About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Martynov M.M. – аssistant E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Ibragimov R.A. – candidate of technical sciences, senior lecturer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Izotov V.S. – doctor of the technical sciences, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 |
| Title of the article | Development of the construction of formwork of thermoactive shield |
| Abstract. | The paper presents the construction of formwork of thermoactive shield and the results of impact of concrete mixture electric heating on the change in temperature of concrete at the different points of heating and concrete own heat emission by «thermos» method. Shows the placement of thermocouples in the body design of the concrete. According to the experimental results obtained, that the strength of concrete in the area of greatest warming is 43 % of brand strength, and in the area of the smallest heating – 34 % of brand strength. Design flaw was a big heat loss at the corners of formwork design, despite the deployment in the area of heated elements. To determine the effectiveness of the method of timbering «thermos» was defined own heat concrete. As a control measuring equipment was selected device UKT 38 SCH4 TC (a device for measuring and monitoring temperature Eight) production NPF «Aries». Sensors to measure the temperature of concrete were needle thermocouple immersion type. The experimental results showed that the greatest heat emission takes place in the core of the formwork, which was recorded by thermocouples. These results indicate the high efficiency of the thermoactive formwork, and the lack of concrete heating in the corners of the formwork. |
| Keywords. | Panel forms, concrete electric heating, winter concreting. |
| For citations: | Martynov M.M., Ibragimov R.A., Izotov V.S. Development of the construction of formwork of thermoactive shield // Izvestiya KGASU. 2013. №3(25) P.110-114. |
