Effect of Nano C-A-S-H and DEIPA Composite on Early Hydration of Cement at Different Temperatures

doi:10.16552/j.cnki.issn1001-1625.2024.1444

Abstract

Abstract: The purpose of this paper was to explore the effect of nano calcium aluminosilicate hydrate (C-A-S-H) and diethanol monoisopropanolamine (DEIPA) composite on the early hydration, setting time, chemical shrinkage and compressive strength of cement at different curing temperatures. The mechanism was analyzed by hydration heat, XRD, TG and SEM. The results show that after adding nano C-A-S-H and DEIPA at different curing temperatures, the hydration rate of silicate and aluminate is accelerated, more hydration products are formed in the system, and the setting time of cement is shortened. When the curing temperature is 10 ℃, the initial setting time and final setting time are shortened by 13.06% and 11.75% respectively compared with the blank group. At the curing temperature of 0, 10 and 20 ℃, the chemical shrinkage increases by 20.00%, 13.79% and 9.30% respectively compared with the blank group at age of 24 h. The compressive strength of cement mortar increases compared with the blank group. When the age is 24 h, and the curing temperature is -15, 0, 10 and 20 ℃, the compressive strength increases by 94.48%, 85.91%, 55.93% and 23.17%, respectively.

Key words: nano C-A-S-H, DEIPA, temperature, early hydration, chemical shrinkage, compressive strength

CLC Number:

TQ172

FANG Yanfeng, MA Xue, DING Xiangqun, TONG Yu. Effect of Nano C-A-S-H and DEIPA Composite on Early Hydration of Cement at Different Temperatures[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(6): 1996-2004.

References

[1] 耿健, 彭波, 孙家瑛. 蒸汽养护制度对水泥石孔结构的影响[J]. 建筑材料学报, 2011, 14(1): 116-118+123.
GENG J, PENG B, SUN J Y. Effect of steam curing system on pore structure of cement paste[J]. Journal of Building Materials, 2011, 14(1): 116-118+123 (in Chinese).
[2] 罗如意. CSH纳米晶核与硫酸钠对免蒸养预制混凝土性能的影响[D]. 西安: 西安建筑科技大学, 2023: 2-4.
LUO R Y. Effect of CSH nanocrystalline nuclei and sodium sulfate on properties of steam-free precast concrete[D]. Xi’an: Xi’an University of Architecture and Technology, 2023: 2-4 (in Chinese).
[3] 罗彪, 罗正东, 任辉启, 等. 速凝剂对低水胶比浆体早期水化与微观结构的影响[J]. 材料导报, 2023, 37(9): 91-97.
LUO B, LUO Z D, REN H Q, et al. Effects of accelerators on the early hydration and microstructure of paste with low water-binder ratio[J]. Materials Reports, 2023, 37(9): 91-97 (in Chinese).
[4] 朱云升, 肖钰臻, 刁锡刚, 等. 纳米SiO₂-CSH复合调节剂对水泥混凝土性能的影响[J]. 重庆交通大学学报(自然科学版), 2023, 42(11): 57-62.
ZHU Y S, XIAO Y Z, DIAO X G, et al. Influence of nano-SiO₂-CSH composite regulator on the properties of cement concrete[J]. Journal of Chongqing Jiaotong University(Natural Science), 2023, 42(11): 57-62 (in Chinese).
[5] ALIZADEH R, RAKI L, MAKAR J M, et al. Hydration of tricalcium silicate in the presence of synthetic calcium-silicate-hydrate[J]. Journal of Materials Chemistry, 2009, 19(42): 7937.
[6] DAMBRAUSKAS T, BALTAKYS K, ŠKAMAT J, et al. Hydration peculiarities of high basicity calcium silicate hydrate samples[J]. Journal of Thermal Analysis and Calorimetry, 2018, 131(1): 491-499.
[7] TANG R F, SUN D W, WANG Z J, et al. Synergistic effect and mechanism of nano-C-S-H seed and calcium sulfoaluminate cement on the early mechanical properties of Portland cement[J]. Materials, 2023, 16(4): 1575.
[8] KANCHANASON V, PLANK J. Effectiveness of a calcium silicate hydrate-polycarboxylate ether (C-S-H-PCE) nanocomposite on early strength development of fly ash cement[J]. Construction and Building Materials, 2018, 169: 20-27.
[9] ZOU F B, ZHANG M, HU C L, et al. Novel C-A-S-H/PCE nanocomposites: design, characterization and the effect on cement hydration[J]. Chemical Engineering Journal, 2021, 412: 128569.
[10] ZHOU H, ZHANG S P, LIU B, et al. Effect of nano C-A-S-H seeds on the early-stage hydration and pore structure of Portland cement pastes[J]. Advances in Cement Research, 2021, 33(7): 295-303.
[11] XU Z Q, LI W F, SUN J F, et al. Research on cement hydration and hardening with different alkanolamines[J]. Construction and Building Materials, 2017, 141: 296-306.
[12] WANG Y F, LEI L, HU X, et al. Effect of diethanolisopropanolamine and ethyldiisopropylamine on hydration and strength development of Portland cement[J]. Cement and Concrete Research, 2022, 162: 106999.
[13] 董武俊. DEIPA外加剂改性水泥搅拌桩强度特性试验研究[J]. 地基处理, 2020, 2(1): 65-70.
DONG W J. Experiment research on strength of deep mixing cement pile with DEIPA additive[J]. Journal of Ground Improvement, 2020, 2(1): 65-70 (in Chinese).
[14] 刘驰, 郭君渊, 杨晓杰, 等. DEIPA和C-S-H-PCEs复掺对水泥-粉煤灰体系早期性能的影响[J]. 建筑材料学报, 2024, 27(9): 789-795.
LIU C, GUO J Y, YANG X J, et al. Effects of DEIPA and C-S-H-PCEs on early properties of cement-fly ash systems[J]. Journal of Building Materials, 2024, 27(9): 789-795 (in Chinese).
[15] FANG Y F, ZHANG L M, LI L, et al. Preparation of nano-sized C-S-H and its acceleration mechanism on Portland cement hydration at different temperatures[J]. Materials, 2023, 16(9): 3484.
[16] 鲁佳兴, 房延凤, 惠一心, 等. 铝硅摩尔比对纳米水化硅铝酸钙及水泥早期水化影响研究[J/OL]. 工程科学与技术, 1-11 (2024-07-16) [2024-11-14]. http://kns.cnki.net/kcms/detail/51.1773.TB.20240712.1721.002.html.
LU J X, FANG Y F, HUI Y X, et al. Effects of A/S molar ratio on nano C-A-S-H and early hydration properties of cement[J/OL]. Advanced Engineering Sciences, 1-11 (2024-07-16) [2024-11-14]. http://kns.cnki.net/kcms/detail/51.1773.TB.20240712.1721.002.html (in Chinese).
[17] GHANEM H, RAMADAN R, KHATIB J, et al. A review on chemical and autogenous shrinkage of cementitious systems[J]. Materials, 2024, 17(2): 283.
[18] CHEN X T, YANG X J, WU K, et al. Understanding the role of C-S-H seed/PCE nanocomposites, triethanolamine, sodium nitrate and PCE on hydration and performance at early age[J]. Cement and Concrete Composites, 2023, 139: 105002.
[19] KONG D Y, HUANG S L, CORR D, et al. Whether do nano-particles act as nucleation sites for C-S-H gel growth during cement hydration?[J]. Cement and Concrete Composites, 2018, 87: 98-109.
[20] MA S H, LI W F, ZHANG S B, et al. Study on the hydration and microstructure of Portland cement containing diethanol-isopropanolamine[J]. Cement and Concrete Research, 2015, 67: 122-130.
[21] PAULINI A. A weighing method for cement hydration[C]//9th International Congress on the Chemistry of Cement. New Delhi: National Council for Cement and Building Materials, 1992: 248-254.
[22] WANG Y L, LU H J, WANG J J, et al. Effects of highly crystalized nano C-S-H particles on performances of Portland cement paste and its mechanism[J]. Crystals, 2020, 10(9): 816.
[23] WANG F, KONG X M, JIANG L F, et al. The acceleration mechanism of nano-C-S-H particles on OPC hydration[J]. Construction and Building Materials, 2020, 249: 118734.
[24] HE W, LIAO G. Investigation of the early-age performance and microstructure of nano-C-S-H blended cement-based materials[J]. Nanotechnology Reviews, 2021, 10(1): 1374-1382.
[25] GONZALEZ-PANICELLO L, PALACIOS M. Influence of DEIPA and TIPA on the hydration and microstructure of model cements[J]. Journal of Building Engineering, 2024, 82: 108242.