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    • 38. 发明专利
    • Method and device for measuring compressive strength of concrete
    • 用于测量混凝土压实强度的方法和装置
    • JPS6190037A
    • 1986-05-08
    • JP21194684
    • 1984-10-09
    • Takenaka Doboku Co LtdTakenaka Komuten Co Ltd
    • HAGIWARA TADAHARUSUZUKI AKIOMOROZUMI MASAKIMIMORIKAWA TAKENORISASAKI HIROYUKI
    • G01N3/08G01N3/00G01N3/30G01N3/52G01N33/38
    • G01N3/307G01N33/383
    • PURPOSE:To measure compressive strength easily and accurately by causing a weight body to strike a pressure receiving plate adhered to concrete and calculating the ratio of the striking speed and repulsion speed. CONSTITUTION:When a measurement is taken, a measuring device 10 is fitted to a case 18 and put opposite the window 16 of a form 14. Then, a moving cylinder 36 is gripped and moved in the axial direction of a fixed cylinder 14 against the energizing force of a large compression coil spring40, and then a chuck 46 intrudes into the neck part 50 of the weight body 48 with the energizing force. When the moving cylinder 36 is extracted from the fixed cylinder 34 with the energizing force of the large compression coil spring 40 and the weight body 48 is elevated against the energizing force of a small compression coil spring 60 at the same time, so that a striking ready state is entered. A reset button 54 is pressed into a spring seat 38 and then a reset shaft 58 spreads the chuck 46, so the weight body 48 is released from being gripped to strike the pressure receiving plate 30 with the energizing force of the small compression coil spring 60. This striking speed is measured form the magnetic flux density variation of the coil 62.
    • 目的:通过使重量体撞击粘附在混凝土上的受压板并计算撞击速度和排斥速度的比例,来容易且准确地测量抗压强度。 构成:在进行测定时,将测定装置10装配到壳体18上并与形状14的窗口16相对。然后,移动筒体36沿着固定筒体14的轴向夹持并移动, 大的压缩螺旋弹簧40的通电力,然后卡盘46以激励力侵入到重量体48的颈部50中。 当大压缩螺旋弹簧40的激励力和重量体48相对于小压缩螺旋弹簧60的激励力同时升高移动气缸36从固定气缸34抽出时, 就绪状态进入。 复位按钮54被压入弹簧座38中,然后复位轴58扩展卡盘46,因此重量体48被释放以被小压缩螺旋弹簧60的激励力夹紧以撞击受压板30 该击打速度由线圈62的磁通密度变化测量。