Experimental Study and Numerical Analysis of Hydration Heat ...
Therefore, it is necessary to study the development law of hydration heat temperature and cracking mechanism [6, 7]. Previous studies have primarily focused on the time-history variation in the temperature field in early cast-in-place concrete structures through numerical simulations and experiments.
The research provides a refined numerical algorithm of the thermo-mechanical coupling field and contributes to the high quality of huge box-girder during the entire steam-curing process.
Experimental Study and Numerical Analysis of Hydration Heat Effect on ...
Previous studies have primarily focused on the time-history variation in the temperature field in early cast-in-place concrete structures through numerical simulations and experiments. Several studies have investigated the early hydration heat process of box girder structures [8,9,10,11], bridge decks [12,13], and test sections [14,15].
The initial temperature variation and stress distribution of the concrete in the segment were analyzed through finite element analysis based on the experimental data and temperature monitoring results. A suitable concrete pouring and maintenance plan for the box girder was proposed after the comparison of several construction schemes.
Useful Notes on Experimental Study And Numerical Analysis Of Hydration Heat
Experimental Study and Numerical Analysis of Hydration Heat Effect on Precast Prestressed Concrete Box Girder. Buildings, 15 (6), 859. https://doi.org/10.3390/buildings15060859
It served as a trial block for all steps of the execution process as well as a validating temperature measurement during cement hydration to confirm with the preliminary numerical analysis . Hydration heat , experimental measurements, numerical analysis , spillway. Keywords: 1.
A novel numerical method for predicting the hydration heat of concrete ...
In this study , a rational theoretical expression and effective numerical realization of the hydration temperature evolution of concrete are presented. The proposed novel numerical method is based on the Fourier's law for heat flux, the heat source function which is obtained from the dissolution of cement clinker by the modified Parrot and Killoh model, and also takes into account the Arrhenius ...
The key parameters that influence the hydration heat temperature, including the cement hydration heat release, cement content, height-width ratio of web, initial temperature, convective coefficient of top plate surface, were analyzed. An anti-cracking case based on parameters analysis was put forward.
Hydration Heat in Mass Concrete with Iron Tailings Powder
Experimental and numerical simulation studies on the hydration heat of the iron tailings powder concrete (ITPC) were conducted.
In this study , a rational theoretical expression and effective numerical realization of the hydration temperature evolution of concrete are presented. The proposed novel numerical method is based ...