TABLE of CONTENTS
1. INTRODUCTION .................................................................................................................................................. 1
2. INSTALLATION INSTRUCTIONS .................................................................................................................... 2
2.1.1 Assembling the Spacer Block into the Crackmeter ..................................................................................... 2
2.1.2 Mounting the Crackmeter ........................................................................................................................... 3
3. TAKING READINGS ............................................................................................................................................ 4
3.3.1 Taking Readings with a Dial Indicator ...................................................................................................... 4
3.3.2 Taking Readings with a Depth Micrometer ................................................................................................ 5
APPENDIX A. SPECIFICATIONS .......................................................................................................................... 6
FIGURES
F
IGURE
1
-
4415-5
C
RACKMETER WITH
S
PACER
B
LOCK
I
NSTALLED
............................................................................. 2
2
R
EADING
L
OCATIONS FOR
M
ODELS
4415-1
&
4415-3 ................................................................................. 4
3
ODEL
4415-5 ................................................................................................... 4
TABLES
T
ABLE
PECIFICATIONS
............................................................................................................................................ 6
Страница 1: ...ny means without the written consent of Geokon The information contained herein is believed to be accurate and reliable However Geokon assumes no responsibility for errors omissions or misinterpretation The information herein is subject to change without notification Copyright 2015 2019 by Geokon Doc Rev C 8 8 19 ...
Страница 2: ......
Страница 3: ...nnel There are no warranties except as stated herein There are no other warranties expressed or implied including but not limited to the implied warranties of merchantability and of fitness for a particular purpose Geokon is not responsible for any damages or losses caused to other equipment whether direct indirect incidental special or consequential which the purchaser may experience as a result ...
Страница 4: ...meter 3 3 TAKING READINGS 4 3 3 1 Taking Readings with a Dial Indicator 4 3 3 2 Taking Readings with a Depth Micrometer 5 APPENDIX A SPECIFICATIONS 6 FIGURES FIGURE 1 4415 5 CRACKMETER WITH SPACER BLOCK INSTALLED 2 FIGURE 2 READING LOCATIONS FOR MODELS 4415 1 4415 3 4 FIGURE 3 READING LOCATIONS FOR MODEL 4415 5 4 TABLES TABLE 1 SPECIFICATIONS 6 ...
Страница 5: ...he other side of the crack The anchors are made from two lengths of 4 rebar six inches long grouted into boreholes drilled on either side of the crack The crackmeter will measure any widening of the crack and the extent of any shearing movements in two directions A typical installation of the 3D Mechanical Crackmeter is shown in Figure 1 Figure 1 Typical Installation Once installed measurements ar...
Страница 6: ...e right side of the cube into the gap between the spacer block and the metal bar attached to it until the edge of the cube is pressed against the spacer block 2 Next slide the spacer block downward until it is resting flat against the bottom of the cube 3 Hand tighten the two cap screws that do not have washers installed until they are in firm contact with the back side of the cube 4 Mount the rec...
Страница 7: ...les with quick setting grout and push the rebars into the grout filled holes 4 Wait for the grout to set up 5 Remove the cap screws holding the Delrin spacer block s in place then use a screwdriver or other appropriate tool to remove the spacers from the crackmeter 6 Initial readings must be carefully taken and accurately recorded at the time of installation These readings serve as a reference poi...
Страница 8: ...k Figure 2 Reading Locations for Models 4415 1 4415 3 Figure 3 Reading Locations for Model 4415 5 3 3 1 Taking Readings with a Dial Indicator 1 To read the Z axis slide the tip of the dial indicator through the hole in the rectangular bar of the crack meter until it is resting on the surface of the three sided cube 2 Press the collar of the indicator firmly against the surface of the square bar an...
Страница 9: ...ometer through the hole in the rectangular bar of the crack meter 2 Press the base of the micrometer firmly against the surface of the square bar and then adjust the depth of the micrometer until the tip is touching the surface of the three sided cube Record the measured depth as the Z axis reading 3 Take the X and Y axes readings through the two holes in the three sided box in a similar manner as...
Страница 10: ...n each X Y Z axis 4415 1 0 12 5 mm 4415 3 0 25 mm 4415 5 0 50 mm Material Stainless steel Anchors 4 rebar Anchor Dimensions Dia Length 12 mm 150 mm TYPICAL DEPTH MICROMETER DIAL GAUGE Range 50 150 mm Resolution 0 01 mm Accuracy 0 05 mm Table 1 Specifications ...
