We Energies Coal Combustion Products ... - The White House

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1. Improved economics are possible as a result of reduced raw material costs resulting in the use of more competitive products over a wider geographical region. 2. Class C fly ash usage in concrete provides higher quality products which include higher density with reduced permeability, increased strength and other properties. 3. Fly ash concrete mixes are handled more easily because of improved workability. Faster release of prestressing tendons is also possible because of increased early age strength with use of Class C fly ash. Conductive Concrete Containing We Energies High Carbon Fly Ash (US Patent 6,461,424 B1) (35) Materials Materials utilized in this project consisted of one source of fly ash, cement, clean concrete sand, crushed quartzite limestone aggregates, steel fibers, and taconite pellets. Materials were characterized for chemical and physical properties in accordance with the appropriate ASTM standards. Table 4-49 shows the mixture proportions. Type I cement (Lafarge Cement Co.) was used throughout this investigation. Its physical and chemical properties were determined in accordance with applicable ASTM test methods. One source of fly ash was used for this project (We Energies, Port Washington Power Plant, Units 2 and 3). The ash selected for this project was non-standard (not meeting all requirements of ASTM C 618). This selection was made to develop and encourage additional uses for under-utilized sources of fly ash in Wisconsin. In one concrete mixture, steel fibers were used to enhance electrical resistance. The steel fibers measured about 2” in length by ¼” wide. All concrete ingredients were manually weighed and loaded in a laboratory rotating-drum concrete mixer for mixing following the procedures of ASTM C 192. The resulting mixture was then discharged into a pan where the concrete was further tested and test specimens were cast. We Energies 118 Coal Combustion Products Utilization Handbook
Table 4-49: Concrete Mixture Proportions Mixture No. 40 50 60 Laboratory Mixture Designation 40 50 60 Steel Fiber (lb/yd 3 ) 0 105 0 Fly Ash (lb/yd 3 ) 265 260 265 Cement (lb/yd 3 ) 355 350 350 Fly Ash [FA/(C+FA)], (%) 43 43 43 SSD Fine Aggregate (lb/yd 3 ) 1285 1275 1265 SSD Coarse Aggregate (lb/yd 3 ) 1510 1485 1980* Water, W (lb/yd 3 ) 39 395 420 [W/(C+FA)] 0.63 0.65 0.68 Air Temperature (°F) 80 78 78 Concrete Temperature (°F) 80 80 76 Slump (in.) 2 3.25 1.75 Air Content (%) 1.5 1.0 4.1 Unit Weight (lb/ft 3 ) 140.2 142.4 158.6 • Heavyweight aggregate (taconite pellets) Fresh concrete properties were also measured for the mixtures. Properties measured included: air content (ASTM C 237), slump (ASTM C 143), unit weight (ASTM C 138), and temperature (ASTM C 1064). Air temperature was also measured and recorded. Cylindrical test specimens 6 inches dia. × 12 inches in length were prepared from each mixture for compressive strength (ASTM C 39) and density tests. All test specimens were cast in accordance with ASTM C 192. Concrete specimens were typically cured for one day at about 70±5°F. These specimens were then demolded and placed in a standard moist-curing room maintained at 100% relative humidity and 73±3°F temperature until the time of test (ASTM D 4832). 119 We Energies Coal Combustion Products Utilization Handbook
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Ramme - Tharaniyil Second Edition A
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This book is dedicated to all the i
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Contents Chapter 5 Controlled Low-S
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Contents Appendix A Product Data Sh
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Chapter 1 Background and History o
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The United States is the world's se
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are currently installed on about 25
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problems. In the late 1920’s, cin
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Chapter 2 CCPs and Electric Power
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for loading dry bulk semi tankers o
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Figure 2-2: Basic Diagram of an IGC
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Properties of Fly Ash Fly ash is a
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for air entraining admixtures, maki
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Fly ash is an artificial pozzolan.
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Table 2-6: Geotechnical Properties
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Table 2-9 shows the chemical compos
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Table 2-12: Typical Chemical Compos
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The following coal fired power plan
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All bottom ash is removed as necess
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ottom ash is removed by a hydraulic
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Chapter 3 Properties of We Energie
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that distribute and test fly ash to
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Physical, Chemical and Mechanical P
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However, some engineering propertie
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----------------------------U.S. ST
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Results of Testing to AASHTO Standa
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Table 3-8: Summary of We Energies B
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Chapter 4 Concrete and Concrete Ma
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alumina in the pozzolan may also re
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Dunstan summarized his work in term
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The level of shrinkage strains depe
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strength tests were performed at va
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Discussion of Test Results - 4,000
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Other important observations from t
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Figure 4-3: Compressive Strength vs
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300 290 AMOUNT OF WATER, lbs 280 27
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Table 4-8: PPPP ASTM C618 Class C F
Page 75 and 76: The final setting time for 5000 psi
Page 77 and 78: Table 4-12: Length Change* NON-AIR-
Page 79 and 80: Table 4-14: Freeze-Thaw Tests* (Air
Page 81 and 82: Abrasion resistance tests were perf
Page 83 and 84: Table 4-16: Compressive Strength Te
Page 85 and 86: 4 DEPTH OF WEAR, mm @ 60 Minutes 3.
Page 87 and 88: Table 4-19: Mixture Proportions Usi
Page 89 and 90: 12000 COMPRESSIVE STRENGTH, PSI 100
Page 91 and 92: Table 4-21: Air Permeability Test R
Page 93 and 94: Table 4-22: Water Permeability Test
Page 95 and 96: Table 4-23: Chloride Permeability T
Page 97 and 98: Tax Incremental Financing (TIF) was
Page 99 and 100: Figure 4-20 : Maple Avenue roadway
Page 101 and 102: Figure 4-22: Finishing touch to We
Page 103 and 104: Table 4-26: Concrete Mixture and Si
Page 105 and 106: 6. The high-volume Class C fly ash
Page 107 and 108: Table 4-31: Average Tensile Strengt
Page 109 and 110: Table 4-35: Changes in Ultrasonic P
Page 111 and 112: Table 4-38: Results of De-Icing Sal
Page 113 and 114: Table 4-40: Abrasion Resistance of
Page 115 and 116: Summary Based on the data recorded
Page 117 and 118: 3.00 M 101.5 MM WRAPPED UNDERDRAIN
Page 119 and 120: mixture and concrete mixture. Also,
Page 121 and 122: Testing Program The testing program
Page 123 and 124: Test Results Table 4-46 shows the c
Page 125: Fly Ash Concrete for Precast/Prestr
Page 129 and 130: Figure 4-27: Electrical Resistance
Page 131 and 132: Table 4-51: Electrical Properties o
Page 133 and 134: fly ash by weight of total cementit
Page 135 and 136: Table 4-53: Compressive Strength of
Page 137 and 138: Chapter 5 Controlled Low-Strength
Page 139 and 140: Table 5-1: Mixture Proportions and
Page 141 and 142: 1800 COMPRESSIVE STRENGTH, psi 1600
Page 143 and 144: Table 5-3: Chemical and Fineness Te
Page 145 and 146: 1800 COMPRESSIVE STRENGTH, psi 1600
Page 147 and 148: and corresponding compressive stren
Page 149 and 150: conductivity tests were conducted u
Page 151 and 152: It can be concluded from this resea
Page 153 and 154: Table 5-13: Compressive Strength of
Page 155 and 156: (4) Compatible with copper, aluminu
Page 157 and 158: Mechanical Properties The compressi
Page 159 and 160: Figure 5-10: Electrical permeabilit
Page 161 and 162: Pilot Projects Using We Energies CL
Page 163 and 164: WisDOT Low Permeability CLSM with W
Page 165 and 166: material for foundations, changing
Page 167 and 168: Chapter 6 Commercial Applications
Page 169 and 170: The report also evaluated frost sus
Page 171 and 172: Field Study Following the initial s
Page 173 and 174: Figure 6-3: Bottom ash base course
Page 175 and 176: Table 6-2: Permeability and Drainag
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Bottom Ash as an Aggregate in Aspha
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Table 6-4: Total Elemental Analysis
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We Energies Bottom Ash as a Soil In
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The coal combustion materials landf
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The only other compounds detected t
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affect combustion. The resulting fl
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Table 6-7: Dry-Cast Concrete Block
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Table 6-10 Compressive Strength of
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Chapter 7 Fly Ash Stabilized Cold
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Using the back-calculated SN values
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Falling Weight Deflectometer tests
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unconfined compressive strength of
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Chapter 8 Fly Ash Metal Matrix Com
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The green density of the aluminum f
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Table 8-1: Alloy Samples Tested in
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Cenospheres Cenospheres are hollow,
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Chapter 9 Environmental Considerat
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judgment is required for new applic
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Table 9-2: NR 538 Fly Ash Analysis
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Table 9-3: NR 538 Fly Ash Analysis
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Table 9-4: NR 538 Bottom Ash Analys
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Table 9-5: NR 538 Bottom Ash Analys
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Table 9-7: ASTM D3987 Extraction An
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Table 9-8: Typical Heavy Metals Fou
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The voluntary C 2 P 2 Challenge Pro
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General Usage - NR 538 Applicabilit
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* Use Property Owner Notification -
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Mercury Removal-Ash Beneficiation (
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the air slide inlet was set at 538
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equired removal temperatures of 813
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Chapter 10 Minergy LWA - Structura
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Chapter 11 Sample Specifications
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Part 2 - Products 2.01 Concrete Mat
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3.02 Embedded Items A. All sleeves,
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C. Provide adequate number of units
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B. Reinforce or replace deficient w
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show the strength of masonry strong
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3.02 Bottom Ash Placing and Compact
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3. The CLSM shall meet the followin
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3.02 CLSM Depositing A. CLSM shall
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11.5 Sample Specification for We En
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D. Basis of Payment This item, meas
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If the reprocessed asphaltic base-f
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Chapter 12 References 1. American
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33. University of Wisconsin-Milwauk
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69. Naik, T.R., Kraus, R.N., and Si
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Appendix A Product Data Sheets Min
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Personal Protective Equipment Speci
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FirstAid Eyes Inhalation Ingestion
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Appendix B Radioactivity in Coal a
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annual number of curies of each of
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is divided among cosmic (30 mrem),
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constructed with fly ash building m
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Appendix C Field Guide for Recycli
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‣ Blend the fly ash and prepared
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Index AASHTO See American Associati
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Index Backfill material, 6, 43, 138
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Index Disposal costs, 5 See also La
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Index Pavement, 26, 109, 187; botto
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Index Size, boiler slag, 22; bottom
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About the Authors Bruce W. Ramme B
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