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A platform for research: civil engineering, architecture and urbanism
Concrete expansive agent and preparation method thereof
The invention belongs to the technical field of concrete expansive agent processing, and particularly relates to a concrete expansive agent and a preparation method thereof. The method comprises the following steps: 1, putting fly ash and quick lime into a ball mill, carrying out grinding treatment, and adding stearic acid accounting for 0.04-0.08% of the total weight of the fly ash and the quick lime to obtain a prefabricated material; 2, calcining the prefabricated material for 1-2 hours at the temperature of 800-1000 DEG C, finally cooling to room temperature, and grinding to obtain a material A; 3, putting the calcium sulphoaluminate cement clinker and anhydrite into a ball mill, and grinding to obtain a material B; 4, the additive, the material A and the material B are put into a separate mill to be ground and then screened, the concrete expansive agent is prepared from fly ash, quick lime, calcium sulphoaluminate cement clinker, anhydrite and ground alumina, and the separate mill comprises a main body shell and a plurality of sets of grinding wheels installed in the main body shell; and the two grinding wheels in each group rotate reversely to extrude and grind materials.
本发明属于混凝土膨胀剂加工技术领域，具体而言，是一种混凝土膨胀剂及其制备方法；该方法采用以下步骤：步骤一：将粉煤灰和生石灰放入球磨机，粉磨处理，加入重量为粉煤灰和生石灰总重量0.04～0.08％的硬脂酸，得到预制料；步骤二：将预制料在800～1000℃温度下进行煅烧1～2h，最后冷却至室温，粉磨制得A料；步骤三：将硫铝酸钙水泥熟料和硬石膏放入球磨机，粉磨制得B料；步骤四：将添加剂、A料和B料置入到分磨器内研磨处理后进行筛分操作，该混凝土膨胀剂的组成包括：粉煤灰、生石灰、硫铝酸钙水泥熟料、硬石膏和粉磨处理后的矾土，所述分磨器包括主体外壳和安装在主体外壳内的多组研磨轮；利用每组两个的研磨轮反向转动对物料进行挤压研磨处理。
Concrete expansive agent and preparation method thereof
The invention belongs to the technical field of concrete expansive agent processing, and particularly relates to a concrete expansive agent and a preparation method thereof. The method comprises the following steps: 1, putting fly ash and quick lime into a ball mill, carrying out grinding treatment, and adding stearic acid accounting for 0.04-0.08% of the total weight of the fly ash and the quick lime to obtain a prefabricated material; 2, calcining the prefabricated material for 1-2 hours at the temperature of 800-1000 DEG C, finally cooling to room temperature, and grinding to obtain a material A; 3, putting the calcium sulphoaluminate cement clinker and anhydrite into a ball mill, and grinding to obtain a material B; 4, the additive, the material A and the material B are put into a separate mill to be ground and then screened, the concrete expansive agent is prepared from fly ash, quick lime, calcium sulphoaluminate cement clinker, anhydrite and ground alumina, and the separate mill comprises a main body shell and a plurality of sets of grinding wheels installed in the main body shell; and the two grinding wheels in each group rotate reversely to extrude and grind materials.
本发明属于混凝土膨胀剂加工技术领域，具体而言，是一种混凝土膨胀剂及其制备方法；该方法采用以下步骤：步骤一：将粉煤灰和生石灰放入球磨机，粉磨处理，加入重量为粉煤灰和生石灰总重量0.04～0.08％的硬脂酸，得到预制料；步骤二：将预制料在800～1000℃温度下进行煅烧1～2h，最后冷却至室温，粉磨制得A料；步骤三：将硫铝酸钙水泥熟料和硬石膏放入球磨机，粉磨制得B料；步骤四：将添加剂、A料和B料置入到分磨器内研磨处理后进行筛分操作，该混凝土膨胀剂的组成包括：粉煤灰、生石灰、硫铝酸钙水泥熟料、硬石膏和粉磨处理后的矾土，所述分磨器包括主体外壳和安装在主体外壳内的多组研磨轮；利用每组两个的研磨轮反向转动对物料进行挤压研磨处理。
Concrete expansive agent and preparation method thereof
一种混凝土膨胀剂及其制备方法
NIU YANG (author) / LIN JIAOJIAO (author)
2022-11-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Expansive type concrete waterproof agent and preparation method thereof
| European Patent Office | 2015