#PRECAST CONCRETE PIER BLOCKS PLUS#

Alternatively, in some factory settings, concrete is mixed into dryer forms to manufacture precast concrete products such as concrete walls. Some concretes are even designed to harden more quickly for applications that require rapid set time. Production of concrete is time-sensitive, and the concrete must be placed before it hardens since it is usually prepared as a viscous fluid. It involves mixing water, aggregate, cement, and any desired additives. Proper mixing is essential for the production of strong, uniform concrete. While there are many types of cement, Portland cement is the most commonly used cement, and is an ingredient in concrete, mortar, and plasters.Ĭoncrete can be purchased in multiple forms, including in 60 or 80-pound bags, or delivered in large amounts by specialized concrete mixer trucks. Cement is a substance that is used to bind materials, such as aggregate, by adhering to said materials, then hardening over time. Hole, Column, or Round Footings Diameter (d)Ĭircular Slab or Tube Outer Diameter (d 1)Ĭoncrete is a material comprised of a number of coarse aggregates (particulate materials such as sand, gravel, crushed stone, and slag) bonded with cement. Slabs, Square Footings, or Walls Length (l) Purchasing slightly more concrete than the estimated result can reduce the probability of having insufficient concrete. The Concrete Calculator estimates the volume and weight of concrete necessary to cover a given area. Backfill excavated area around each pier with gravel or coarse sand.Home / other / concrete calculator Concrete Calculator The two cavities are filled with concrete, with rebar extending through each. To minimize concrete being mixed, you might consider building piers out of stacked bull-nose pier blocks.

The side loads during freeze/thaw cycles can be significant.

#PRECAST CONCRETE PIER BLOCKS PLUS#

How many piers and how thick and tall are they?Ĭlay soil plus 5 ft frost depth is going to knock those pre-cast piers over in short order. The foundation is not the area to do 'good enough' just because doing it correctly is a bit harder. There are plenty of nice cabins that have junk foundations.thus making them a junk cabin. The problem I see with those pre cast ones is the only thing keeping them from shifting side to side is the single bar in the middle. $200 a pier vs about $75 for a sono tube pier.Ĭoncrete actualy dosnt take much water to mix and home depot rents a prety good sized cement mixer that should mix enough to do a 12'x5ft pier. I'm guessing it's because the strength of the pier is compromised above ground? But seems like everyone does concrete piers only to ground level and then does a post and beam on top. I'm also considering building up with concrete pier to 2' above ground so I can have a underneath crawl space. But long-term would that be a serious issue? Thinking of using this pre-cast pier but it doesn't have rebar inside. And the dirt road wouldn't support a concrete truck. Problem is to do the concrete myself, i don't have much access to water unless i truck it in. Carpenter friends have told me i could get away with 4' with a footing. I'm working to build a cabin in new england area, semi mountain area with lots of snow and clay/rocky soil.įrost depth is said to be around 5' here. Small Cabin Forum / Cabin Construction / pre-cast concrete pier w/o rebar vs diy sonotube w/rebar? Forums - Register/Sign Up - Reply - Search - Statistics.

Precast concrete pier blocks