Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of aluminoferrite cement and low-carbon corrosion-resistant aluminoferrite cement prepared by same
The invention relates to a preparation method of aluminoferrite cement and low-carbon corrosion-resistant aluminoferrite cement prepared by the same. Relates to improvement of corrosion resistance of iron aluminate cement. Limestone, sandstone, bauxite, iron ore and ardealite are adopted to prepare a raw material; then carrying out gradient calcination to prepare clinker; grinding the clinker and dihydrate gypsum together to prepare clinker powder; and mixing the clinker powder with high-alumina fly ash and tetra calcium aluminoferrite whiskers to prepare the low-carbon corrosion-resistant aluminoferrite cement. According to the invention, high-activity tetra calcium aluminoferrite whiskers and high-alumina fly ash are adopted as a mixed material and cooperate with a high-activity C2S hydration process, and an aluminum element is doped into a hydration product, so that more stable aluminum modified hydrated calcium silicate is generated, and the corrosion resistance of the cement is further improved. High-activity C2S is introduced to guarantee the later strength, the corrosion resistance of a hydration product is improved, the corrosion resistance advantage is amplified, the low-carbon property of the hydration product is exerted, and infrastructure construction in the ocean and high-sulfate-erosion environment can be effectively assisted to develop towards the low-carbon and long-service-life direction.
一种铁铝酸盐水泥制备方法及其制备的低碳耐蚀铁铝酸盐水泥。涉及对铁铝酸盐水泥耐腐蚀性的改进。本发明采用石灰石、砂岩、铝矾土、铁矿石和磷石膏制备成生料；再进行梯度煅烧，制成熟料；再将熟料与二水石膏共同粉磨，制成熟料粉末；熟料粉末再与高铝粉煤灰以及铁铝酸四钙晶须混合，制得低碳耐蚀铁铝酸盐水泥。本发明采用高活性的铁铝酸四钙晶须和高铝粉煤灰作为混合材，与高活性C2S水化过程相互协同，铝元素掺杂至水化产物，生成更加稳定的铝改性水化硅酸钙，进一步提高水泥耐蚀性。引入高活性C2S保障后期强度，提高水化产物耐蚀性，放大耐蚀性优势、发挥其低碳属性，能够有效助力海洋、高硫酸盐侵蚀环境下的基础设施建设朝低碳、长寿命方向发展。
Preparation method of aluminoferrite cement and low-carbon corrosion-resistant aluminoferrite cement prepared by same
The invention relates to a preparation method of aluminoferrite cement and low-carbon corrosion-resistant aluminoferrite cement prepared by the same. Relates to improvement of corrosion resistance of iron aluminate cement. Limestone, sandstone, bauxite, iron ore and ardealite are adopted to prepare a raw material; then carrying out gradient calcination to prepare clinker; grinding the clinker and dihydrate gypsum together to prepare clinker powder; and mixing the clinker powder with high-alumina fly ash and tetra calcium aluminoferrite whiskers to prepare the low-carbon corrosion-resistant aluminoferrite cement. According to the invention, high-activity tetra calcium aluminoferrite whiskers and high-alumina fly ash are adopted as a mixed material and cooperate with a high-activity C2S hydration process, and an aluminum element is doped into a hydration product, so that more stable aluminum modified hydrated calcium silicate is generated, and the corrosion resistance of the cement is further improved. High-activity C2S is introduced to guarantee the later strength, the corrosion resistance of a hydration product is improved, the corrosion resistance advantage is amplified, the low-carbon property of the hydration product is exerted, and infrastructure construction in the ocean and high-sulfate-erosion environment can be effectively assisted to develop towards the low-carbon and long-service-life direction.
一种铁铝酸盐水泥制备方法及其制备的低碳耐蚀铁铝酸盐水泥。涉及对铁铝酸盐水泥耐腐蚀性的改进。本发明采用石灰石、砂岩、铝矾土、铁矿石和磷石膏制备成生料；再进行梯度煅烧，制成熟料；再将熟料与二水石膏共同粉磨，制成熟料粉末；熟料粉末再与高铝粉煤灰以及铁铝酸四钙晶须混合，制得低碳耐蚀铁铝酸盐水泥。本发明采用高活性的铁铝酸四钙晶须和高铝粉煤灰作为混合材，与高活性C2S水化过程相互协同，铝元素掺杂至水化产物，生成更加稳定的铝改性水化硅酸钙，进一步提高水泥耐蚀性。引入高活性C2S保障后期强度，提高水化产物耐蚀性，放大耐蚀性优势、发挥其低碳属性，能够有效助力海洋、高硫酸盐侵蚀环境下的基础设施建设朝低碳、长寿命方向发展。
Preparation method of aluminoferrite cement and low-carbon corrosion-resistant aluminoferrite cement prepared by same
一种铁铝酸盐水泥制备方法及其制备的低碳耐蚀铁铝酸盐水泥
SHEN XIN (Autor:in) / WU HAO (Autor:in) / WANG MIN (Autor:in) / GUO SUIHUA (Autor:in) / GAO XIANSHU (Autor:in) / ZHANG KUNYUE (Autor:in) / YU YANG (Autor:in) / YAO GUANG (Autor:in) / HUANG WEN (Autor:in) / SUN MINGMING (Autor:in)
15.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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