Search Results - "He, Jionghuang"

A Comparative Study on the Mechanical Properties and Microstructure of Cement-Based Materials by Direct Electric Curing and Steam Curing by Yang, Zhihan, Xie, Youjun, He, Jionghuang, Wang, Fan, Zeng, Xiaohui, Ma, Kunlin, Long, Guangcheng

“…Direct electric curing (EC) is a new green curing method for cement-based materials that improves the early mechanical properties via the uniform high…”
Get full text

A new approach for characterizing internal stress of fresh concrete during thermal treatment period by Xiang, Yu, He, Jionghuang, Long, Guangcheng, Xie, Youjun, Wang, Jilin

“…Addressing the scarcity of research on the residual expansion deformation of steam-cured concrete and its underlying factors, this study introduces a testing…”
Get full text

Design and preparation of ultra-high performance concrete with low environmental impact by Shi, Ye, Long, Guangcheng, Ma, Cong, Xie, Youjun, He, Jionghuang

“…Ultra-high performance concrete (UHPC) is one of the most promising materials to reduce the detrimental effects of building materials on the environment…”
Get full text

Comprehensive study on the hydration kinetics, mechanical properties and autogenous shrinkage of cement pastes during steam curing by He, Jionghuang, Long, Guangcheng, Ma, Kunlin, Xie, Youjun

Get full text

Influence of fly ash or slag on nucleation and growth of early hydration of cement by He, Jionghuang, Long, Guangcheng, Ma, Kunlin, Xie, Youjun

“…•The influences of FA and SL on the nucleation and growth of cement paste were studied.•FA retards the early hydration of cement at 20℃ due to its hindering…”
Get full text

Evolution of multi-scale pore structure of concrete during steam-curing process by Zou, Chao, Long, Guangcheng, Xie, Youjun, He, Jionghuang, Ma, Cong, Zeng, Xiaohui

“…Steam-curing at elevated temperature involves a complex hygrothermal coupling action, which greatly affects the hydration process, microstructure buildup and…”
Get full text

Hydration heat evolution of Portland cement paste during unsteady steam curing process: Modelling and optimization by He, Jionghuang, Long, Guangcheng, Ma, Kunlin, Xie, Youjun, Ma, Cong

“…•A numerical method was proposed to analyze the hydration of steam curing cement.•The effect of steam curing regimes on the hydration of cement was…”
Get full text

A comparison of the influence of micro- and nano-silica on hydration kinetics of Portland cement under different temperatures by Ma, Cong, He, Jionghuang, Qin, Tao, Long, Guangcheng, Du, Yinfei, Xie, Youjun

“…•Micro-silica has slight influence on hydration kinetics of cement at 20 °C and 40 °C.•The effects of micro- and nano-silica on hydration kinetics are very…”
Get full text

Experimental investigation on mechanical strength and microstructure of cement paste by electric curing with different voltage and frequency by Yang, Zhihan, Xie, Youjun, He, Jionghuang, Zeng, Xiaohui, Ma, Kunlin, Long, Guangcheng

“…•Electric curing is proposed for the rapid curing of cement at room temperature.•Suitable electrical curing regime can effectively improve the early strength…”
Get full text

Insight into the flexural characteristics of rapid hardening ultra-high performance concrete (RH-UHPC) incorporating C-S-H seeds using acoustic emission technology by Yang, Kai, Long, Guangcheng, Tang, Zhuo, Ma, Gang, Zhao, Hong, He, Jionghuang, Cheng, Zhiqing, Xie, Youjun

“…•C-S-H seeds and sulphoaluminate cement were used to prepared RH-UHPC.•The flexural load–deflection response of RH-UHPC was studied by AE technology.•The…”
Get full text

Improvement of the Hydration of a Fly Ash–Cement System by the Synergic Action of Triethanolamine and C–S–H Seeding by He, Jionghuang, Long, Guangcheng, Ma, Kunlin, Xie, Youjun, Cheng, Zhiqing

“…The low reactivity of fly ash (FA) restricts its application in concrete. To promote the utilization of FA, the research on the activation of FA has been one…”
Get full text

Revealing the connection between carbonation regimes and early pozzolanic reactivity of recycled concrete powder: Impact of composition and microstructure by Ma, Zihan, Jiang, Yi, He, Jionghuang, Shen, Peiliang, Qin, Qinglong, Gu, Zhenjiang, Li, Jiangshan, Poon, Chi Sun

“…This study aims to establish relationship between carbonation regimes and the early pozzolanic reactivity of carbonated recycled concrete powder (CRCP) by…”
Get full text

Influence of direct electric curing on the hydration and microstructure of cement paste excluding ohmic heating by Yang, Zhihan, Xie, Youjun, He, Jionghuang, Wang, Fan, Zeng, Xiaohui, Ma, Kunlin, Long, Guangcheng

“…•A modified isothermal calorimeter was used to measure the hydration heat of DEC cement paste.•The influence of DEC excluding OH effect on fresh cement paste…”
Get full text

An innovative strategy for maximizing CO2 reduction in concrete through preparing carbon sequestration precursors by accelerated carbonation by Zhao, Yingliang, Cui, Kai, He, Jionghuang, Zheng, Yong, Shen, Peiliang, Poon, Chi Sun, Peng, Guangmin, Guo, Ruilai, Xia, Daohui

“…Concrete possesses significant potential as a medium for CO2 sequestration. Nevertheless, conventional approaches like CO2 mixing and carbonation curing have…”
Get full text

Highly reactive carbonated recycled concrete fines prepared via mechanochemical carbonation: Influence on the early performance of cement composites by Zhao, Yingliang, Cui, Kai, He, Jionghuang, Zheng, Yong, Shen, Peiliang, Poon, Chi Sun, Peng, Guangmin, Guo, Ruilai, Xia, Daohui

“…Carbonated recycled concrete fines (RCF) possess the potential to serve as supplementary cementitious materials (SCMs). However, calcium carbonate (Cc) formed…”
Get full text

Recyling manganese-rich electrolytic residues: a review by Wang, Fan, Long, Guangcheng, Ma, Kunlin, Zeng, Xiaohui, Tang, Zhuo, Dong, Rongzhen, He, Jionghuang, Shangguan, Minghui, Hu, Qingchun, Liew, Rock Keey, Li, Yang, Zhou, John

“…Huge amounts of manganese-rich solid residues are yearly produced worldwide by industrial electrolysis, calling for advanced methods of recycling in the…”
Get full text

Effect of Triethanolamine on Hydration Kinetics of Cement–Fly Ash System at Elevated Curing Temperature by He, Jionghuang, Long, Guangcheng, Ma, Cong, Ma, Kunlin, Xie, Youjun, Shi, Yi, Li, Ning, Cheng, Zhiqing

“…As a high-output industrial byproduct, fly ash can partially replace Portland cement in concrete, which is one of the important treatment methods to improve…”
Get full text

Fabrication of Energy-Efficient Carbonate-Based Cementitious Material Using Sodium Meta-Aluminate Activated Limestone Powder by Wang, Fan, Long, Guangcheng, He, Jionghuang, Xie, Youjun, Tang, Zhuo, Zhou, Xiang, Bai, Min, Zhou, John L.

“…Limestone powder (LP) and sodium meta-aluminate (SMA) were used to fabricate calcium carbonate-based cementitious material, as a solution to address the solid…”
Get full text