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Concrete
Concrete Conctruction
Question | Answer |
---|---|
Types of Rebar: | Epoxy Coated |
Types of Rebar | Stainless Steel |
Types of Rebar | Fiber(Nylon, Rope etc) |
Types of Rebar | Steel Burrs |
Superflat Floors: F sub F | Flat Measured over 24" lenghth (With Machine) |
Superflat Floors: F sub L | Measured for level every 10' (With Machine) |
Rebar Chairs: Are ordered in? | High |
Rebar Chairs: Are ordered in? | Low |
Rebar Chairs: Are ordered in? | Circular |
Rebar Chairs: Are ordered in? | Stack-able |
Bolsters | Are long strands of Chairs connected together. |
Note: | Do not use brick as a chair of bolster |
Welded wire fabric | is typically not reinforcement. But can come in a #6 bars id special ordered. |
Welded wire fabric Purpose: | to limit rise and fall of the Elevation of the concrete. |
Tip: | Spray Water on concrete to find the low spots. |
Prep subgrade by | compaction |
Cupping Condition | Always occurs at outer extremities due to rapid evaporation of water. |
Consolidation | buzz the forms with a vibrator or slap it with a hammer. |
External Vibrators are available in: | Air |
External Vibrators are available in: | Gas |
External Vibrators are available in: | Electric |
SJ | Solid Joint |
CJ | Construction Joint |
Anchor Bolts are ordered in: | Double Nut |
Hickey Bar | Is used for straightening or adjusting anchor bolts or rebar. |
Lap Splice | The larger the bar the longer the lap. |
LWTB | Long ways top and bottom |
JWTB | Short ways top and bottom |
EW | Each way |
BW | Both ways |
Rebar types of steel: Billet Steel | New Steel |
Rebar types of steel: Rail Steel | Rail Road Track recycled steel |
Rebar types of steel: Axle Steel | Rail Road Axle recycled steel |
Rebar is measured C/C or | Center to Center |
To Calculate lap on drilled piers: | pi x D + overlap |
Sheer studs aka: | Nelsons |
1 gallon of water will increase slump: | by 1" |
1 gallon of water will decrease strenghth by | 200psi |