Roller Compacted Concrete Pavement: Design and Construction

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Reasons to Modify Improve the properties of the subgrade soil Reduce volume change caused by moisture Improve wet strength Improve compactibility Expedite construction by improving subgrade support in wet weather Eliminate muddy construction sites Create an all-weather work platform It is important to remember that soil modification is different than soil stabilization
Construction Problems with Silts or Sandy Soils Fine-grained and difficult to compact Poor gradation Low bearing capacity Low cohesiveness and shear strength Unstable under construction equipment
Page 1 and 2: Cement Stabilization of Soils Matth
Page 3 and 4: Concrete Concrete Soil--Cement Soil
Page 5: APPLICATIONS
Page 9 and 10: Solutions for poor subgrade soils
Page 11 and 12: Benefits of Cement-Modified Cement
Page 13 and 14: Cement Reactions with Clay Primary
Page 15 and 16: Clay particle Negatively charged cl
Page 17 and 18: Secondary Reaction Clay participat
Page 19 and 20: Hydration clay particle clay-cement
Page 21 and 22: Ca(OH) 2 clay particle (SiO 2 , Al
Page 23 and 24: DESIGN
Page 25 and 26: ASTM C136 Standard Test Method for
Page 27 and 28: Hydrometer
Page 29 and 30: Plasticity Index (PI) The range of
Page 35 and 36: ASTM D558 Standard Test Methods for
Page 37 and 38: Moisture/Density Relationship
Page 40 and 41: ASTM D559 Standard Test Methods for
Page 42 and 43: Wet-Dry Wet Dry Tests Wet-Dry Soa
Page 44 and 45: 0.00% to 0.30% - Sulfate Levels Too
Page 48 and 49: CMS Strength Determination The obje
Page 50 and 51: FDR Strength Determination Unconfi
Page 52 and 53: Early Research Involving Cement-Mod
Page 56 and 57:
Plasticity Index (%) 50 40 30 20 10
Page 58 and 59:
Current Research Involving Cement-M
Page 60 and 61:
Tube Suction Test (TST) for Moistur
Page 62 and 63:
Interpreting TST Results
Page 65 and 66:
Summary of Recommended Laboratory T
Page 67:
CONSTRUCTION
Page 80 and 81:
TESTING
Page 82 and 83:
Secondary Testing Requirements Thic
Page 84 and 85:
PERFORMANCE
Page 86 and 87:
The final impact of CMS
Page 88 and 89:
Summary: Cement Effects Strength i
Page 90 and 91:
Full-Depth Full Depth Reclamation w
Page 92 and 93:
The New Base The new cement recycle
Page 94 and 95:
Soil-Cement Soil Cement Materials i
Page 96 and 97:
Pavement Loadings…. An Increasing
Page 99 and 100:
Pavement Distress Alligator Crackin
Page 101 and 102:
Pavement Distress Base Failure
Page 103 and 104:
Pavement Distress Potholes
Page 105 and 106:
Pavements in the United States Conc
Page 107 and 108:
Applications Low volume roadways
Page 109 and 110:
Engineering Benefits • Retards Re
Page 111 and 112:
Creates Stable Base Bonds particle
Page 113 and 114:
DESIGN (Preconstruction Evaluation)
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Mix Design The mix design procedure
Page 119:
Moisture/Density Relationship
Page 122 and 123:
Test for Strength Unconfined Compr
Page 125:
Aggregate Adjustment (if necessary)
Page 131 and 132:
Material Removal Excess material ca
Page 133 and 134:
Cement Spreading (Slurry)
Page 135:
Moisture Addition Water is added t
Page 138:
Compaction Material is compacted
Page 141 and 142:
Surfacing Surface course is applie
Page 143 and 144:
Review of Construction Procedure As
Page 145 and 146:
Reflective Cracking Can it be preve
Page 147 and 148:
PCA Document LT 299
Page 149:
Testing Moisture
Page 154 and 155:
Testing Thickness
Page 156 and 157:
Testing Stability
Page 158 and 159:
Retards Reflective Cracking
Page 160 and 161:
Eliminates Rutting Below Surface Un
Page 162 and 163:
Reduced Moisture Susceptibility Hig
Page 164 and 165:
Asphalt Strain 0.0005 0.0004 0.0003
Page 166 and 167:
Welcome to Navasota, TX Population
Page 168 and 169:
Rents CMI 425 for $14,000 ($20,000
Page 170 and 171:
FM 1017 Jim Hogg County (2002) Two
Page 172 and 173:
City of Fort Worth
Page 174 and 175:
Replace vs Recycle Full reconstruct
Page 176 and 177:
Tarrant County Reclaiming with cem
Page 178 and 179:
TxDOT - Amarillo Construction proc
Page 180 and 181:
Texas DOT Bryan District On rural
Page 182 and 183:
Who Is Using It In Texas? Bedford B
Page 184 and 185:
Base and Subbase Materials 100- 0-
Page 186 and 187:
for additional information, please
Page 188:
Thank You! Matthew W. Singel, P.E.
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Roller Compacted Concrete Pavement: Design and Construction

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