铝酸盐水泥-石膏-石灰三元体系水泥基注浆材料研究

doi:10.16552/j.cnki.issn1001-1625.2025.0627

摘要/Abstract

摘要：

铝酸盐水泥（CAC）在水化过程中易生成亚稳态相导致力学性能不稳定，限制了其在注浆加固工程中的应用。本文将CAC与石膏和石灰复配，以优化其水化行为并增强注浆材料的力学性能与稳定性，并通过水化温度测试、XRD、TG-DTG和SEM等方法揭示了CAC-石膏-石灰三元体系水泥基材料水化产物种类、含量及形貌的演化规律与机理。结果表明，可实现早期高强的最佳配合比范围为55%<m（CAC）<65%，5%<m（石灰）<15%，m（石膏）<30%。在该配合比范围内，固定CAC掺量条件下，随着石膏与石灰质量比的降低，试样抗压强度呈先升高后降低的趋势。此外，随着石膏掺量降低，片状水化铝酸二钙（2CaO·Al₂O₃·8H₂O， C₂AH₈）由堆叠分布转变为与钙矾石晶体错落分布，致使试样的结构致密性下降，抗折与抗压强度均降低。研究结果为铝酸盐水泥基注浆材料在复杂工程环境中的应用提供了理论依据和技术支持。

关键词: 注浆材料, 铝酸盐水泥, 石膏, 石灰, 三元体系, 相转化

Abstract:

The formation of metastable phases during calcium aluminate cement （CAC） hydration results in mechanical property instability， which restricts its application in grouting reinforcement engineering. This study proposed a composite system incorporating CAC with gypsum and lime to optimize its hydration behavior and enhanced the mechanical properties and stability of the grouting material. The evolution patterns and mechanisms of hydration product types， contents， and morphology of CAC-gypsum-lime ternary system were revealed through hydration temperature testing， XRD， TG-DTG， and SEM methods. The experimental results indicate that the optimal composition range for achieving early high strength corresponds to 55%<m（CAC）<65%， 5%<m（lime）<15%， m（gypsum）<30%. When maintaining constant CAC dosage within this optimal range， the compressive strength initial increase and then decrease with the reduction of the mass ratio of gypsum and lime. With the reduction of gypsum content， the plate-type dicalcium aluminate hydrate （2CaO·Al₂O₃·8H₂O， C₂AH₈） transitions from a stacked distribution to an interlocked distribution with ettringite crystals， resulting in a decrease in structural compactness， flexural and compressive strength of specimens. These findings provide both theoretical foundations and technical support for the application of calcium aluminate cement-based grouting materials in complex engineering environments.

Key words: grouting material, calcium aluminate cement, gypsum, lime, ternary system, phase transformation

中图分类号:

TU599

杨茂生, 张海波. 铝酸盐水泥-石膏-石灰三元体系水泥基注浆材料研究[J]. 硅酸盐通报, 2026, 45(1): 246-255.

YANG Maosheng, ZHANG Haibo. Research of Cement-Based Grouting Materials of Calcium Aluminate Cement-Gypsum-Lime Ternary System[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2026, 45(1): 246-255.

图/表 11

参考文献 33

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Material	Mass fraction/%
Material	Al₂O₃	CaO	SiO₂	Fe₂O₃	MgO	SO₃	TiO₂
CAC	54.35	31.76	7.06	1.65	0.70	0.87	1.89
Gypsum	0.23	39.40	2.83	0.03	1.36	54.16	0.60
Lime	1.18	91.72	2.48	0.28	2.44	1.19	—

Material	Mass fraction/%
Material	Al₂O₃	CaO	SiO₂	Fe₂O₃	MgO	SO₃	TiO₂
CAC	54.35	31.76	7.06	1.65	0.70	0.87	1.89
Gypsum	0.23	39.40	2.83	0.03	1.36	54.16	0.60
Lime	1.18	91.72	2.48	0.28	2.44	1.19	—

No.	Mass fraction/%
No.	CAC	Gypsum	Lime
C₅₅A_41.2L_3.8	55	41.2	3.8
C₅₅A_37.5L_7.5	55	37.5	7.5
C₅₅A_33.7L_11.3	55	33.7	11.3
C₅₅A_30.0L_15.0	55	30.0	15.0
C₆₀A_36.7L_3.3	60	36.7	3.3
C₆₀A_33.3L_6.7	60	33.3	6.7
C₆₀A_30.0L_10.0	60	30.0	10.0
C₆₀A_26.7L_13.3	60	26.7	13.3
C₆₅A_32.1L_2.9	65	32.1	2.9
C₆₅A_29.2L_5.8	65	29.2	5.8
C₆₅A_26.2L_8.8	65	26.2	8.8
C₆₅A_23.3L_11.7	65	23.3	11.7

No.	Mass fraction/%
No.	CAC	Gypsum	Lime
C₅₅A_41.2L_3.8	55	41.2	3.8
C₅₅A_37.5L_7.5	55	37.5	7.5
C₅₅A_33.7L_11.3	55	33.7	11.3
C₅₅A_30.0L_15.0	55	30.0	15.0
C₆₀A_36.7L_3.3	60	36.7	3.3
C₆₀A_33.3L_6.7	60	33.3	6.7
C₆₀A_30.0L_10.0	60	30.0	10.0
C₆₀A_26.7L_13.3	60	26.7	13.3
C₆₅A_32.1L_2.9	65	32.1	2.9
C₆₅A_29.2L_5.8	65	29.2	5.8
C₆₅A_26.2L_8.8	65	26.2	8.8
C₆₅A_23.3L_11.7	65	23.3	11.7