DateLaboratory Testing of Portland Cement Concrete Patch Material ...

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Table 5. Compressive Strength Test ResultsSAMPLEMODIFIED PATCHCOMPRESSIVE STRENGTH (psi)NUMBER MATERIAL DESCRIPTIONS 4 HR. 6 HR. 8 HR. 1 DAY 3 DAYS 7 DAYS 28 DAYS1 Mn/DOT 3U18 (CONTROL) 70 240 670 4425 6755 7210 68852 Mn/DOT 3U18 w/ Type K Cement NA NA 255 1395 2410 3385 53753 Mn/DOT 3U18 w/ Komponent 45 155 545 2945 4200 5170 51754 Mn/DOT 3U18 w/ Denka #20 (50.56 lb/yd 3 or 30 kg/m 3 ) 50 305 895 4215 5020 5555 65305 Mn/DOT 3U18 w/ Denka #20 (42.14 lb/yd 3 or 25 kg/m 3 ) 55 235 730 3945 5490 5670 61806 Mn/DOT 3U18 w/ Denka 100R (50.56 lb/yd 3 or 30 kg/m 3 ) 70 310 1070 4225 6050 6000 68507 Mn/DOT 3U18 w/ Denka 100R (42.14 lb/yd 3 or 25 kg/m 3 ) 55 195 885 4150 6335 6145 663510 Mn/DOT 3U18 w/ Tetraguard AS20 45 160 695 3545 4850 5490 659011 Mn/DOT 3U18 w/ Solite (LWFA) 45 155 680 3715 6045 6965 616512 Mn/DOT 3U18 w/ Hydrocure (LWFA) 35 185 235 4425 6535 7235 6590All of the cylinders, except for those containing Type K cement, had hardened enough to be tested at ages of 4and 6 hours. The cylinders made with the patch material containing Type K cement did not harden enough to betested until they had reached an age of 8 hours.For current dowel bar retrofit projects, WisDOT’s DBR warranty requires rapid set patchmaterials to reach a compressive strength of 3,000 psi at an age of three hours. The highearly strength of the patch material is necessary so that traffic can be placed back on theretrofitted lanes soon after the process is completed. As shown in Table 5 and Figure 9,most of the patch materials, including the control, did not achieve a compressive strengthof 3,000 psi until sometime between 8 hours and 1 day. The patch material made withType K cement (Sample 2) was the slowest to gain its strength, not achieving a strengthof 3,000 psi until sometime between 3 and 7 days.Since DBR projects often involve traffic lane closures exceeding 24 hours, thecompressive strength requirement (i.e. 3,000 psi in 3 hours) of WisDOT’s currentwarranty specification may not always be relevant. Thus, the compressive strength testresults were not used as a testing constraint for this study, and none of the patch materialswere eliminated from Phase II testing based on the compressive strength test results.Based on the laboratory testing results of this study, the modified Mn/DOT 3U18 patchmaterials that show the most promise will be tested in field applications. Pending theresults of this field evaluation, if it is demonstrated that a slower rate of strength gaindoes not result in extended traffic delays and does not have any negative impacts on thepatch material (i.e. the patch material is able to withstand the thermal stresses exerted bythe surrounding pavement and the steel dowel bars), modifications to the DBR warrantycompressive strength requirement, for DBR projects with lane closures of at least 24hours, will be recommended.19
Mn/DOT 3U18 (CONTROL) Mn/DOT 3U18 w/ Type K CementMn/DOT 3U18 w/ Komponent Mn/DOT 3U18 w/ Denka #20 (50.56 lb/yd 3 or 3 or 30 30 kg/m kg/m 3 )3 )Mn/DOT 3U18 w/ Denka #20 (42.14 lb/yd 3 or 3 or 25 25 kg/m kg/m 3 ) 3 ) Mn/DOT 3U18 w/ Denka 100R (50.56 lb/yd 3 or 3 or 30 30 kg/m kg/m 3 )3 )Mn/DOT 3U18 w/ Denka 100R (42.14 lb/yd 3 or 3 or 25 25 kg/m kg/m 3 ) 3 ) Mn/DOT 3U18 w/ Tetraguard AS20Mn/DOT 3U18 w/ Solite (LWFA) Mn/DOT 3U18 w/ Hydrocure (LWFA)Age (hours)4 6 82401000Compressive Strength ( psi)2000300040005000Figure 9. Compressive Strength Test Results Showing Rate of Early Strength Gain20
Page 1 and 2: REPORT NUMBER: WI-01-04LABORATORY T
Page 3 and 4: LABORATORY TESTING OF PORTLAND CEME
Page 5 and 6: TABLE OF CONTENTSTechnical Report D
Page 7 and 8: Table 12. Concrete-to-Concrete Bond
Page 9 and 10: Table 1. Rapid Setting Concrete Pat
Page 11 and 12: addition to these techniques, which
Page 13 and 14: manufactured by Perstorp Polyols, I
Page 15 and 16: Performance results reported by the
Page 17 and 18: 4.4 Concrete Curing CompoundsTable
Page 19 and 20: - 5.1.3 Air Content -The concrete s
Page 21 and 22: Figure 5. Time of Set Test Results2
Page 23 and 24: The change in height test results a
Page 25: - 5.1.6 Compressive Strength -A set
Page 29 and 30: - 5.1.7 Phase I Test Results Summar
Page 31 and 32: - 5.2.2 Compressive Strength -Since
Page 33 and 34: 26Figure 12. Length Change Test Res
Page 35 and 36: The freeze/thaw test results, which
Page 37 and 38: any dirt or epoxy. Then, the specim
Page 39 and 40: - 5.2.6 Concrete-to-Concrete Bond S
Page 41 and 42: - 5.2.7 Phase II Test Results Summa
Page 43 and 44: Table 14. Cost ComparisonADDITIVE/A
Page 45 and 46: The patch material containing Denka
Page 47 and 48: feasible, all test sections will be
Page 49 and 50: Roberts, J. W. (April 23, 2002) Imp
Page 52 and 53: Mn/DOT 3U18 (Control)PHASE I: MIX D
Page 54 and 55: Mn/DOT 3U18 (Control) (Continued)PH
Page 56 and 57: Type K Cement (Continued)PHASE I: M
Page 58 and 59: KomponentPHASE I: MIX DESIGNS AND T
Page 60 and 61: Denka CSA #20 (42.14 lb/yd 3 or 25
Page 62 and 63: Denka CSA 100R (42.14 lb/yd 3 or 25
Page 64 and 65: Peramin SRA330 (Continued)PHASE I:
Page 66 and 67: Eclipse PlusPHASE I: MIX DESIGNS AN
Page 68 and 69: Eclipse Plus (Continued)PHASE I: MI
Page 70 and 71: SolitePHASE I: MIX DESIGNS AND TEST
Page 72: HydrocurePHASE I: MIX DESIGNS AND T
Page 76 and 77:
Mn/DOT 3U18 (Control)PHASE II: MIX
Page 78 and 79:
Type K CementPHASE II: MIX DESIGNS
Page 80 and 81:
KomponentPHASE II: MIX DESIGNS AND
Page 82 and 83:
Denka CSA #20 (50.56 lb/yd 3 or 30
Page 84 and 85:
Tetraguard AS20PHASE II: MIX DESIGN
Page 86:
APPENDIX C:ADDITIONAL TESTING OFSAT
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