硫酸亚铁和硝酸钙对超硫酸盐水泥强度的影响

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发布时间：2020-01-06 00:00:00

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硫酸亚铁和硝酸钙对超硫酸盐水泥强度的影响

Effects of Ferrous Sulfate and Calcium Nitrate on Strength of Supersulfate Cement

2023年第1期

超硫酸盐水泥；硫酸亚铁；硝酸钙；抗压强度；抗折强度

Supersulfate cement; Ferrous sulfate; Calcium nitrate; Compressive strength; Flexural strength

2023年第1期

10.19761/j.1000-4637.2023.01.079.05

季军荣1，武双磊2，周威杰2，奚莹莹1，周润铎2，周洲1

1.崇左南方水泥有限公司，广西崇左532201；2.浙江大学材料科学与工程学院，浙江杭州 310027

季军荣1，武双磊2，周威杰2，奚莹莹1，周润铎2，周洲1

季军荣,武双磊,周威杰,等.硫酸亚铁和硝酸钙对超硫酸盐水泥强度的影响[J].混凝土与水泥制品,2023(1):79-83.

JI J R,WU S L,ZHOU W J,et al.Effects of Ferrous Sulfate and Calcium Nitrate on Strength of Supersulfate Cement[J].China Concrete and Cement Products,2023(1):79-83.

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摘要：采用矿渣制备了超硫酸盐水泥，研究了硫酸亚铁和硝酸钙的掺量和掺加方式对超硫酸盐水泥3 d、7 d、28 d和90 d抗压、抗折强度的影响。结果表明：单掺适量硫酸亚铁时，超硫酸盐水泥各龄期的抗压、抗折强度均有所提高，但掺量过大（＞0.5%）时对早期（3 d）抗压、抗折强度不利；单掺硝酸钙时，超硫酸盐水泥各龄期的抗压、抗折强度均有所降低；复掺硫酸亚铁和硝酸钙时，超硫酸盐水泥各龄期的抗压、抗折强度较未掺和单掺时均有明显提高，其中，复掺1.5%硫酸亚铁和2.0%硝酸钙对强度的提高效果最好。 Abstract: The supersulfate cement was prepared with slag, and the effects of ferrous sulfate and calcium nitrate on the compressive and flexural strength of supersulfate cement at 3 d, 7 d, 28 d and 90 d were studied. The results show that the compressive and flexural strength of supersulfate cement at all ages are improved with the appropriate content of ferrous sulfate alone, but the early compressive and flexural strength (3 d) are not good when the content is too large (>0.5%). When adding calcium nitrate alone, the compressive and flexural strength of each age of supersulfate cement decrease. When mixed with ferrous sulfate and calcium nitrate, the compressive and flexural strength of supersulfate cement at each age are significantly improved compared with those of blank group and single adding group, among them, mixed with 1.5% ferrous sulfate and 2.0% calcium nitrate has the best effect.

英文名 : Effects of Ferrous Sulfate and Calcium Nitrate on Strength of Supersulfate Cement

刊期 : 2023年第1期

关键词 : 超硫酸盐水泥；硫酸亚铁；硝酸钙；抗压强度；抗折强度

Key words : Supersulfate cement; Ferrous sulfate; Calcium nitrate; Compressive strength; Flexural strength

刊期 : 2023年第1期

DOI : 10.19761/j.1000-4637.2023.01.079.05

文章编号 :

基金项目 :

作者 : 季军荣1，武双磊2，周威杰2，奚莹莹1，周润铎2，周洲1

单位 : 1.崇左南方水泥有限公司，广西崇左532201；2.浙江大学材料科学与工程学院，浙江杭州 310027

季军荣1，武双磊2，周威杰2，奚莹莹1，周润铎2，周洲1

季军荣,武双磊,周威杰,等.硫酸亚铁和硝酸钙对超硫酸盐水泥强度的影响[J].混凝土与水泥制品,2023(1):79-83.

JI J R,WU S L,ZHOU W J,et al.Effects of Ferrous Sulfate and Calcium Nitrate on Strength of Supersulfate Cement[J].China Concrete and Cement Products,2023(1):79-83.

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Abstract: The supersulfate cement was prepared with slag, and the effects of ferrous sulfate and calcium nitrate on the compressive and flexural strength of supersulfate cement at 3 d, 7 d, 28 d and 90 d were studied. The results show that the compressive and flexural strength of supersulfate cement at all ages are improved with the appropriate content of ferrous sulfate alone, but the early compressive and flexural strength (3 d) are not good when the content is too large (>0.5%). When adding calcium nitrate alone, the compressive and flexural strength of each age of supersulfate cement decrease. When mixed with ferrous sulfate and calcium nitrate, the compressive and flexural strength of supersulfate cement at each age are significantly improved compared with those of blank group and single adding group, among them, mixed with 1.5% ferrous sulfate and 2.0% calcium nitrate has the best effect.

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硫酸亚铁和硝酸钙对超硫酸盐水泥强度的影响

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