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A platform for research: civil engineering, architecture and urbanism
High-corrosion-resistance Portland cement and production method thereof
The invention relates to high-corrosion-resistance Portland cement and a production method thereof. The high-corrosion-resistance Portland cement is prepared from, by weight, 93-97% of high-corrosion-resistance Portland clinker and 3-7% of natural gypsum. The high-corrosion-resistance silicate clinker is prepared from, by weight, 78-82% of limestone, 11-15% of high-silicon sandstone and 6-8% of pyrite. The method comprises the steps of raw material preparation, slurry dehydration, material cake drying and crushing, clinker sintering and conveying, and cement grinding. The 3-day compressive strength and the 28-day compressive strength of the high-corrosion-resistance Portland cement produced by the invention are both higher than the highest strength grade requirement in the national standard GB/T 31289-2014 Portland cement for maritime work, and the high-corrosion-resistance Portland cement has very good compressive property; and the chloride ion diffusion coefficient is less than 0.5 * 10<-12> m<2>/s, the 28-day seawater erosion resistance coefficient K28 is more than 1.0, and the product has characteristics of good seawater erosion resistance and good seawater erosion resistance, and is suitable for various harsh marine conditions.
本发明是一种高抗蚀硅酸盐水泥及其生产方法，由以下重量百分比的原料制成：高抗蚀硅酸盐熟料93～97％，天然石膏3～7％；其中，所述的高抗蚀硅酸盐熟料各原料的重量百分比为：石灰石78～82％，高硅砂岩11～15％，硫铁矿6～8％；其工艺过程包括生料制备、料浆脱水、料饼烘干破碎、熟料烧成及输送、水泥粉磨。本发明生产的高抗蚀硅酸盐水泥，3天抗压强度和28天抗压强度均高于国家标准GB/T 31289‑2014《海工硅酸盐水泥》中的最高强度等级的要求，具有很好的抗压性能；氯离子扩散系数<0.5×10‑12m2/s、28天抗海水侵蚀系数K28>1.0，具有很好的抗海水侵蚀性能和抗海水冲磨能力，适用于各种严苛的海洋条件。
High-corrosion-resistance Portland cement and production method thereof
The invention relates to high-corrosion-resistance Portland cement and a production method thereof. The high-corrosion-resistance Portland cement is prepared from, by weight, 93-97% of high-corrosion-resistance Portland clinker and 3-7% of natural gypsum. The high-corrosion-resistance silicate clinker is prepared from, by weight, 78-82% of limestone, 11-15% of high-silicon sandstone and 6-8% of pyrite. The method comprises the steps of raw material preparation, slurry dehydration, material cake drying and crushing, clinker sintering and conveying, and cement grinding. The 3-day compressive strength and the 28-day compressive strength of the high-corrosion-resistance Portland cement produced by the invention are both higher than the highest strength grade requirement in the national standard GB/T 31289-2014 Portland cement for maritime work, and the high-corrosion-resistance Portland cement has very good compressive property; and the chloride ion diffusion coefficient is less than 0.5 * 10<-12> m<2>/s, the 28-day seawater erosion resistance coefficient K28 is more than 1.0, and the product has characteristics of good seawater erosion resistance and good seawater erosion resistance, and is suitable for various harsh marine conditions.
本发明是一种高抗蚀硅酸盐水泥及其生产方法，由以下重量百分比的原料制成：高抗蚀硅酸盐熟料93～97％，天然石膏3～7％；其中，所述的高抗蚀硅酸盐熟料各原料的重量百分比为：石灰石78～82％，高硅砂岩11～15％，硫铁矿6～8％；其工艺过程包括生料制备、料浆脱水、料饼烘干破碎、熟料烧成及输送、水泥粉磨。本发明生产的高抗蚀硅酸盐水泥，3天抗压强度和28天抗压强度均高于国家标准GB/T 31289‑2014《海工硅酸盐水泥》中的最高强度等级的要求，具有很好的抗压性能；氯离子扩散系数<0.5×10‑12m2/s、28天抗海水侵蚀系数K28>1.0，具有很好的抗海水侵蚀性能和抗海水冲磨能力，适用于各种严苛的海洋条件。
High-corrosion-resistance Portland cement and production method thereof
一种高抗蚀硅酸盐水泥及其生产方法
YANG YI (author) / LI SHAOCHENG (author) / QIN JINYING (author) / DENG YULIAN (author) / LIU JI (author) / JIANG SHANPING (author) / TANG XIAOCHUN (author) / LONG SHENGKANG (author) / GU QIAOYAN (author) / LU JINHAI (author)
2021-12-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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