腾达试验仪器厂：

　　岩石膨胀压力试验仪概述：

　　该仪器为数字显示，手动转动丝杠施加压力，适用于各类岩石膨胀性试验中的体积不变条件下的膨胀压力试验，配有透水板，千分表等试验装置。

　　Rock Expansion Pressure Tester Overview:

　　The instrument is a digital display,and the pressure is manually applied to the screw.It is suitable for the expansion pressure test under the constant volume condition in various rock expansion tests.It is equipped with a test device such as a water permeable plate and a dial gauge.

　　岩石膨胀压力试验仪技术参数：

　　■大试验力：40KN

　　■精度：优于1级

　　■压缩空间：170mm

　　■立柱间距：165mm

　　■玻璃钢环直径：141mm

　　■玻璃刚环高度：66mm

　　■金属环直径：50mm

　　■金属环高度：55mm

　　■主机外形尺寸：320*320*500mm

　　Rock expansion pressure tester technical parameters:

　　■Large test force:40KN

　　■Accuracy:better than level 1

　　■Compression space:170mm

　　■Pitch spacing:165mm

　　■Glass steel ring diameter:141mm

　　■Glass ring height:66mm

　　■Metal ring diameter:50mm

　　■Metal ring height:55mm

　　■Mainframe dimensions:320*320*500mm

　　岩石膨胀压力试验仪试验步骤：

　　■将试件放人内壁涂有凡士林的金属套环内，在试件上下分别放置薄型滤纸和金属透水板。

　　■安装加压系统及量测试件变形的测表。

　　■应使仪器各部位和试件在同一轴线上，不得出现偏心荷载。

　　■对试件施加产生O.O1MPa压力的荷载，测读试件变形测表读数，每隔l0min读数1次，直至3次读数不变。

　　■加的荷载，应保持试件高度在整个试验过程始终不变。

　　■开始时每隔10min读数1次，连续3次读数差小于0.001mm时，改为每1h读数1次

　　■浸水后总试验时间不得少于48h.

　　■试验过程中，应保持水位不变。水温变化不得大于2℃

　　■试验结束后，应描述试件表面的泥化和软化现象。

　　Rock expansion pressure tester test steps:

　　■Place the test piece on the inner wall of the metal collar of Vaseline,and place thin filter paper and metal permeable plate on top of the test piece.

　　■Installation of the pressure system and the measurement of the deformation of the test piece.

　　■The parts of the instrument and the test piece should be on the same axis,and no eccentric load should occur.

　　■Apply a load of O.O1MPa pressure to the test piece,read the deformation table reading of the test piece,and read it every l0min until the reading is unchanged.

　　■For the applied load,the height of the test piece should be kept constant throughout the test.

　　■Read every 10 minutes at the beginning,and change the readings every 1h to 1 time for 3 consecutive readings.

　　■The total test time after water immersion shall not be less than 48h.

　　■The water level should be kept constant during the test.Water temperature change must not exceed 2°C

　　■After the test,the muddy and softened surface of the test piece should be described.

　　岩石膨胀压力试验仪试验记录：

　　膨胀性试验记录应包括岩石名称、试验编号、试件编号、试件描述、试件尺寸、温度、试验时间、轴向变形、径向变形和轴向荷载。

　　Rock expansion pressure tester test record:

　　The expansive test record shall include the rock name,test number,test piece number,test piece description,test piece size,temperature,test time,axial deformation,radial deformation and axial load.