Concrete foundations presentations

Concrete Foundations

Harp Legacy Concrete

Who we are

• Started operation July 2005• Partnership Kenny Harp & Ralph Matera• Over 60 years combined construction &

engineering experience• Licensed general contractor, licensed

professional engineer

What we do

• Turnkey reinforced concrete foundations for residential and small commercial buildings

• We provide the following services:– Excavation (optional)– Reinforced footings– Reinforced walls– Waterproofing– Backfilling (optional)– Flatwork

Why Concrete foundations?

• Poured walls have been around for years• New to area for residential foundations• Significant growth in most major SE cities• Superior product for basement walls

Advantages of Concrete

• IRC limit 12 inch masonry to 4 ft fill without reinforcement and full grout

• 10 inch un-reinforced concrete allowed to 8 foot fill, addition of rebar increases depth

• Concrete foundation monolithic less prone to crack and settle

• 5 times stronger than masonry• Cost comparable to grouted masonry• Concrete watertight provides for dry basement

How we do it

• Owner provides excavated site or HLC can perform

• Form footings above grade– Integral perimeter drain– Integral radon collection system– Two rows #4 rebar– Electrical ground wire

How we do it (cont.)

• All footing pumped with 3000 psi concrete• Vertical steel rebar embedded in footings

How we do it (cont.)

• All footing pumped with 3000 psi concrete• Vertical steel rebar embedded in footings• Aluminum panels are erected to form

cavity of wall

How we do it (cont.)

• All footing pumped with 3000 psi concrete• Vertical steel rebar embedded in footings• Aluminum panels are erected to form

cavity of wall• Brickledges, beam pockets, door openings

are placed in forms• Walls pumped with 3500 psi concrete

How we do it (cont.)

• Anchor bolts are set• Walls are stripped

How we do it (cont.)

• Anchor bolts are set• Walls are stripped• Waterproofing is performed using either:

– Tremco Tuff N Dry system with 30 year dry basement warranty

– Tremco Warm N Dry system with 15 year dry basement waranty

How we do it (cont.)

• The whole process is completed in about a week

• Backfilling of site can be performed after 7 -10 days

• Begin framing on a clean backfilled safe worksite!

Capabilities

• System capable to form over 300 foot of wall in one pour

• Basements 9, 10, 12 feet deep• Brickledge as required• 10 inch true wall thickness standard any

wall thickness capable• Retaining walls to 12 feet high• Turnkey flatwork

What If?

• Haven’t convinced you yet?• What if a 7,000 lb boulder slid down bank

from 10 feet high and hit the middle of a 12 foot high straight masonry wall that was 50 feet long?

• You’d start all over again after cleaning up the mess!

• Well, that’s exactly what happened to one of our walls

Sub basement walls

• Difficult to do properly with a masonry foundation

• This is where a concrete wall excells

Other services

• Retaining walls• All flatwork (basements, garages,

driveways) all turnkey

Summary

• One contractor, one check gets you to framing

• Fast quality construction• Comparable in cost to filled and reinforced

block wall• Walls can be constructed year round