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    • 5. 发明公开
    • METHOD OF DETERMINING STRESS HISTORY AND COMPOSITE MATERIAL OBTAINED MAINLY FROM CEMENT
    • 方法用于确定负载历史和复合材质主要有水泥将获得
    • EP2357459A1
    • 2011-08-17
    • EP08878130.7
    • 2008-11-17
    • Japan Agency for Marine-Earth Science and Technology
    • SAKAGUCHI, AritoSAKAGUCHI, Hide
    • G01L1/00C04B14/28C04B28/02G01N3/00G01N9/36G01N33/38
    • G01M5/0041C04B40/0096G01M5/0033G01N9/36G01N33/383G01N2203/0069C04B14/28C04B20/0076C04B28/02
    • There are provided a method by which a stress history of an abject can be measured with high reliability if the object, which has temporarily been elastically deformed upon receiving an external force, recovers from the elastic deformation, and a composite material containing cement as a main component, of which a stress history can be measured with high reliability without reducing the strength of the material itself and without breaking the structure. To achieve the above-mentioned advantages, the method includes the steps of: acquiring an initial value of a twin density for calcite particles contained in an object to be measured that is elastically deformable upon receiving an external force; and measuring a history of stresses received by the object to be measured on the basis of a difference from the initial value in respect of the twin density for the calcite particles after the object to be measured receives the external force. The composite material includes calcite particles, for which a twin density is known and which are mixed to be distributed in the material, partially replacing an aggregate of the material.
    • 本发明提供由一个下贱的应力历史能够以高可靠性进行测量,如果对象,它具有暂时在外力接收被弹性变形,从弹性变形状态复原的方法,和复合材料含水泥作为主要 组件,该组件的应力历史能够以高可靠性而不降低材料本身的强度和不破坏结构来测量。 为了实现上述优点,该方法包括如下步骤:在为方解石颗粒的双密度的初始值获得在对象包含在要被测量没有在接收到的外力是可弹性变形; 并测量由所述对象接收到的应力的历史是从初始值的差值的基础上,在尊重方解石颗粒的双密度的待测量的对象接收到外力后测定。 所述复合材料包括方解石颗粒,其中的双密度是已知的,并且混合以分布在材料中,部分取代的材料的聚集体。