Concrete Construction

Concrete Construction - Concrete Construction Application...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Concrete Construction Application -Foundations -Walls -Pile Caps -Columns & beams -Supported slabs (upper stories) 1) Cast in place / site cast 2) Precast 3) Pretensioned 4) Post tensioned Types of Concrete Construction 1) Unreinforced (plain concrete) 2) Reinforced Concrete materials Concrete strength -Compressive -Tension -Bending -Elasticity Reinforcing Materials 1) Deformed bars 2) Wire mesh Reinforcing Bar sizes -Strength -Fabrication Reinforcement placement -Bar support -Coverage requirements Minimum Coverage Requirements -3” Construction on ground -1.5” Exposed to weather -.75” Not exposed to weather (slabs, walls, joists) -1.5” Beams not exposed to weather Accessories -Splices -Anchor rods/bolts -Other anchoring systems -Sleeves -Beam pockets -Reglets -Brick ledges
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Layout and coordination -GC provides 1) Benchmarks 2) Main N/S & E/W axis lines -Foundation contractor lays out detailed work Forming -Leased vs. owned -Reuseable metal forms -Plywood or wood forms -Form ties -Form bracing Structural Considerations for Forming -Lateral bracing -Shoring systems -Form blow out Height Thickness -Spacing, ties, whalers, studs Concrete Placement Methods -Direct chute -Pumping -Crane bucket -Wheeled cart -Tremie Placement Concerns -Voids -Vibration -Segregation Masonry Construction Mortar: Mason work -The five typical mortar mixes designated types M, S, N, O and K are labeled so because each is an alternative letter in the term Mason work in descending psi strength M – 2,500 psi S – 1,800 psi N – 750 psi O – 350 psi K – 75 psi Type N mortar -This uses a 1 / 1 / 6 mix and results in a mortar with a 750 psi compressive strength. -Type N is the normal, general purpose mortar mix and can be used in above grade work
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Concrete Construction - Concrete Construction Application...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online