The Experimental Method Research Of Inclusions Blowout Method For Determination Internal Temperature Of Concrete

The research of this article comes from the National Nature Science Foundation--the research of inclusions blowout testing the temperature of concrete in fire (item number 50678060). Structural damage identification and assessment techniques of structure after fire disaster are an important issue for sustainable development of urban disaster prevention and mitigation, accurate detection of the internal temperature of concrete is concrete fire damage assessment of major basic research, For this study, loss mitigation, social stability and sustainable economic development, has important practical significance.Systemic research on inclusion blowout method testing inner temperature of concrete has been carried out in experiment, which mainly includes:1. Based on the previous studies, we further expand the scope of experiment, widely used the building sand everywhere and the different quartz sand, research of our country construction sand inclusion blowout response spectrum characteristics and differences, full of natural sand proof used in occurrence of fluid inclusions more abundant, concrete has for inclusion in the burst of experimental conditions, and inclusions blowout classify curve.2. Confirmed further inclusion of bursting is strict controlled by temperature based the proving of the inclusions in the reaction of repetition can't reappear, and then compare and analysis the influence of inclusions blowout response spectrum lines from the sample's size and dosage. Through the experimental analysis method of cooling, heating rate, time and temperature for factors such as the time of inclusions blowout response spectrum lines, prove inclusions can accurately record experience has the highest temperature samples.3. In the concrete specimens of temperature field experiments, the results will be made in quartz, tests of thermocouples and test their different depths of fire temperature. Through inclusions temperature measurement results of the method of blowout of the measurement results with thermocouples, inspection inclusions temperature measurement method of reliability burst.Through the above research, geological field research methods and advanced testing method have been applied to the building fire damage assessment; the method has brought forward new ideas. It will provide an effective and accurate and practical detecting new technique for building fire damage assessment which the testing method and the basic theory of using the principle of concrete research inclusions blowout of the internal fire temperature; Through the experimental study, it offered the theory basis and the technical support for concrete inclusions temperature measurement method of blowout of practical engineering application and promotion.