|
Vol.19, No.1, 2019, pp. 8–12 |
|
EVALUATION OF THE IMPACT OF PARAMETER INPUTS OF CONCRETE MIX ON THE DISTRIBUTION OF TEMPERATURE IN THE MASS CONCRETE STRUCTURE Trong Chuc Nguyen1, Anh Kiet Bui2 1)Moscow State University of Civil Engineering (MGSU), Moscow, Russia, ntchuc.mta198@gmail.com 2)Faculty of Civil Engineering, Ho Chi Minh City Open University, Vietnam |
|
Abstract The paper presents the impact of parameters, such as cement content and initial temperature of concrete, on the temperature distribution in the body of the early age mass concrete structure. The cement content and initial temperature of concrete mix used in the study are limited within 250-500 kg/m3 and 15-25°C, in respect. Thermal analysis is conducted by using Finite Element Midas Civil 2011. Then, the experiment planning method is used to establish a mathematical function that allows determining the maximal temperature in the concrete structure body. The study indicates that the cement content plays a decisive role compared to the initial temperature of concrete in determining maximal temperature. Besides, the achieved function reflects the impact and correlation of mentioned parameters on the temperature profile of the mass concrete structure. Keywords: heat of hydration, temperature gradient, crack, mass concrete, mathematical model |
|
full article (675 kB)
|
