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Mathematical Problems in Engineering
Volume 2014 (2014), Article ID 514606, 10 pages
http://dx.doi.org/10.1155/2014/514606
Research Article

A Real-Time Temperature Data Transmission Approach for Intelligent Cooling Control of Mass Concrete

State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China

Received 28 December 2013; Accepted 7 February 2014; Published 12 March 2014

Academic Editor: Ting-Hua Yi

Copyright © 2014 Peng Lin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The primary aim of the study presented in this paper is to propose a real-time temperature data transmission approach for intelligent cooling control of mass concrete. A mathematical description of a digital temperature control model is introduced in detail. Based on pipe mounted and electrically linked temperature sensors, together with postdata handling hardware and software, a stable, real-time, highly effective temperature data transmission solution technique is developed and utilized within the intelligent mass concrete cooling control system. Once the user has issued the relevant command, the proposed programmable logic controllers (PLC) code performs all necessary steps without further interaction. The code can control the hardware, obtain, read, and perform calculations, and display the data accurately. Hardening concrete is an aggregate of complex physicochemical processes including the liberation of heat. The proposed control system prevented unwanted structural change within the massive concrete blocks caused by these exothermic processes based on an application case study analysis. In conclusion, the proposed temperature data transmission approach has proved very useful for the temperature monitoring of a high arch dam and is able to control thermal stresses in mass concrete for similar projects involving mass concrete.