to secondary crushing for 18-32 min, putting the finally obtained powder in a container, and adding water into the container to form a suspension liquid;S3, adding 1-5 parts by weight of glass powder and 15-28 parts by weight of an excitation liquid into the step S2, and carrying out stirring for a reaction for 50-70 minutes; S4, aging a substance obtained in the step S3 for 15-20 hours, and then carrying out drying; and S5, calcining a substance dried in the step S4 for 1-1.5 hours at a temperature of 680-760 DEG C to obtain the recycled concretemicro-powder. According to the invention, the effect of improving the activity of the recycled micro-powder is achieved.
本发明公开了一种混凝土再生微粉及其制备方法，属于建筑材料技术领域，其技术方案要点是包括如下步骤：S1：将废弃混凝土块进行破碎，按重量份选择粒径小于0.16mm的再生粉末100份；S2：将步骤S1中的再生粉末进行二次粉碎18min‑32min，并将最后得到的粉末置于容器中，在容器中加入水，形成悬浮液；S3：向步骤S2中加入重量份的玻璃粉1‑5份、激发液15‑28份，搅拌反应50min‑70min；S4：将步骤S3得到的物质陈化15h‑20h，后进行干燥；S5：将步骤S4干燥后的物质在温度为680℃‑760℃的条件下煅烧1h‑1.5h，得到混凝土再生微粉，达到提高再生微粉的活性的效果。
Recycled concrete micro-powder and preparation method thereof
The invention discloses recycled concrete micro-powder and a preparation method thereof, belonging to the technical field of building materials. According to main points of a technical scheme in the invention, the preparation method comprises the following steps: S1, crushing waste concrete blocks, and selecting 100 parts by weight of recycled powder with a particle size of less than 0.16 mm; S2,subjecting the recycled powder in the step S1 to secondary crushing for 18-32 min, putting the finally obtained powder in a container, and adding water into the container to form a suspension liquid;S3, adding 1-5 parts by weight of glass powder and 15-28 parts by weight of an excitation liquid into the step S2, and carrying out stirring for a reaction for 50-70 minutes; S4, aging a substance obtained in the step S3 for 15-20 hours, and then carrying out drying; and S5, calcining a substance dried in the step S4 for 1-1.5 hours at a temperature of 680-760 DEG C to obtain the recycled concretemicro-powder. According to the invention, the effect of improving the activity of the recycled micro-powder is achieved.
本发明公开了一种混凝土再生微粉及其制备方法，属于建筑材料技术领域，其技术方案要点是包括如下步骤：S1：将废弃混凝土块进行破碎，按重量份选择粒径小于0.16mm的再生粉末100份；S2：将步骤S1中的再生粉末进行二次粉碎18min‑32min，并将最后得到的粉末置于容器中，在容器中加入水，形成悬浮液；S3：向步骤S2中加入重量份的玻璃粉1‑5份、激发液15‑28份，搅拌反应50min‑70min；S4：将步骤S3得到的物质陈化15h‑20h，后进行干燥；S5：将步骤S4干燥后的物质在温度为680℃‑760℃的条件下煅烧1h‑1.5h，得到混凝土再生微粉，达到提高再生微粉的活性的效果。
Recycled concrete micro-powder and preparation method thereof
一种混凝土再生微粉及其制备方法
YU YUXING (Autor:in) / YU JIANSONG (Autor:in) / XU GUANGSEN (Autor:in) / ZOU CHENGZHONG (Autor:in)
01.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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