Base-plate or tape with floors on the ground? Which is cheaper and easier?

Those who read and follow the articles of this channel, know that in the construction of the foundation, my choice was made in the direction of slab-foundation.

The biggest cons of why many refuse this kind of simple foundation - it's his height and a larger flow of concrete and reinforcement. For most buildings sufficiently estimated height of 30 cm. And for one-storey, and the lighter, what some frame or timber houses and 20 cm with sufficient reliability bearing soils. But after filling of the blind area of ​​this has taken away about 10 cm.

I made a 45cm height of the foundation. And she cooker - 30 cm. For it is filled with concrete tape under the wall height of 15 cm. Contour exposed decorative plates of permanent formwork. This information for new readers. All of these steps are described in the articles.

According to the calculations on the perimeter of my foundation 9.32 x 8.54 m (under the perimeter of the floor slabs) I had a little less than 24 m3 of concrete on the slab. I took stock of 10% drawdown Nedolya and pillows. Ordered 26 m. Another tape took about 2 m3 concrete. Total: 28 m3.

It is a ready foundation with scratch floors. Let's count the cost of strip foundation with backfilling. Suppose that all the same we do ourselves.

On dumping cushions it took me three truck ASG: 30 thousand. rub. Site preparation and moving of soils (equipment rental): ~ 20 thousand. rub. Total: 50 thousand. - the cost of site and dumping technology cushions.

Take the height above ground of the tape base: 0.5 m, and an underground portion: 0.5 m Height and Depth taken to a minimum.. Digging the trench itself. The pillow needs about 5 m3 of sand. Until you take into account, as include it within the scope of the backfill.

At the same perimeter of the base at a central bearing wall must be 17 m3 of concrete. Less than 11 m 3 at the plate. While less.

Fittings on strip foundations also need less. But I for my plate used fiberglass. But on the tape base I would have to use not risk. It took me about 1900 m of reinforcement. 28 thousand. rub. Brought all of the time in his car.

On the tape of 265 m is necessary reinforcement (6 twigs). Weight of 1 lm valves 12 mm - 0.888 kg. Total ~ 235 kg.. At an average price of 40 thousand / t: 9400 rubles. Plus shipping: 5000 rubles. While also saving.

Formwork. In one of the articles I wrote that the cost of manufacture of permanent formwork panels cost me 17 thousand. rub.

For strip foundation shuttering board 64 must 150h50 mm 6 m. 2.88 m3. At a price of 7 thousand / m3 -. Is 20160 rubles. And again, plus delivery: 5000 rubles.

Total: about 40 thousand. rub. rebar, lumber and shipping.

In my case (reinforcement and formwork): 45 ths. rub.

Communications (sewer pipes) will not be considered. Costs there are and there will be the same.

After pouring the foundation tape over the plate-cooker is ready, but the tape with the floors on the ground yet. You must take 60 m3 of sand to fill it inside the perimeter and compacted. We costs 10m3 tipper - 10 thousand. Six machines = 60 thousand. rub.

Move a volume in the cart - this hand will fall off. You need to hire people or equipment, for example, or Bobcat front loader. A tamp sand needed by-layer. Need vibronoga. Rent 2 thousand. rub. / day. And truck rentals replaced. Let it be 5-6 hours: ~ 10 thousand. rub. Here are additional 72 thousand. rub.

Tamped sand is necessary to lay the waterproofing and mesh. And pour the concrete.

wire mesh Price: 0,38h2, d = 3 - 70 rubles / piece.. You need 80 pcs. Total: 5600 rubles.

It has 5.5 m3 of concrete. Can be kneaded to and can be ordered truck mixer, pour it into a prepared trough of the boards with polyethylene and transferring concrete buckets. One does not have time - concrete has set firmly in the trough.

Total: 77 600 rubles. on the sand, and the net rent equipment.

50 thousand. - soil and rent equipment for a plate.

Suppose you fill this square samomesnym concrete. Total concrete on the tape and the floor: 22.5 m3. The difference with the flow on the plate: 5.5 m3. If you take the price M300 (3500 rbl. m3): 19 250 rubles.

Overpayment for strip foundation with backfill soil and floors for them compared with the base-plate: 8350 rubles.

We can say that the cost of foundations is comparable. If you use the same fixture, the plate a little bit more expensive. But in the construction of strip foundation with floors on the ground you have a lot of extra work, lengthening the process of construction. For example, dig a trench under the tape - this is another task for one. Or sand by hand and ramming.

It is for these reasons that I have given up this type of foundation. And how much I do not regret that I chose a plate. Strain had only at the stage of manufacturing shuttering panels. But it's my choice. Could and of the boards do, would have saved two weeks.

To be continued…

Photos taken from public sources, with Yandex service. Pictures

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