C-S-H/PCE纳米复合材料的制备及其对水泥早期水化的影响

doi:10.19964/j.issn.1006-4990.2024-0514

Abstract

Abstract:

In order to solve the problems of slow development of early strength and coarsening of pore structure of traditional fly ash mixed cement mortar，polycarboxylate modified calcium silicate hydrate（C-S-H/PCE） nanocomposites were synthesized by co-precipitation method，and their structures were characterized by various microscopic testing methods.Its effects on the early mechanical properties，pore structure，hydration kinetics and hydration products of cement mortar were deeply explored.The results showed that the addition of C-S-H/PCE could effectively improve the early compressive strength of mortar，and the growth rate of compressive strength was proportional to the content of C-S-H/PCE.When curing age was increased，the growth rate of compressive strength was decreased.C-S-H/PCE could significantly reduce the porosity of mortar samples and reduce the proportion of macropores in mortar，so as to improve the compactness of cement mortar and refine the pore structure.C-S-H/PCE could promote the early hydration of cement paste and improve the early hydration degree of cement paste.The higher the content of C-S-H/PCE，the more obvious the promotion effect.C-S-H/PCE not only effectively promoted the formation of more hydration products of cement and accelerated the whole hydration process，but also this process did not change the composition of hydration products，which ensured the stability and controllability of cement performance.Future research could focus on optimizing the preparation process of C-S-H/PCE，exploring its applicability in different types of cement and admixture systems，and its influence mechanism on the long-term durability of cement-based materials.At the same time，combined with advanced computational simulation technology，the interaction mechanism between C-S-H/PCE nanocomposites and cement matrix was deeply revealed，which provided theoretical basis and technical support for the development of high-performance and long-life cement-based materials.

Key words: C-S-H, cement hydration, pore structure, hydration products

CLC Number:

TQ132.32

YIN Yujiao, WU Fei, ZHOU Wenqiang, HE Dianwei. Preparation of C-S-H/PCE nanocomposites and its effect on early hydration of cement[J]. Inorganic Chemicals Industry, 2025, 57(9): 66-72.

Figures/Tables 8

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References 28

[1]	张文生，曹立学，郅晓，等.低钙水泥熟料矿物水化活性、性能及其制备熟料的发展［J］.硅酸盐学报，2023，51（9）：2465-2477.
	ZHANG Wensheng， CAO Lixue， ZHI Xiao，et al.Development on hydration activity，properties of low-calcium minerals and its clinkers［J］.Journal of the Chinese Ceramic Society，2023，51（9）：2465-2477.
[2]	SUN Jinfeng， DONG Haina， WU Jiajun，et al.Properties evolution of cement-metakaolin system with C-S-H/PCE nanocomposites［J］.Construction and Building Materials，2021，282：122707.
[3]	ZOU Fubing， HU Chuanlin， WANG Fazhou，et al.Enhancement of early-age strength of the high content fly ash blended cement paste by sodium sulfate and C-S-H seeds towards a greener binder［J］.Journal of Cleaner Production，2020，244：118566.
[4]	桂彬，陈鸿，杨林，等.石灰-水泥-粉煤灰改性磷石膏对水泥物理性能的影响研究［J］.无机盐工业，2022，54（12）：92-98.
	GUI Bin， CHEN Hong， YANG Lin，et al.Effect of phosphogypsum modified by lime-cement-fly ash on physical properties of cement［J］.Inorganic Chemicals Industry，2022，54（12）：92-98.
[5]	高建荣，李文宇，芋艳梅，等.利用多种工业废渣复配制备胶凝材料的实验研究［J］.无机盐工业，2021，53（2）：77-80.
	GAO Jianrong， LI Wenyu， YU Yanmei，et al.Experimental study on activating various industrial residues to compound and prepare cementitious materials［J］.Inorganic Chemicals Industry，2021，53（2）：77-80.
[6]	ALTOUBAT S， TALHA JUNAID M， LEBLOUBA M，et al.Effectiveness of fly ash on the restrained shrinkage cracking resistance of self-compacting concrete［J］.Cement and Concrete Composites，2017，79：9-20.
[7]	HU Xiang， SHI Caijun， SHI Zhenguo，et al.Early age shrinkage and heat of hydration of cement-fly ash-slag ternary blends［J］.Construction and Building Materials，2017，153：857-865.
[8]	TERMKHAJORNKIT P， NAWA T， NAKAI M，et al.Effect of fly ash on autogenous shrinkage［J］.Cement and Concrete Research，2005，35（3）：473-482.
[9]	张君槐.建筑材料性能对混凝土早期裂缝的影响［J］.四川建材，2023，49（5）：24-25，34.
	ZHANG Junhuai.Influence of building material properties on early cracks of concrete［J］.Sichuan Building Materials，2023，49（5）：24-25，34.
[10]	WANG L， YANG H Q， ZHOU S H，et al.Mechanical properties，long-term hydration heat，shinkage behavior and crack resistance of dam concrete designed with low heat portland（LHP） cement and fly ash［J］.Construction and Building Materials，2018，187：1073-1091.
[11]	刘扬，王家理，罗冬，等.硅灰及矿渣粉对大掺量粉煤灰砂浆力学性能的影响及机理研究［J］.硅酸盐通报，2024，43（7）：2584-2594.
	LIU Yang， WANG Jiali， LUO Dong，et al.Effects of silica fume and GGBS on mechanical properties of high volume fly ash mortar and its mechanism［J］.Bulletin of the Chinese Ceramic Society，2024，43（7）：2584-2594.
[12]	LI Peiran， LI Wengui， SUN Zhihui，et al.Development of sustainable concrete incorporating seawater：A critical review on cement hydration，microstructure and mechanical strength［J］.Cement and Concrete Composites，2021，121：104100.
[13]	赵丕琪，孙乾，杨新月，等.水化硅酸钙凝胶的研究进展［J］.硅酸盐学报，2024，52（5）：1710-1721.
	ZHAO Piqi， SUN Qian， YANG Xinyue，et al.Calcium silicate hydrate gels：A short review［J］.Journal of the Chinese Ceramic Society，2024，52（5）：1710-1721.
[14]	HUBLER M H， THOMAS J J， JENNINGS H M.Influence of nucleation seeding on the hydration kinetics and compressive strength of alkali activated slag paste［J］.Cement and Concrete Research，2011，41（8）：842-846.
[15]	WANG Fang， KONG Xiangming， JIANG Lingfei，et al.The acceleration mechanism of nano-C-S-H particles on OPC hydrati-on［J］.Construction and Building Materials，2020，249：118734.
[16]	SUN Jinfeng， SHI Hu， QIAN Binbin，et al.Effects of synthetic C-S-H/PCE nanocomposites on early cement hydration［J］.Construction and Building Materials，2017，140：282-292.
[17]	SHIN J Y， HONG J S， SUH J K，et al.Effects of polycarboxylate-type superplasticizer on fluidity and hydration behavior of cement paste［J］.Korean Journal of Chemical Engineering，2008，25（6）：1553-1561.
[18]	GARTNER E， MARUYAMA I， CHEN J.A new model for theC-S-H phase formed during the hydration of Portland cements［J］.Cement and Concrete Research，2017，97：95-106.
[19]	ALIZADEH R， BEAUDOIN J J， RAKI L，et al.C-S-H/polyaniline nanocomposites prepared by in situ polymerization［J］.Journal of Materials Science，2011，46（2）：460-467.
[20]	段运，王起才，张戎令，等.低温（3 ℃）下高强混凝土强度增长及其水化程度研究［J］.硅酸盐通报，2016，35（1）：12-18.
	DUAN Yun， WANG Qicai， ZHANG Rongling，et al.Strength growth of high strength concrete and its degree of hydration under low temperature（3 ℃）［J］.Journal of the Chinese Ceramic Society，2016，35（1）：12-18.
[21]	CHEN Mengzhu， WEI Yanan， ZHENG Haibing，et al.Ca-LDH-modified cementitious coating to enhance corrosion resistance of steel bars［J］.Journal of Building Engineering，2022，51：104301.
[22]	CHEN Jun， KOU Shicong， POON C S.Hydration and properties of nano-TiO₂ blended cement composites［J］.Cement and Concrete Composites，2012，34（5）：642-649.
[23]	HU Sile， XU Zhichao， MA Xiaobing，et al.Preparation of C-S-H seeds from solid waste and its application as Portland cement accelerator［J］.Construction and Building Materials，2024，428：136277.
[24]	WANG Lei， GUO Fanxing， LIN Yuqiang，et al.Comparison between the effects of phosphorous slag and fly ash on the C-S-H structure，long-term hydration heat and volume deformation of cement-based materials［J］.Construction and Building Materials，2020，250：118807.
[25]	BULLARD J W， JENNINGS H M， LIVINGSTON R A，et al.Mechanisms of cement hydration［J］.Cement and Concrete Research，2011，41（12）：1208-1223.
[26]	SCRIVENER K L， JUILLAND P， MONTEIRO P J M.Advances in understanding hydration of Portland cement［J］.Cement and Concrete Research，2015，78：38-56.
[27]	XU Chao， LI Haoxin， YANG Xiaojie.Effect and characterization of the nucleation C-S-H seed on the reactivity of granulated blast furnace slag powder［J］.Construction and Building Materials，2020，238：117726.
[28]	LONG Zhaofei， LONG Guangcheng， TANG Zhuo，et al.Hydration，strength，and microstructure evolution of Portland cement-calcium sulphoaluminate cement-CSH seeds ultra-early strength cementitious system［J］.Construction and Building Materials，2024，430：136492.

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Preparation of C-S-H/PCE nanocomposites and its effect on early hydration of cement

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