Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Environment-friendly cement and preparation method thereof
The invention discloses a preparation method of environment-friendly cement. The preparation method comprises the following steps: step 1, crushing and screening construction waste to obtain aggregate and powder; 2, the organic waste is subjected to pyrolysis treatment, and pyrolysis residues are obtained; 3, limestone, clay, the aggregate and powder in the step 1 and the pyrolysis residues in the step 2 are mixed, calcined and ground, and the environment-friendly cement is obtained. Wherein the construction waste is calculated according to the weight of the aggregate and the powder, the organic waste is calculated according to the weight of the pyrolysis residue, and the weight parts of the limestone, the clay, the construction waste and the organic waste are 35-45 parts, 5-10 parts, 45-55 parts and 6-18 parts respectively. Compared with the prior art, the cement has the advantages that the production cost is reduced by 15-30%, the heavy metal content of pyrolysis residues treated by the technical scheme is reduced by 40-70%, and the 28d strength of cement clinker is improved by 5-20% compared with that of common cement.
本发明公开一种环保水泥的制备方法，包括如下步骤：步骤1，将建筑垃圾破碎筛分得到骨料和粉料；步骤2，将有机废弃物进行热解处理，得到解热残渣；步骤3，将石灰石、黏土、步骤1的骨料和粉料、步骤2的热解残渣混合，煅烧，粉磨，得到环保水泥；其中，建筑垃圾以骨料和粉料的重量计，有机废弃物以热解残渣的重量计，石灰石、黏土、建筑垃圾和有机废弃物的重量份数分别为：35‑45重量份、5‑10重量份、45‑55重量份和6‑18重量份。本发明水泥与现有技术相比，生产成本降低15‑30％，经过本发明技术方案处理后，热解残渣重金属含量降低40‑70％，水泥熟料28d强度相比普通水泥提高5％‑20％。
Environment-friendly cement and preparation method thereof
The invention discloses a preparation method of environment-friendly cement. The preparation method comprises the following steps: step 1, crushing and screening construction waste to obtain aggregate and powder; 2, the organic waste is subjected to pyrolysis treatment, and pyrolysis residues are obtained; 3, limestone, clay, the aggregate and powder in the step 1 and the pyrolysis residues in the step 2 are mixed, calcined and ground, and the environment-friendly cement is obtained. Wherein the construction waste is calculated according to the weight of the aggregate and the powder, the organic waste is calculated according to the weight of the pyrolysis residue, and the weight parts of the limestone, the clay, the construction waste and the organic waste are 35-45 parts, 5-10 parts, 45-55 parts and 6-18 parts respectively. Compared with the prior art, the cement has the advantages that the production cost is reduced by 15-30%, the heavy metal content of pyrolysis residues treated by the technical scheme is reduced by 40-70%, and the 28d strength of cement clinker is improved by 5-20% compared with that of common cement.
本发明公开一种环保水泥的制备方法，包括如下步骤：步骤1，将建筑垃圾破碎筛分得到骨料和粉料；步骤2，将有机废弃物进行热解处理，得到解热残渣；步骤3，将石灰石、黏土、步骤1的骨料和粉料、步骤2的热解残渣混合，煅烧，粉磨，得到环保水泥；其中，建筑垃圾以骨料和粉料的重量计，有机废弃物以热解残渣的重量计，石灰石、黏土、建筑垃圾和有机废弃物的重量份数分别为：35‑45重量份、5‑10重量份、45‑55重量份和6‑18重量份。本发明水泥与现有技术相比，生产成本降低15‑30％，经过本发明技术方案处理后，热解残渣重金属含量降低40‑70％，水泥熟料28d强度相比普通水泥提高5％‑20％。
Environment-friendly cement and preparation method thereof
一种环保水泥及其制备方法
REN HAOHUA (Autor:in) / FENG GUOYU (Autor:in) / ZHAO JIAQI (Autor:in) / JIN TIAN (Autor:in) / JI XIANG (Autor:in) / LIU XUELI (Autor:in)
14.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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