硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (7): 2335-2346.DOI: 10.16552/j.cnki.issn1001-1625.2026.0038
荆宏宇1(
), 段思宇1,2(
), 杨嵩桥3, 王永岗3, 周冬冬3, 路广军1, 马志斌1
收稿日期:2026-01-11
修订日期:2026-03-04
出版日期:2026-07-15
发布日期:2026-08-13
通信作者:
段思宇,博士,副教授。E-mail:2020031@tyust.edu.cn作者简介:荆宏宇(2001—),女,硕士研究生。主要从事循环流化床粉煤灰资源化利用的研究。E-mail:1360751212@qq.com
基金资助:
JING Hongyu1(
), DUAN Siyu1,2(
), YANG Songqiao3, WANG Yonggang3, ZHOU Dongdong3, LU Guangjun1, MA Zhibin1
Received:2026-01-11
Revised:2026-03-04
Published:2026-07-15
Online:2026-08-13
摘要:
为推动循环流化床炉渣(CFBS)的资源化利用并降低水泥行业碳排放,本研究通过机械粉磨制备了不同粒径的CFBS,并将其作为辅助胶凝材料与水泥复配。首先分析了不同粉磨时间CFBS的粒度分布、比表面积及微观形貌变化,然后分析了CFBS对复合胶凝材料工作性能及力学性能的影响规律,并借助XRD、TG-DTG、FT-IR和SEM分析复合胶凝材料水化特性。结果表明,粉磨45 min时CFBS细化效果最佳,中值粒径D50为8.69 μm,比表面积达到870 m2/kg,超过最佳粉磨时间会导致颗粒团聚,D50增大。减小粒径能有效激发CFBS活性,使复合胶凝体系相较于纯水泥体系呈微膨胀,并在D50最小时获得较优的力学性能与最短的凝结时间。减小CFBS粒径可提高胶凝体系的水化速率,促进C-(A)-S-H凝胶和钙矾石的生成,使结构更加致密,力学性能更为优异。本研究为基于CFBS粒径调控的复合胶凝材料设计与性能优化提供了参考。
中图分类号:
荆宏宇, 段思宇, 杨嵩桥, 王永岗, 周冬冬, 路广军, 马志斌. 循环流化床炉渣粒径对水泥基复合胶凝材料性能的影响[J]. 硅酸盐通报, 2026, 45(7): 2335-2346.
JING Hongyu, DUAN Siyu, YANG Songqiao, WANG Yonggang, ZHOU Dongdong, LU Guangjun, MA Zhibin. Effect of Circulating Fluidized Bed Slag Particle Size on Properties of Cement-Based Composite Cementitious Materials[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2026, 45(7): 2335-2346.
| Testing index | Specific surface area/(m2·kg-1) | Water requirement for standard consistency/% | Setting time/min | Flexural strength/MPa | Compressive strength/MPa | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Initial | Final | 3 d | 7 d | 28 d | 3 d | 7 d | 28 d | |||
| Measured value | 390 | 27.5 | 177 | 252 | 5.7 | 6.3 | 7.4 | 27.3 | 34.3 | 54.6 |
表1 水泥的性能指标
Table 1 Performance of cement
| Testing index | Specific surface area/(m2·kg-1) | Water requirement for standard consistency/% | Setting time/min | Flexural strength/MPa | Compressive strength/MPa | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Initial | Final | 3 d | 7 d | 28 d | 3 d | 7 d | 28 d | |||
| Measured value | 390 | 27.5 | 177 | 252 | 5.7 | 6.3 | 7.4 | 27.3 | 34.3 | 54.6 |
| Material | Mass fraction/% | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| SiO2 | Al2O3 | CaO | SO3 | Fe2O3 | Na2O | MgO | K2O | LOI | |
| OPC | 20.30 | 5.91 | 58.54 | 4.14 | 2.82 | 0.32 | 5.25 | 0.68 | 2.04 |
| CFBS | 45.17 | 25.31 | 10.50 | 4.60 | 0.25 | 1.09 | 1.18 | 1.35 | 4.16 |
表2 原材料的化学成分
Table 2 Chemical composition of raw materials
| Material | Mass fraction/% | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| SiO2 | Al2O3 | CaO | SO3 | Fe2O3 | Na2O | MgO | K2O | LOI | |
| OPC | 20.30 | 5.91 | 58.54 | 4.14 | 2.82 | 0.32 | 5.25 | 0.68 | 2.04 |
| CFBS | 45.17 | 25.31 | 10.50 | 4.60 | 0.25 | 1.09 | 1.18 | 1.35 | 4.16 |
| Sample | Grinding time/min | Specific surface area/(m2·kg-1) | Particle size distribution/% | D10/µm | D50/µm | D90/µm | |||
|---|---|---|---|---|---|---|---|---|---|
| 0~<3 µm | 3~<32 µm | 32~<65 µm | ≥65 µm | ||||||
| CFBS15 min | 15 | 330 | 6.76 | 38.21 | 26.73 | 28.3 | 4.22 | 34.52 | 100.90 |
| CFBS30 min | 30 | 520 | 11.24 | 53.63 | 25.41 | 9.72 | 2.49 | 19.43 | 59.40 |
| CFBS45 min | 45 | 870 | 23.02 | 64.64 | 11.42 | 0.92 | 1.41 | 8.69 | 32.46 |
| CFBS60 min | 60 | 830 | 20.51 | 62.90 | 14.66 | 1.93 | 1.45 | 10.34 | 37.72 |
表3 不同粉磨时间CFBS的比表面积与粒径特征参数
Table 3 Specific surface areas and particle size parameters of CFBS with different grinding time
| Sample | Grinding time/min | Specific surface area/(m2·kg-1) | Particle size distribution/% | D10/µm | D50/µm | D90/µm | |||
|---|---|---|---|---|---|---|---|---|---|
| 0~<3 µm | 3~<32 µm | 32~<65 µm | ≥65 µm | ||||||
| CFBS15 min | 15 | 330 | 6.76 | 38.21 | 26.73 | 28.3 | 4.22 | 34.52 | 100.90 |
| CFBS30 min | 30 | 520 | 11.24 | 53.63 | 25.41 | 9.72 | 2.49 | 19.43 | 59.40 |
| CFBS45 min | 45 | 870 | 23.02 | 64.64 | 11.42 | 0.92 | 1.41 | 8.69 | 32.46 |
| CFBS60 min | 60 | 830 | 20.51 | 62.90 | 14.66 | 1.93 | 1.45 | 10.34 | 37.72 |
| Temperature range/℃ | Mass loss/% | ||||
|---|---|---|---|---|---|
| OPC | CFBS15 min-OPC | CFBS30 min-OPC | CFBS45 min-OPC | CFBS60 min-OPC | |
| 100~200 | 8.35 | 12.00 | 13.29 | 14.04 | 13.34 |
| 400~500 | 4.63 | 2.89 | 2.74 | 2.58 | 2.75 |
| 600~750 | 3.08 | 3.66 | 3.58 | 3.53 | 3.50 |
表4 不同复合胶凝材料在各温度区间的质量损失
Table 4 Mass loss of different composite cementitious materials at different temperature ranges
| Temperature range/℃ | Mass loss/% | ||||
|---|---|---|---|---|---|
| OPC | CFBS15 min-OPC | CFBS30 min-OPC | CFBS45 min-OPC | CFBS60 min-OPC | |
| 100~200 | 8.35 | 12.00 | 13.29 | 14.04 | 13.34 |
| 400~500 | 4.63 | 2.89 | 2.74 | 2.58 | 2.75 |
| 600~750 | 3.08 | 3.66 | 3.58 | 3.53 | 3.50 |
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