Effects of D2O and Mixing on the Early Hydration Kinetics of Tricalcium Silicate

1999 ◽  
Vol 11 (7) ◽  
pp. 1907-1914 ◽  
Author(s):  
Jeffrey J. Thomas ◽  
Hamlin M. Jennings
Keyword(s):  
Tricalcium Silicate ◽  
Hydration Kinetics ◽  
Early Hydration ◽  
Kinetics Of

Effect of the densification of C-S-H on hydration kinetics of tricalcium silicate

2017 ◽  
Vol 101 (6) ◽  
pp. 2438-2449 ◽  
Author(s):  
Shiju Joseph ◽  
Shashank Bishnoi ◽  
Koen Van Balen ◽  
Özlem Cizer
Keyword(s):  
Tricalcium Silicate ◽  
Hydration Kinetics ◽  
Kinetics Of

scholarly journals Effects of Expansive Agents on the Early Hydration Kinetics of Cementitious Binders

Materials ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 1900 ◽  
Author(s):  
Miao Miao ◽  
Qingyang Liu ◽  
Jian Zhou ◽  
Jingjing Feng
Keyword(s):  
Fly Ash ◽  
Hydration Heat ◽  
Mineral Admixture ◽  
Mineral Admixtures ◽  
Hydration Reaction ◽  
Hydration Kinetics ◽  
Early Hydration ◽  
Expansive Agent ◽  
Mechanical Performances ◽  
Kinetics Of

The addition of expansive agents could overcome the main disadvantages of raw concrete including high brittleness and low tensile strength. Few studies have investigated the early hydration kinetics of expansive cementitious binders, though the findings from the early hydration kinetics are helpful for understanding their technical performances. In this study, mixtures of 3CaO•3Al2O3•CaSO4 and CaSO4 (i.e., ZY-type™ expansive agent) with different proportions of mineral admixtures (e.g., fly ash and slag) were added into cement pastes to investigate the early hydration kinetics mechanism of expansive cementitious binders. Early hydration heat evolution rate and cumulative hydration heat were measured by isothermal calorimeter. Kinetic parameters were estimated based on the Krstulovic–Dabic model and Knudsen equations. Mechanical performances of expansive cementitious binders were tested in order to evaluate if they met the basic requirements of shrinkage-compensating materials in technical use. The early hydration heat released from cementitious binders containing ZY-type™ expansive agent was much greater than that released by pure cement, supporting the idea that addition of the expansive agent would improve the reaction of cement. The early hydration kinetic rates were decreased due to the reactions of the mineral admixture (e.g., fly ash or slag) and the ZY-type™ expansive agent in the cement system. The hydration reaction of cementitious binders containing ZY-type™ expansive agent obeyed the Krstulovic–Dabic model well. Three processes are involved in the hydration reaction of cementitious binders containing ZY-type™ expansive agent. These are nucleation and crystal growth (NG), interactions at phase boundaries (I), and diffusion (D). The 14-day expansion rates of cementitious binders containing ZY-type™ expansive agent are in the range of 2.0 × 10−4 to 3.5 × 10−4, which could meet the basic requirements of anti-cracking performances in technical use according to Chinese industry standard JGJ/T 178-2009. This study could provide an insight into understanding the effects of expansive agents on the hydration and mechanical performances of cementitious binders.

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 Early Hydration Kinetics of Cementitious Materials Containing Different Steel Slag Powder Contents

2016 ◽  
Vol 34 (4) ◽  
pp. 590-596 ◽  
Author(s):  
Xiaowei Cui ◽  
Wen Ni ◽  
Chao Ren
Keyword(s):  
Steel Slag ◽  
Cementitious Materials ◽  
Hydration Kinetics ◽  
Early Hydration ◽  
Slag Powder ◽  
Steel Slag Powder ◽  
Kinetics Of

scholarly journals Effect of particle size distribution of metakaolin on hydration kinetics of tricalcium silicate

2019 ◽  
Vol 102 (10) ◽  
pp. 5976-5988 ◽  
Author(s):  
Jonathan Lapeyre ◽  
Hongyan Ma ◽  
Aditya Kumar
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Tricalcium Silicate ◽  
Hydration Kinetics ◽  
Effect Of Particle Size ◽  
Kinetics Of

Hydration kinetics of tricalcium silicate solid solutions at early ages

1978 ◽  
Vol 8 (1) ◽  
pp. 61-72 ◽  
Author(s):  
G.L. Valenti ◽  
V. Sabatelli ◽  
B. Marchese
Keyword(s):  
Solid Solutions ◽  
Tricalcium Silicate ◽  
Hydration Kinetics ◽  
Kinetics Of

Hydration kinetics of tricalcium silicate by calorimetric methods

2011 ◽  
Vol 364 (1) ◽  
pp. 118-124 ◽  
Author(s):  
Francesca Ridi ◽  
Emiliano Fratini ◽  
Paola Luciani ◽  
Frank Winnefeld ◽  
Piero Baglioni
Keyword(s):  
Tricalcium Silicate ◽  
Hydration Kinetics ◽  
Calorimetric Methods ◽  
Kinetics Of
Sign in / Sign up

Export Citation Format

Share Document