Research Equipment-High Pressure Triaxial Equipment for Construction Materials

建筑材料在高静、动应力和高温下的性能对资源开采和处置领域的设施分析和设计非常重要，而且在更传统的结构中也是如此。由于缺乏实验，对这种材料行为的基本认识是不完整的。所提出的高压三轴设备将使此类实验研究成为可能。该三轴设备设计用于承受高达50000 psi的轴向压缩应力和围压，以及高达10000 psi的真轴向拉伸应力。该细胞将由当地一家专门从事高压设备的公司建造，而其他设备将由该公司和麻省理工学院的员工和学生建造。使用该设备进行的研究包括对岩石和混凝土的调查，这需要结合中等试件尺寸，大和动荷载，孔隙压力和高温。

Behavior of construction materials under high static and dynamic stresses and under high temperatures is very important for the analysis and design of facilities in the resource extraction and disposal domain, but also in more conventional structures. Basic knowledge on such material behavior is incomplete largely due to a lack of experimentation. The proposed high pressure triaxial equipment will make such experimental research possible. The triaxial apparatus is designed for axial compression stresses and confining pressures of up to 50000 psi and true axial tensile stress of up to 10000 psi. The cell will be built by a local firm specializing in high pressure equipment, while the other equipment will be built by this firm and MIT staff and students. Research to be performed with this apparatus includes investigations on rock and concrete, which requires the combination of medium specimen size, large and dynamic loads, pore pressures and high temperatures.