用上述速度进行第四次加荷,先至初载荷,先至初载荷PO(约为0.5MPA),保持30S,分别读两侧千分表△O,然后加荷至PA,保持约30,分别读两侧千分表△A,分别计算两侧变形增值△A-△O,并计算出平均值,设为△4;读取△A后即以同样速度卸荷至PO,保持约30,分别读两侧千分表读数△00,同上步骤,进行第五次加荷,求出△50回弹模量测定仪△5与△4之差应不大于0.00(L=150mm),否则,应中伏上述步骤,直至两次相邻加荷变形值之差符合要求,以后一次变形值△0为准。然后卸去千分表,以同样速度继续加荷至试件破坏,记下循环轴心抗压强度Ra. 是弹性模量测定仪试验结果计算回弹模量测定仪
参数规格
1、杠杆比: 10:1
2、承载板面积: Φ25.2mm-5cm2
3、Φ37.4mm-11cm2
4、Φ50.5mm-20cm2
HT-1混凝土回弹模量测定仪厂商热推公司介绍
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