Research Equipment-High Pressure Triaxial Equipment for Construction Materials

建筑材料在高静动应力和高温下的行为对于资源开采和处置领域的设施分析和设计非常重要，在更常规的结构中也是如此。关于这种材料行为的基本知识是不完整的，这主要是因为缺乏实验。拟议的高压三轴装置将使这种实验研究成为可能。三轴仪的设计可承受高达50000磅/平方英寸的轴向压应力和围压，以及高达10000磅/平方英寸的真实轴向拉应力。该单元将由当地一家专门生产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教职员工和学生建造。使用该仪器进行的研究包括对岩石和混凝土的研究，这需要结合中等大小的试件、大的动态载荷、孔压和高温。

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.