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首页> 外文会议>International Structural Engineering and Construction Conference(ISEC-03); 20050920-23; Shunan(JP) >Improvement of buried rosette gage for measurement strain due to autogeneous shrinkage of cement paste
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Improvement of buried rosette gage for measurement strain due to autogeneous shrinkage of cement paste

机译：水泥浆体自发收缩引起的用于测量应变的埋入式玫瑰花规的改进

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It is important to known that change in volume to control a concrete crack. The autogeneous shrinkage due to the hydration reaction of cement was never taken into consideration by the analysis of the usual crack and design with usual concrete. Recently, it is reported that the extremely large autogeneous shrinkage occurs by the cement paste of small water-cement ratio. However, it is impossible to know the maximum or minimum value and their directions of strain because this work was carried out using buried one-dimensional strain gage. In this study, the buried rosette strain gage is improved to measure the strain due to autogeneous shrinkage of cement paste. Mohr's strain circle is able to be drawn using strains on three directions obtained from the rosette gage for plane strain. And it becomes that the strain on arbitrary direction is able to be obtained using this circle.
机译：重要的是要知道改变体积来控制混凝土裂缝。通过分析常规裂缝和常规混凝土设计，从未考虑到由于水泥的水合反应而产生的自发收缩。近来，据报道，水灰比小的水泥浆发生了很大的自生收缩。但是，不可能知道最大值或最小值及其应变方向，因为这项工作是使用埋藏的一维应变计进行的。在这项研究中，改进了埋入式玫瑰花结应变计，以测量由于水泥浆体自发收缩引起的应变。莫尔应变圆可以使用从玫瑰花规进行平面应变的三个方向上的应变绘制。并且，使用该圆能够求出任意方向的应变。

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