Kinetic and thermodynamic modeling of Portland cement hydration at low temperatures

Liu, Zhuangzhuang; Sha, Aimin; Hu, Liqun; Lu, Yongwei; Jiao, Wenxiu; Zheng, Tong; Gao, Jie

doi:10.1007/s11696-016-0007-5

Cited by 32 publications

(7 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As believed, the mechanical behaviors of cement-based composites have great relationships with maturity [10]. Taken in this sense, Figure 5 could act as an evidence of the strength delaying in previous studies [17,18].…”

Section: Electrical Resistance At Early Agessupporting

confidence: 53%

Section: Thermodynamic Calculationmentioning

confidence: 99%

“…The modeling and software were detailed in our previous study [18], in which GEMS-PSI (software) and CEMDATA7.1 (database) were employed to calculate the hydrates of OPC. What should be noted is that in this study a basic kinetic function [24] of Portland cement hydration was modified by a solution equilibrium constant [18,25]. In the thermodynamic simulation, input data included the following: C 2 S = 11.1 g/100 g, C 3 S = 62.9 g/100 g, C 3 A = 6.0 g/100 g, C 4 AF = 11.5 g/100 g, gypsum = 4.6 g/100 g, K 2 O = 1.1 g/100 g, and Na 2 O = 0.3 g/100 g. Also, 10000 days were adapted as the final hydration term in the simulation.…”

Section: Thermodynamic Calculationmentioning

confidence: 99%

“…Thus, strategies in early ages should be applied to avoid the damages in matrix under cold weathers [13,14]. To this end, a lot of studies were conducted to learn the Portland cement hydration under low temperatures [10,11,[15][16][17][18], even though there is still lack of understanding in depth to the low temperature effects on cement hydration and hardening characteristics.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Portland Cement Hydration Behavior at Low Temperatures: Views from Calculation and Experimental Study

Liu

Jiao

Sha

et al. 2017

Advances in Materials Science and Engineering

Self Cite

View full text Add to dashboard Cite

Environmental condition affects the property of construction materials. This study gives an initial understanding of Portland cement hydration under low temperatures from the views of laboratory experiments (including electrical resistivity, degree of hydration (DoH), and maturity) as well as thermodynamic calculation. The hydrates of Portland cement at the given period were detected with X-ray diffraction (XRD), and their microstructure was observed by scanning electron microscope (SEM). Experiment result (i.e., DoH and electrical resistivity) indicated that the hydration of Portland cement was delayed by low temperature without hydration stopping at −5 ∘ C. Based on a basic kinetics model, the thermodynamic calculation predicted that the final hydrate differs in dependence on environmental temperatures. The mechanical behavior trend of Portland cement paste affected by low temperatures potentially is linked to the appearing of aluminate compounds and reduction of portlandite.

show abstract

Section: Electrical Resistance At Early Agessupporting

confidence: 53%

Section: Thermodynamic Calculationmentioning

confidence: 99%

Section: Thermodynamic Calculationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Portland Cement Hydration Behavior at Low Temperatures: Views from Calculation and Experimental Study

Liu

Jiao

Sha

et al. 2017

Advances in Materials Science and Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…The critical strain from the oscillatory strain-sweep test corresponds to the breakage of early hydration products between cement particles (Roussel et al 2012;Huang et al 2019;Jiao et al 2021a). Cementitious paste with lower solid volume fraction and higher free water generally has a higher dissolution rate of cement particles and thus a higher concentration of Ca 2þ ions (Hošková et al 2009;Liu et al 2017), resulting in more bridges of initial C-S-H and ettringite. Note that the formation of more hydration products does not necessarily mean a higher stiffness or more solid-like properties of the suspension, as a higher w=c system requires more products to develop a percolating structure due to the larger solid-to-solid spacing (Zhang et al 2010).…”

Section: Resultsmentioning

confidence: 99%

Effect of Solid Volume Fraction on the Magnetorheological Response of Nano-Fe3O4 Incorporated Cementitious Paste

Jiao

Yardımcı

Schryver

et al. 2022

J. Mater. Civ. Eng.

View full text Add to dashboard Cite

Magneto-induced rheology control is beneficial to overcome the opposing property requirements in different construction processes. The viscoelastic properties of paste medium have great effects on the movement and distribution of magnetic particles when applying an external magnetic field and thus the degree of the rheological response. In the present research, the effect of (total) solid volume fraction ϕ T on the magnetorheological (MR) response of nanoFe 3 O 4 incorporated cementitious paste, represented by the early structural build-up is experimentally investigated. Cementitious pastes with various solid volume fractions are achieved by changing the water-to-cement ratio (w=c) of the paste medium while the nanoFe 3 O 4 concentration remains unchanged. Results reveal that cementitious pastes with extremely low solid volume fractions acting as a dilute suspension show an insignificant increase in stiffness after applying an external magnetic field of 0.5 T, possibly due to the high surface to the surface separation distance between cement particles. Both the magnetic force between neighboring nanoparticles and the viscoelasticity of the suspension increase with increased solid volume fraction. At moderate solid volume fractions (e.g., 0.3 < ϕ T < 0.45), the formed magnetic clusters fill the voids between cement particles and thus increase the stiffness of the cementitious paste significantly. At relatively high solid volume fractions, despite the high magnetic force between nanoparticles, the dense particle packing limits the formation of magnetic clusters, and the MR response becomes indistinct. For the used cement and nano-Fe 3 O 4 particles, the suitable w=c of cementitious paste with pronounced MR response is in the range of 0.4-0.5.

show abstract

The formation process of aluminum hydroxide in calcium sulfoaluminate pastes

et al. 2020

View full text Add to dashboard Cite

Kinetic and thermodynamic modeling of Portland cement hydration at low temperatures

Cited by 32 publications

References 24 publications

Portland Cement Hydration Behavior at Low Temperatures: Views from Calculation and Experimental Study

Portland Cement Hydration Behavior at Low Temperatures: Views from Calculation and Experimental Study

Effect of Solid Volume Fraction on the Magnetorheological Response of Nano-Fe3O4 Incorporated Cementitious Paste

The formation process of aluminum hydroxide in calcium sulfoaluminate pastes

Contact Info

Product

Resources

About