compatibility of ultra high performance concrete as repair material

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macrotexture depth was measured in all samples for the splitting tensile test. However,basis on the low variation of the results obtained between surfaces treated with the samemethod, only the roughness of random samples for the pull off and slant shear tests wasmeasured.Sample macro texture depth of concrete substrates for the slant shear test.Figure 3.13 Macrotexture depthThe CSP index provides 9 different rubber profiles that replicate different degrees ofroughness. Figure 3.14 shows the ICRI profiles 7,8 and 9 compared to the rough surface.Table 3.5 classifies the different preparation methods according to CSP (InternationalConcrete Repair Institute 1997).Comparing different ICRI profiles for the rough surface.Figure 3.14 CSP index58
Table 3.5Classification of different surface treatments according to CSP. Adapted from ICRI guidelinePreparation methodICRIProfilePreparation methodICRIProfileDetergent scrubbing 1 Scarifying 4-9Acid etching 1-2 Needle scaling 5-7Low-pressure watercleaning1 High/ultrahighpressure water jettingGrinding 1-3 Scabbling 7-9Abrasive (sand)blasting6-92-5 Flame blasting 8-9Steel shotblasting 3-8 Milling/rotomilling 9The results of both tests are summarized in Table 3.6 for the splitting tensile samples andin Table 3.7 for the slant-shear and pull-off samples.Table 3.6Results of the macrotexture depth test for the splitting tensile samples and classification of the surfacesaccording to CSPSurfacetreatmentICRI ProfileMacrotexture Depth (in)Macrotexture Depth(mm)Smooth 1, 2 0.02 0.60Brushed 1, 3 0.03 0.74Chipped Not applicable 0.04 0.92Sandblasted 4, 5 0.04 1.06Grooved Not applicable Not applicable Not applicableTable 3.7Results of the macrotexture depth test for the slant shear and pull off tests and classification of the surfacesaccording to CSPSurfacetreatmentICRI ProfileMacrotexture Depth (in)Macrotexture Depth(mm)Brushed 1,3 0.03 0.72Sandblasted 4,5 0.03 0.86Grooved Not applicable Not applicable Not applicableRoughAggregateexposure >8,90.09 2.1859
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COMPATIBILITY OF ULTRA HIGH PERFORM
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Table of ContentsList of Figures ..
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4.3.2 Discussion ..................
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Figure 3.14 CSP index .............
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Table 4.7 Summary of indirect tensi
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List of AbbreviationsACI.AFtASTM.CO
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1 Introduction and MotivationCurren
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2 Background and Literature ReviewT
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spaces and to decrease the amount o
Page 20 and 21: water/binder=constantChoose steel f
Page 22 and 23: UHPC formulations and provides a se
Page 24 and 25: Table 2.3Comparison of UHPC materia
Page 26 and 27: esults obtained in this project wer
Page 28 and 29: 2.1.3.4 Environmental Impact of UHP
Page 30 and 31: 1997). Emmons and Vaysburd (1996) d
Page 32 and 33: e) ConstructabilityIt is recommenda
Page 34 and 35: Table 2.5, continuedCementitious ma
Page 36 and 37: • Rehabilitation of a bridge pier
Page 38 and 39: UHPC is a cost-effective solution i
Page 40 and 41: apparatus will measure the shear st
Page 42 and 43: substrate while the scarifying meth
Page 44 and 45: such test configuration, this upper
Page 46 and 47: From the equilibrium of forces of F
Page 48 and 49: The first layer, also called penetr
Page 50 and 51: 3 MethodologyThis report aims to st
Page 52 and 53: f sp = 2 ∗ PA ∗ π in psi Equat
Page 54 and 55: that the bond interface, in this lo
Page 56 and 57: Ductal® premix is typically compri
Page 58 and 59: associated test results (temperatur
Page 60 and 61: Figure 3.2 Detail of splitting tens
Page 62 and 63: 3.3.3 Pull-off testPull off test wa
Page 64 and 65: (a) Chipped surface, slightlybrushe
Page 66 and 67: (a) Molds to cast slant shearspecim
Page 68 and 69: Timber moulds were used to cast the
Page 72 and 73: As shown in the above tables, the m
Page 74 and 75: (a) Concrete substrate under water
Page 76 and 77: used, as shown in Figure 3.17. A fa
Page 78 and 79: Equation 2.2 and Equation 2.3 were
Page 80 and 81: (a) Steel disks glued to the UHPC s
Page 82 and 83: value to the lowest one in the foll
Page 84 and 85: Transversal frequency (Hz)255025002
Page 86 and 87: 115113Relative Dynamic Modulus (%)1
Page 88 and 89: Only those specimens with a grooved
Page 90 and 91: Table 4.6, continued.MeanMeanCOV,st
Page 92 and 93: concrete or bond/concrete while for
Page 94 and 95: surface treatment applied. In contr
Page 96 and 97: Table 4.8Summary of slant-shear tes
Page 98 and 99: (a) B(C): Bond due to concrete fail
Page 100 and 101: 3143Bond Capacity, (psi)30002500200
Page 102 and 103: The different failure modes obtaine
Page 104 and 105: failures occurred in the concrete s
Page 106 and 107: property of the concrete has higher
Page 108 and 109: 5.1.1 Combination of Splitting Tens
Page 110 and 111: 5.1.4 Overall performancea. For thi
Page 112 and 113: mismatch and load eccentricity. Tho
Page 114 and 115: 6 ReferenceAbu-Tair, A. I., Rigden,
Page 116 and 117: Climaco, J. C. T. S., and Regan, P.
Page 118 and 119: Graybeal, B., and Tanesi, J. (2007)
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Misson, D. (2008). "Influence of Cu
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Silfwerbrand, J. (1990). "Improving
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7 Appendix: NSC mix designsTable 7.
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Table 7.33rd mix for the splitting
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Table 7.51st mix for the splitting
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Table 7.73rd mix for the splitting
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Figure 8.2 Concrete retarder inform
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Table 9.1, continued.BrBr w/oBr 300
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Table 9.2, continued.TrialBrushed 6
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10 Appendix: Splitting tensile pris
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Table 10.1, continued.128
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Table 10.2Splitting monolithic NSC
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11 Appendix: Slant-shear specimens
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PortionNumberof 1figures/tables/ill
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Figure 2.5Miguel Angel Carbonell Mu
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Miguel Angel Carbonell Munoz Mon, M
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Miguel - not sure what you need fro
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End Page 1235Type of UsePortionNumb
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Type of UseIntended publisher of ot
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