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CIM 350 Final
CIM 350 Midterm
| Term | Definition |
|---|---|
| correction punchlist | lists minor incomplete, defective, or incomplete work that needs fixing before project completion and payment |
| what information must be identified on each submittal | project, contractor, subcontractor/supplier, drawings and detail#, spec section, contractors stamp/signature, any variation from contract drawings |
| shop drawing | detailed plan, shows how specific building components will be manufactured, assembled, and installed |
| what must be on a shopw drawing before it can be used for construction | final stamp |
| what must the contractor do if the referenced standards conflist with the project docs | send in an RFI, contact engineer for resolution |
| mock up | show aesthietic eects, establish the standards ofquality expected by the architect |
| what is the specified testing method for density of engineered backfill areas | ASTM D2922 |
| SWOT | strength, weaknesses, opportunities, threats |
| Mix design for super flat floors | low total water, SRA, high coarse aggregate content, HRWR, Macrofibers |
| why are mock-ups important to the contractor | mock-ups confirm assumptions, ideas, and constructability of a project |
| what is the key to a mock-ups effectiveness | they need to reflect the actual condition |
| 3 considerations when dealing withcurved surfaces in precast construction | will there be an overhang/where is the panel going, how is the supporting member designed, radius vs segment? |
| what does ACI 301 say about the installation of concrete embeds | the precast embeds should be pre-placed, not inserted after the concrete has been poured |
| how long must grout be cured | 24 hours |
| what is the minimum sealant joint depth | 1/4" |
| what was the concern with the black granite panel installation | granite panel moves differently than the precast concrete does - especially being a different color |
| two possible sources of rust streaking in precast panels | welding slag, pyrite stuff from materials fabrication or transportation, pieces of the loader |
| what is the minimum thickness for a concrete topping over a precast plank floor | no less than 2" or 3x the aggregate size |
| list 4 factors that contribute to poor concrete durability performance | Lack of appreciation of the environmental exposure, inadequate specifications to obtain durability in that exposure, lack of understanding by all parties of the methods and practices required to attain durability, lack of inspection |
| what is the single most important trait that helps concrete withstand all of the exposure conditions | w/c ratio |
| what is the interfacial transition zone | the zone between the cement paste and aggregate |
| does w/c ratio or total water have more impact on permeability | total water |
| what is LC3 cement | Limestone Calcined Clay Cement, uses a blend of limestone, calcined clay, and gypsum to reduce carbon emissions |
| list advantages of using mid-sized aggregates in a mix design | 9% less cement with higher strength, 24$ lower drying shrinkage, 28% lower permeability |
| why is normal concrete cracking more of an issue in severe exposure conditions | aggressive fluids penetrate the reinforcing steel |
| why is a good thermal control plan vital for concrete durability | minimize thermal cracking due to internal gradients of from external sources - protect from hot and cold temps |
| how can prescriptive mix specifications negatively affect concrete durability | puts limits on cement and SCMs, and placement/curing procedures don't always correspond to the mix design - might get bad durability |
| is w/c ratio and compressive strength a good predictor of concrete durability | No, the w/c ratio and compressive strength tests are not directly related to the durability issues – These do not correlate to the aggressiveness of the concrete's environment |
| what would a good repair option for lightning strike damage on an airfield | partial depth repair |
| which question must be answered before initiating an repair project | what is the source of the problem |
| what is the operator listening for while performing a chain drag analysis | hollow sound |
| what type of curing is recommended for a spall repair | wet curing |
| which methods are used for removing concrete panels in a full depth repair | saw and pluck, fork it out |
| describethe process of mud jacking | injecting concrete or another material below the slab in order to make it rise up and become leve again |
| in which instances could you use the cross stitching repair process | close up cracks or use on unreinforced joints, tie slabs back together, usually on thicker pavement |
| why do many concrete durability issues begin at the edge of the conrete | edges are typically over-worked, push down the rock, work up the cream, push out the air |
| how are joints prepped for re-sealing | sand blasted/cleaned out |
| advantages of precast concrete | faster insallation, consistent concrete, increased strength |
| disadvantages of precast concrete | higher investment, specialized equipment needed, costly design modifications |
| things to consider when entering a new market | competition, resources, how big is the "pie" of this area/how many customers are there, regulations/legal compliance |
| how to make all of the joints activate in a concrete pavement | early loading |
| benefits of macrofibers | enhanced durability, increased post-crack toughness/crack control, decrease the amount of rebar needed - cost savings |
| 3 main costs of a take off | labor, equipment, materials |
Created by:
Grace.Jensen