Underwater Concrete Technologies in Marine Construction Projects

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Coarse Aggregatespecific Gravity: 2.85bsorption: 1.1%aximum Nominalize: 3/4-inchppearance: Cleannd round-shapedith smooth surfacexture
Fine AggregatesSpecific Gravity: 2.72Fineness Modulus: 2.9”Absorption: 3.0%Natural River Sand
Page 2 and 3: oncrete Production from a Floating
Page 4 and 5: Concrete Delivery on Transit Mixers
Page 6 and 7: Tremie Placement with Suspended Pip
Page 8 and 9: erformance Requirements for Underwa
Page 10 and 11: Slump vs. Slump Flow
Page 12 and 13: Mock-up Tremie Concrete Test
Page 14 and 15: Tremie Concrete Placement Planning
Page 16 and 17: c* h + Ww* D + FWcRHydrostatic Bala
Page 18 and 19: Tremie Pipe Spacing3-5 Times Deptho
Page 20 and 21: Removal of Laitance Underwater
Page 22 and 23: Hydraulic Flow Pattern in Stilling
Page 24 and 25: 18 monthsafter repairKinzua Stillin
Page 26 and 27: Erosion Damage Repair
Page 28 and 29: Undrewater Repair of a Dam
Page 32 and 33: Gradations of AggregatesVolume Rati
Page 34 and 35: Mix ProportionsMix No. 1 Mix No. 2
Page 36 and 37: itial Concrete Slump10” to 10-3/4
Page 38 and 39: Set Time TestMix No. 1Set Time > 12
Page 40 and 41: Tremie Concrete Placement Sequence
Page 42 and 43: Tremie Concrete Placement
Page 44 and 45: Conventional Dam Construction
Page 46 and 47: Conventional Lock Construction
Page 48 and 49: Cleanup After the Flood
Page 50 and 51: Braddock Dam - IllustrationTowing a
Page 52 and 53: Braddock Dam - Stage 5Concrete Infi
Page 54 and 55: In-the-Wet Foundation Preparation
Page 56 and 57: Fabrication SiteLaunchBasinSegment
Page 58 and 59: Top Slab Fabrication
Page 60 and 61: Transport of Dam Segment 1
Page 62 and 63: Braddock Dam
Page 64 and 65: Construction Complete
Page 66 and 67: Coral Reef in Florida Keys
Page 68 and 69: Damaged Coral Reef
Page 70 and 71: Precast Repair Module
Page 72 and 73: Setting a Precast Module
Page 74 and 75: Adding Nitrogen Cooling Agent
Page 76 and 77: Placing Underwater Concrete
Page 78 and 79: Finishing Underwater Concrete
Page 80 and 81:
Coachella Canal Engineering Data•
Page 82 and 83:
Installation of Liner and Concrete
Page 84 and 85:
• Liner: 30 mil thick PVCgeomembr
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Underwater Concrete Technologies in Marine Construction Projects

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