House Foundations

House Foundation Terms

House Foundation Term Anchor Bolt is a large
metal bolt, which is embedded in the outside
perimeter of most concrete foundations. These bolts
come in different diameters. The most common one
used in residential building is 1/2 x 6 inch. Anchor
bolts are sometimes referred to as "J" bolts because
of their shape. Once the framing starts, these bolts
are used to anchor the bottom plates to the
House Foundation Term Slump is a term used for concrete to express how wet or dry the mix.  Slump is determined by pouring concrete in a
cone-shaped metal container and letting sit for a specified period of time, then lifting the cone. The distance in which the concrete drops from the original
height once the cone is removed is considered the slump. The greater the distance, in which the concrete drops, the higher the slump and the wetter the
concrete mix.
House Foundation Term Rebar refers to steel rods, which are put in footings and grade beams in a concrete foundation.  These could vary in size
depending on the structure and what size foundation is being poured.  Rebar normally used in residential construction is #4 or #5 rods. Rods specified
as #4 are ½ " in diameter.
House Foundation Term Brick Ledge is normally depression placed in the outside perimeter of the house wherever brick will be located. This
depression is created by attaching a 2x6 piece of lumber flat-ways in the side of the foundation exterior vertical form. When the concrete is poured, it will
be screeded off level with the top of the 2x6 and exterior form board. After the concrete has set up, the forms are removed. This will leave a depression
in the slab 5 1/2 " wide and 1 1/2 " deep.
Foundation Terms
Foundation Anchors
Anchor Bolt
Re Bar
Slump Test
High Early
House Foundation Term
High Early is a chemical put in concrete to produce heat and
speed up the curing process of concrete after it is poured

Pea Gravel
House Foundation Term
Pea gravel is a small gravel about the size of a pea. It is used
sometimes in concrete mix when the finish is to be exposed.

Form Boards
House Foundation Term
Form boards are boards that are used to form up or build the form
used to hold in the concrete until it has set up and become hard. After the concrete has set
up, the forms are removed

Foundation Wire
House Foundation Term
Foundation wire is used as a re-enforcement for concrete slabs.
The wire can be bought in rolls or matts. The rolls are normally used in residential
construction. This foundation wire is also called wire mesh and is placed and tied across the
whole area of the slab foundation after the poly is laid

House Foundation Term
Edging refers to the process of edging the concrete next to the
form. This is done with an edging tool and creates a rounded edge on the outer perimeter of
the slab or porch. This will prevent cracking and chipping on the outer edge when the forms
are pulled.

Post Tension Slab
House Foundation Term
post tension slab uses sleeved cables instead of the convential
rebar and wire mesh. The cables are placed on chairs in the foundation. These cables are
placed in two different directions perpendicular to each other. This will form a grid with a
constant spacing. After the slab is poured and is allowed to cured for a specific time, tension
is applied to the cables , which then becomes the structural support for the slab
Back Fill
House Foundation Term
Back fill means the process of back filling against a form, retaining wall, bulkhead etc.. This is normally done to provide
support for the form or retaining wall. Towards the end of a project, the back filling is done to bring the soil up to final grade

Foundation Embeds
House Foundation Term
Foundation embeds are structural pieces which are poured in the concrete when the foundation is poured. These embeds
provide the structural strength to help hold the building on the foundation. There are many types of embeds. The type and placement is directed by the
structural engineer or architect

House Foundation Term
Stirrups are rebar pieces that are pre-bent and are used to tie regular rebar to in order to form a particular shape. In a
footing you might have four #5 rebars. These four might be tied to #3 stirrups and for a rectangle. These are placed and supported in the footings or

Floor Drain
House Foundation Term
floor drain is just as it states. Floor drain are commonly used in wet areas or areas have a possibility of getting wet. These
might be installed in laundry rooms or open stair wells. Floor drains are covered with a metal grate type cover, to allow water drain but prevent any
trash from entering the drain.

Soil Moisture
House Foundation Term
Soil moisture is stated as a percent based on the sampling. In the process of compaction, moisture is an important factor in
determining the rate of compaction. When a soil sample is taken and tested, the results will state what optimum percentage of moisture is needed to
obtain the required compaction
Category Construction Glossary
  • The Concrete Factor
  • Concrete is one of the main building products used in the
    construction of a house.
  • Bull Float
  • Bull float is tool that is used to level concrete after it has initially
    been poured.
  • Foundation Rebar
  • Rebar refers to steel rods, which are put in footings and grade
    beams in a concrete foundation
  • Foundation Rebar
  • Rebar refers to steel rods, which are put in footings and grade
    beams in a concrete foundation
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