Modeling Hydration Kinetics of the Portland-Cement-Based Cementitious Systems with Mortar Blends by Non-Assumptive Projection Pursuit Regression

2021 ◽  
Vol 705 ◽  
pp. 179035
Author(s):  
Can Qin ◽  
Jingwei Gong ◽  
Gangchuan Xie
Keyword(s):  
Portland Cement ◽  
Projection Pursuit ◽  
Hydration Kinetics ◽  
Projection Pursuit Regression ◽  
Cementitious Systems ◽  
Kinetics Of

The effect of superplasticizers on rheology and early hydration kinetics of rice husk ash-blended cementitious systems

2017 ◽  
Vol 150 ◽  
pp. 511-519 ◽  
Author(s):  
Nsesheye Susan Msinjili ◽  
Wolfram Schmidt ◽  
Berta Mota ◽  
Sarah Leinitz ◽  
Hans-Carsten Kühne ◽  
...  
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Hydration Kinetics ◽  
Early Hydration ◽  
Cementitious Systems ◽  
Kinetics Of

scholarly journals Hydration Kinetics of Portland Cement–Silica Fume Binary System at Low Temperature

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3896 ◽  
Author(s):  
Yao Li ◽  
Yonggang Deng ◽  
Runqing Liu
Keyword(s):  
Binary System ◽  
Low Temperature ◽  
Portland Cement ◽  
Silica Fume ◽  
Rate Constant ◽  
Reaction Order ◽  
Cementitious Materials ◽  
Hydration Kinetics ◽  
K Value ◽  
Kinetics Of

Portland cement–silica fume binary cementitious materials are widely used in engineering construction and have been investigated from micro- to macroscopic aspects. However, the theoretical background on the hydration kinetics of the binary system has not been sufficiently covered in the literature. In this study, the hydration dynamic characteristics of the Portland cement–silica fume binary system curing at low temperature were investigated. Hydration kinetics equations were optimized and a hydration model followed by a computer program was developed to calculate the reaction rate constant K and the reaction order n. This model presented that the hydration process of the binary system at low temperature could be divided into three stages, namely, nucleation and growth (NG), interactions at phase boundaries (I), and diffusion (D). The n values for the binary system varied in the range of 1.2 to 1.6, indicating that the hydration of the binary system at low temperature was a complex elementary reaction. Silica fume can reduce the total heat at the later stage of the hydration and the reaction order n, but increase the heat flow at the accelerating stage and the hydration rate constant K. Low temperature prolonged the hydration induction period, decreased and delayed the secondary exothermic peak, as well as reduced the n and K value.

Modeling early-age hydration kinetics of Portland cement using flexible neural tree

2010 ◽  
Vol 21 (5) ◽  
pp. 877-889 ◽  
Author(s):  
Lin Wang ◽  
Bo Yang ◽  
Yuehui Chen ◽  
Xiuyang Zhao ◽  
Jun Chang ◽  
...  
Keyword(s):  
Portland Cement ◽  
Early Age ◽  
Hydration Kinetics ◽  
Kinetics Of ◽  
Early Age Hydration

Hydration kinetics of cements by Time-Domain Nuclear Magnetic Resonance: Application to Portland-cement-derived endodontic pastes

2012 ◽  
Vol 42 (3) ◽  
pp. 577-582 ◽  
Author(s):  
Villiam Bortolotti ◽  
Paola Fantazzini ◽  
Romano Mongiorgi ◽  
Salvatore Sauro ◽  
Silvano Zanna
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Portland Cement ◽  
Time Domain ◽  
Hydration Kinetics ◽  
Kinetics Of ◽  
Nuclear Magnetic
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