CAJ | 학술논문

高强度混凝土高温下易发生爆裂破坏，升温时混凝土微细观孔隙结构内部蒸汽压的变化与爆裂密切相关。本文通过自行设计的蒸汽压装置测量了混凝土从室温加热至600℃时孔隙结构中蒸汽压的变化，分析了孔隙蒸汽压随温度变化的规律，为探究混凝土高温爆裂蒸汽压机理提供了一种可行的试验方法。
고강도혼응토고온하역발생폭렬파배，승온시혼응토미세관공극결구내부증기압적변화여폭렬밀절상관。본문통과자행설계적증기압장치측량료혼응토종실온가열지600℃시공극결구중증기압적변화，분석료공극증기압수온도변화적규률，위탐구혼응토고온폭렬증기압궤리제공료일충가행적시험방법。
High-strength concrete is easy to burst with damage under high temperature,and the change of the inter?nal vapor pressure of the concrete micro pore structure is closely related to the detonation when the temperature rises. In this paper, through the vapor pressure device that designed by ourselves, we measured the change of the internal vapor pressure of the concrete pore structure under the temperature changing from room temperature to 600℃, and analyzed the rules of the pore vapor pressure changing along with the temperature. This work provides a feasible ex?perimental method for exploring the concrete high temperature burst mechanism of vapor pressure.