mga research corporation

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1 mga research corporation UNDERGROUND TECHNOLOGIES MAN-HOLE CONSTRUCTION VERTICAL STATIC LOAD TEST SERIES (PO# 11521) 446 executive drive troy, mi / fax 248 /

2 mga research corporation TEST REPORT MGA REPORT NO.: C07Q TEST (S) PERFORMED ON: May 11, 2007 TEST DESCRIPTION: ITEM DESCRIPTION: PROCEDURE: TEST REFERENCE NUMBER (S): TEST LABORATORY: Vertical Static Load Man-Hole Construction (PO# 11521) ASHTO HS-25 Spec VE7314-VE7316 MGA Research Corporation 446 Executive Drive Troy, Michigan SUBMITTED TO: Mike Mortier Underground Technologies Elliott Troy, Michigan MGA PERSONNEL: Brad Reaume Project Leader Test Personnel: Gerald Roesser * The results presented in this report relate only to the specified test items. ** This report shall not be reproduced except in full, without the written approval of the laboratory. 446 executive drive troy, mi / fax 248 /

3 MGA Report No.: C07Q Customer: Underground Technologies Page 2 of 26 Introduction: MGA Research is to perform test and provide testing results for the Underground Technologies man-hole adjustment ring. The test is to prove that the man-hole construction will pass the ASHTO HS 25 and consequently the HS 20 testing protocol. ASHTO HS-25 Testing Protocol: The ASHTO HS-25 testing protocol represents the loading of a 25 ton (50,000 lbs ) semi-truck would exert onto a highway bridge. Since there is no specification for compression strength of man-hole adjustment rings, this testing protocol will be used. See Appendix A. Load Calculations: When investigating the free body diagram of the protocol; for HS-25 the load is determined by using 40,000 lbs times a factor of 0.4, thus the loads are calculated. Static Load: 16,000 lbs on a 10 x 20 patch. Dynamic Load: 1.3 times the static load; 20,800 lbs. This load simulates the load of the tire patch dropping one foot on to the manhole cover. * Please note the ASHTO HS-25 doubles the weight required on the tire patch. Standard axles are rated at a maximum capacity of 16,000 lbs. total. Normal maximum weight exerted on each wheel combination or patch in a real world scenario would be 8,000 lbs.

4 MGA Report No.: C07Q Customer: Underground Technologies Page 3 of 26 Test Setup: The Grade Ring and Finish Ring were placed on a base plate of the Crusher Ld. Cell which has a capacity of 50,000 lbs. Deflection measurements were taken digitally with a MTS Multi-purpose static analyzer. Two cameras were set up to monitor the test; one for a global view, two, a side profile of stacked rings. The load is exerted on the manhole cover with a 10 x 20 plate as specified to reflect the AASHTO-HS25 specification. Test Samples: Three samples were tested: # Configuration Test Identification 1) 5 ½ Grade Ring with 1 ½ Finish Ring VE7314 2) 1 ½ Grade Ring with 1 ½ Finish Ring VE7315 3) 2 Restoration Ring ( No grade or finish ) VE7316 Test Procedures: Two test samples will consist of a grade and finish ring of different height configurations. The third test sample consisted of a single Restoration Ring. The test samples The load of the hydraulic test apparatus will exert on top of the manhole frame and cover assembly. Step 1: Apply in 5,000 lb increments and hold for five minutes while taking measurements. Step 2: Increase load to 10,000 lbs. and hold for five minutes while taking measurements. Step 3: Apply additional 6,000 lbs. and hold for 10 minutes. This will bring the total load to 16,000 lbs. which will represents the maximum load for the AASHTO-HS25 static test. Step 4: Increase load to 20,800 take measurements, backing load off to for 500ms and reloading to the 20,800 in 500 ms. Repeat 3 times. This load will represent the maximum load for the AASHTO-HS25 dynamic test. Step 5: Increase load to 40,000 lbs. and hold. This is the destructive test to indicate the permanent set or deflection of an excessive load.

5 MGA Report No.: C07Q Customer: Underground Technologies Page 4 of 26 Results: Load (lbs)/sample (in) VE7314- ( 5.5G & 1.5F) VE7315- ( 1.5G & 1.5F) VE7316- ( 2R) 5, , ,000 HS-25 Static ,800 HS-25 Dynamic ,000 Destructive Conclusion: The results table shows the deflection relative to the load step. The deflections were low at the specified AASHTO HS-25 Dynamic load (20,800 lbs.) with no permanent set to the Grade or Finish Ring. All rings rebounded to original state. The permanent set or deflection occurred at the 40,000 lb. destructive test. The permanent deflection was measured at 1/32 for the Grade and Finish rings. Although localized bucking phenomena occurred at the 40,000 lb. load, the test samples remained intact with no cracking of the exterior seal. See Appendix C for Pre and Post-Test Photographs as well as the resultant graphs. Additional Information can be found in the following appendices Appendix A Customer Related Documentation ASHTO HS Appendix B System Calibration Information...7 Appendix C Test Data Plots and Photographs...10

6 MGA Report No.: C07Q Customer: Underground Technologies Page 5 of 26 Appendix A Customer Related Documentation ASHTO HS-25

7 MGA Report No.: C07Q Customer: Underground Technologies Page 6 of 26

8 MGA Report No.: C07Q Customer: Underground Technologies Page 7 of 26 Appendix B System Calibration Information

9 MGA Report No.: C07Q Customer: Underground Technologies Page 8 of 26 mga research corporation CALIBRATION CERTIFICATE Name: Crusher Ld. Cell Model: 1220GR-50K Sensor Information Reference Sensor Information Name: Interface 25 K Ref. Model: 1220ACK S/N: S/N: Capacity: lb Capacity: lb Calibration Date: 01/17/2007 Calibration Date: 12/07/2006 Calibrated By: Interface Test Reference Number: txt New DLR (100k, Units: lb): Linearity (%) % Difference in DLR (New vs. Old): 0.1 Temperature ( o F): 70 Humidity (%): 27 Performed By: Approved By: All calibrations are traceable to the National Institute of Standards and Technology. Estimated uncertainty of the measurement is ± 0.4%. All certification data and equipment are on file for inspection at your request. Best uncertainties represent expanded uncertainties expressed at approximately the 95% confidence level using a coverage factor k= executive drive troy, mi / fax 248 /

10 MGA Report No.: C07Q Customer: Underground Technologies Page 9 of 26

11 MGA Report No.: C07Q Customer: Underground Technologies Page 10 of 26 Appendix C Test Data Plots and Photographs

12 MGA Report No.: C07Q Customer: Underground Technologies Page 11 of 26 Underground Technologies VE7314 C07Q " Grade 1.5" Finish Force (lbs) Series Time (s) Underground Technologies VE7314 C07Q " Grade 1.5" Finish Force (lbs) Series Displacement (in)

13 MGA Report No.: C07Q Customer: Underground Technologies Page 12 of 26 Underground Technologies VE7314 C07Q " Grade 1.5" Finish Deflection (in) in Time (s)

14 MGA Report No.: C07Q Customer: Underground Technologies Page 13 of 26 Pre-Test Photo #1 for Test # VE7314 Pre-Test Photo #2 for Test # VE7314

15 MGA Report No.: C07Q Customer: Underground Technologies Page 14 of 26 Pre-Test Photo #3 for Test # VE7314

16 MGA Report No.: C07Q Customer: Underground Technologies Page 15 of 26 Post-Test Photo #1 for Test # VE7314 Post-Test Photo #2 for Test # VE7314

17 MGA Report No.: C07Q Customer: Underground Technologies Page 16 of 26 Post-Test Photo #3 for Test # VE7314 Post-Test Photo #4 for Test # VE7314

18 MGA Report No.: C07Q Customer: Underground Technologies Page 17 of 26 Underground Technologies VE7315 C07Q " Grade 1.5" Finish Force (lbs) Time (s) Underground Technologies VE7315 C07Q " Grade 1.5" Finish Force (lbs) Series Displacement (in)

19 MGA Report No.: C07Q Customer: Underground Technologies Page 18 of 26 Underground Technologies VE7315 C07Q " Grade 1.5" Finish Deflection (in) in Time (s)

20 MGA Report No.: C07Q Customer: Underground Technologies Page 19 of 26 Pre-Test Photo #1 for Test # VE7315 Pre-Test Photo #2 for Test # VE7315

21 MGA Report No.: C07Q Customer: Underground Technologies Page 20 of 26 Pre-Test Photo #3 for Test # VE7315 Post-Test Photo #1 for Test # VE7315

22 MGA Report No.: C07Q Customer: Underground Technologies Page 21 of 26 Post-Test Photo #2 for Test # VE7315 Post-Test Photo #3 for Test # VE7315

23 MGA Report No.: C07Q Customer: Underground Technologies Page 22 of 26 Underground Technologies VE7316 C07Q " Restoration Force (lbs) Time (s) Underground Technologies VE7316 C07Q " Restoration Force (lbs) Series Displacement (in)

24 MGA Report No.: C07Q Customer: Underground Technologies Page 23 of 26 Underground Technologies VE7316 C07Q " Restoration Deflection (in) in Time (s)

25 MGA Report No.: C07Q Customer: Underground Technologies Page 24 of 26 Pre-Test Photo #1 for Test # VE7316

26 MGA Report No.: C07Q Customer: Underground Technologies Page 25 of 26 Post-Test Photo #1 for Test # VE7316 Post-Test Photo #2 for Test # VE7316

27 MGA Report No.: C07Q Customer: Underground Technologies Page 26 of 26 Post-Test Photo #3 for Test # VE7316 Post-Test Photo #4 for Test # VE7316