Roller Compacted Concrete Pavement: Design and Construction

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Pozzolanic Reaction Hydrated Lime + Silica = Calcium Silicate Hydrate Hydrated Lime + Alumina = Calcium Aluminate Hydrate Supplied by Cement Hydration Clay Minerals Cementitious Gel Note: Without silica or alumina-based clay minerals, this process does not occur (e.g. s<strong>and</strong>y or silty soils).
Ca(OH) 2 clay particle (SiO 2 , Al 2 O 3 ) cementitious material from pozzolanic reactions (CSH <strong>and</strong> CAH) Pozzolanic Reaction cementitious material from cement hydration Ca(OH) 2 claycement bonds Ca(OH) 2 Ca(OH) 2 calcium hydroxide from cement
Page 1 and 2: Cement Stabilization of Soils Matth
Page 3 and 4: Concrete Concrete Soil--Cement Soil
Page 5 and 6: APPLICATIONS
Page 7 and 8: Construction Problems with Silts or
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: Hydration clay particle clay-cement
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)
Page 117 and 118:
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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