2ND& Broadway Luxury CondosOakland, CACE 165 Concrete Materials and ConstructionProf. Paulo MonteiroGroup Members: Frank Menjivar, Amir Razani, Seung Jai Ko, and Ryan BlunckPROJECT BACKGROUNDProject recently renamed to Ellington CondominiumsCost of Project: $60 million 16 Story Luxury Condominium 115 Units: Unit amenities will include full size washer/dryers in every unit, nine foot ceilings, crown molding, oval tubs, separate shower enclosures, granite counters, hard wood cabinets, wood flooring and a stainless steel appliance packageOwners: Molasky Pacific PropertiesArchitects: Perkins + Will in San Francisco One block from Jack London Square in OaklandCONCRETE INFO 7 different concrete mixes + 1 shotcrete mix Type II cement used for each mix Angel Island sand used as fine aggregate Sechelt 1” coarse aggregate imported from British ColumbiaADMIXTURES Class F Fly Ash used in 7 of 8 mixes The chemical admixtures included WRDA-64, PolarSet®, ADVA® 100, and Glenium® 3030 NS WRDA 64- Water Reducer Polarset- Accelerator ADVA 100- Superplasticizer Glenium 3030 NS- Water ReducerMIX DESIGNSMIX1 2 3 4 5 6 7 Shotcretew/c ratio 0.4 0.38 0.41 0.33 0.34 0.43 0.57 0.47lbs/yd3Cement 282 658 559 564 599 479 400 559Water 225 250 267 250 242 242 267 333.8Fly Ash 282 0 99 188 106 85 71 106Coarse Aggregate 1720 1720 1720 1800 1720 1720 1720 821Fine Aggregate 1546 1488 1414 1256 1439 1562 1596 2013.6AdmixturesWRDA 64,ADVA 100WRDA 64,PolarsetWRDA 64 WRDA 64,Glenium 3030WRDA 64,ADVA 100WRDA 64,ADVA 100WRDA 64 Type A waterreducerSHORING AND FORMWORK Ellis Shoring System FormworkAllowed for quick, timely construction of shoring set up created by identical plan layout from floor to floor Plywood with a form-coating compound in preparation for form removal Accommodation for electrical wiring as well as access openingsSHOTCRETEShotcrete used for walls in close proximity to neighboring buildingsProvides the opportunity to build against other buildings without complications of cast in place concreteCONCRETE PLACEMENT Concrete poured continually by pumpingFINISHING VibrationFINISHING ScreedingFINISHING BullfloatingFINISHING Power FloatingFINISHING Steel Trowel FinishingCURING Chemical curing from specs The curing compound,110-Clear Series sprayed on the exposed surface Xypex waterproofing agentFORMWORK REMOVAL Forms were removed when 75% of the minimum design compressive strength was achieved Strength is gauged using IntelliRockINTELLIROCK A non-destructive strength estimation technique to determine in-situ concrete strength. Based on maturity and temperature
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