Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resistant low-heat Portland cement and preparation method thereof
The invention relates to high-temperature-resistant low-heat Portland cement and a preparation method thereof.The preparation method comprises the following steps that clinker A is prepared, raw materials are prepared, the raw materials are subjected to heat preservation for 30 min to 60 min at the temperature of 1000 DEG C to 1200 DEG C, and the clinker A containing 60.0%-75% of belite and 20%-40% of melilite is prepared; 2) preparing a clinker B, preparing a raw material, simultaneously introducing 0.5%-3% of crystalline silicon dioxide and/or aluminum oxide, and carrying out heat preservation on the raw material at 1400-1500 DEG C for 30-60 minutes to prepare a low-heat Portland cement clinker B with the C2S content being greater than or equal to 42%; and 3) grinding the clinker A, the clinker B and gypsum together, and uniformly mixing the ground clinker A, clinker B and gypsum with ceramic micro powder in a ratio of (10-30): (50-70): (4-8): (5-10) to obtain the finished product. The high-temperature-resistant and low-heat Portland cement provided by the invention can keep strength at 80 DEG C or even in a higher environment, has a wide application scene, and brings huge application value and economic benefits.
一种耐高温低热硅酸盐水泥及其制备方法，包含以下步骤：制备熟料A，配置生料，将生料在1000℃‑1200℃条件下保温30min‑60min,制得含有贝利特60.0%‑75%，黄长石20%‑40%的熟料A；2）制备熟料B，配置生料，同时引入0.5%‑3%的晶态二氧化硅和或三氧化二铝，将生料在1400℃‑1500℃条件下，保温30min‑60min,制得C2S含量≥42%的低热硅酸盐水泥熟料B；3）将熟料A、熟料B与石膏共同粉磨后，再与陶瓷微粉混合均匀，从而制得成品，其中，熟料A:熟料B：石膏：陶瓷微粉的比例为（10‑30）：（50‑70）：（4‑8）：（5‑10）。本发明提供的耐高温低热硅酸盐水泥可在80℃甚至更高的环境下保持强度，具有广泛的应用场景，带来巨大的应用价值和经济效益。
High-temperature-resistant low-heat Portland cement and preparation method thereof
The invention relates to high-temperature-resistant low-heat Portland cement and a preparation method thereof.The preparation method comprises the following steps that clinker A is prepared, raw materials are prepared, the raw materials are subjected to heat preservation for 30 min to 60 min at the temperature of 1000 DEG C to 1200 DEG C, and the clinker A containing 60.0%-75% of belite and 20%-40% of melilite is prepared; 2) preparing a clinker B, preparing a raw material, simultaneously introducing 0.5%-3% of crystalline silicon dioxide and/or aluminum oxide, and carrying out heat preservation on the raw material at 1400-1500 DEG C for 30-60 minutes to prepare a low-heat Portland cement clinker B with the C2S content being greater than or equal to 42%; and 3) grinding the clinker A, the clinker B and gypsum together, and uniformly mixing the ground clinker A, clinker B and gypsum with ceramic micro powder in a ratio of (10-30): (50-70): (4-8): (5-10) to obtain the finished product. The high-temperature-resistant and low-heat Portland cement provided by the invention can keep strength at 80 DEG C or even in a higher environment, has a wide application scene, and brings huge application value and economic benefits.
一种耐高温低热硅酸盐水泥及其制备方法，包含以下步骤：制备熟料A，配置生料，将生料在1000℃‑1200℃条件下保温30min‑60min,制得含有贝利特60.0%‑75%，黄长石20%‑40%的熟料A；2）制备熟料B，配置生料，同时引入0.5%‑3%的晶态二氧化硅和或三氧化二铝，将生料在1400℃‑1500℃条件下，保温30min‑60min,制得C2S含量≥42%的低热硅酸盐水泥熟料B；3）将熟料A、熟料B与石膏共同粉磨后，再与陶瓷微粉混合均匀，从而制得成品，其中，熟料A:熟料B：石膏：陶瓷微粉的比例为（10‑30）：（50‑70）：（4‑8）：（5‑10）。本发明提供的耐高温低热硅酸盐水泥可在80℃甚至更高的环境下保持强度，具有广泛的应用场景，带来巨大的应用价值和经济效益。
High-temperature-resistant low-heat Portland cement and preparation method thereof
一种耐高温低热硅酸盐水泥及其制备方法
HUANG WEN (Autor:in) / ZHI XIAO (Autor:in) / WANG MIN (Autor:in) / WEN ZHAIJUN (Autor:in) / YU YANG (Autor:in) / YAO GUANG (Autor:in) / SHEN XIN (Autor:in) / TANG GUANBAO (Autor:in) / GAO XIANSHU (Autor:in) / ZHANG KUNYUE (Autor:in)
19.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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