And UWB is proruha why plate can prosest and what to do
To fill Insulated Swedish stove so that then not be excruciatingly painful for the result
FORUMHOUSE many times talked about the foundations of emergency, in addition to UWB. Constructive warmed Swedish plates worked out to the smallest detail. It seems that when it nakosyachit device impossible. But, in 2017, near St. Petersburg, there was a case that has become a real detective story with a dramatic start. Stove UWB slipped by one corner. Money is spent, and it is impossible to build a house. Read below: which is why it happened, whether it was possible to avoid it, and what it led to.
Content:
- Emergency with UWB
- Photo and video report on the problem of UWB
- Why is it necessary geotechnical investigations
- The causes of subsidence warmed Swedish plates
After pouring the slab slipped UWB. Help, what can be done ?!
It is so named his theme on a portal user with the nickname a_ivanov.
a_ivanov
user FORUMHOUSE
I wanted to build a two-storey house in the style of "modern fachwerk" of laminated veneer lumber with a large glass area. The foundation chose UWB. In March 2017 I poured warmed Swedish plate size 11h12 m. Geotextile spilled 140 cubic meters of sand and rammed his tractor. Crushed in the base plate no. Drainage done, but withdrawal is not taken out. We laid on a sandy base Epps. Zaarmirovali plate. 800 m laid pipes warm water 23 filled in the floor and the concrete cube. After casting, slab leveling instrument checked. The surface is flat. UWB covered awning and left to gain strength a month. When the tent was removed, it was found that the plate had fallen on its side. Difference in height 15 cm! As it is now I fix it?
Portal users have responded to the problem a_ivanov. Showered with questions. He replied. It turned out that:
- Geology did.
- Project and calculation of the foundation is not.
- The foundation pit dug under the slab at the beginning of March, at about 0 degrees and night frosts to -5 ° C.
- Promorzshy ground chosen "by eye" to, as did the builders of soft clay.
- To cushion used silty sand.
- A layer of cushion sand from 30 to 50 cm.
- In the place where the plate subsided, the sand layer 300mm.
- Sand going bucket excavator rolled wheels, then, with the words emergency UWB builder, Ramming vibratory plates.
- Sand water does not shed.
- Drainage 15-20 cm above the ground excavation, but must be below the bottom of the pit. The drainage is used gravel fractions 5-20, not 20-40.
- Before pouring the concrete floor heating pipes are not filled with water, not crimped, and are not tested under pressure.
- After pouring the slab 2 weeks it rained. Stove, due to the non-working drainage, was under water, and the area turned into a swamp.
- plate surface is not polished trowel - "helicopter", and it is not suitable for laying finishing floor covering.
Hard to believe that at one facility collected many fatal errors. a_ivanov They began to ask about the stove on, but he suddenly disappeared. Some members of portal expressed concern that the whole situation - fake. No real plates, and the theme was created to tarnish the UWB technology. Finally, the user again appeared on the portal.
a_ivanov
user FORUMHOUSE
Sorry for the long absence. Rains mixed with snow. Plot podtopilo and I immediately altered drainage around the plate, to drain the land. I appeal to users. There are in St. Petersburg specialists who can come to me? View UWB. Accurate diagnosis and suggest a way out of this situation?
Chance
Builder UWB and frame houses
Ready to drive, watch, take pictures, measure penetrometer seal cushion.
ViGilant
user FORUMHOUSE
I come and do photos, but many believe the situation invented.
Photo and video report on the problem of UWB
says Vigilant:
UWB is real.
Quality performance through the floor.
It is evident, the supernatant water underfloor pipe corrugation and an electric cable. Apparently, the poorly secured.
The quality of the board surface does not hold water. Grouting "helicopter" did not. From the words of the customer, singer saidThat the trowel is not needed. From it only got worse, and we always do.
Porch cracked and fallen off from the plate.
The collector pipes floor heating is not set. Tubes were pressurized not, either before or after pouring UWB plate. What now with branches TP nobody knows.
Communications hot and cold water in the plate have plainly. Laid sewer pipe, but the builders, for some reason, put a ladder to the soul.
Drain well UWB.
This drain pipe.
A simple test for evenness UWB plate.
Sloping plate measured rotation lasers.
Drawdown Plate - 17 cm!
sand cushion packing density checked penetrometer.
In a well-sealed pillow, pin, so just will not thrust. Note that the pin first comes easily, then a little harder, and then falls again.
ViGilant
In my opinion the construction of the UWB - solid trash. The builder must return the money or change everything.
Chance
My opinion - the reason for the drawdown plate - neutrambovannaya the lower part of the sand cushion. Most likely, there is no separation of the layers. Normal to strengthen the base of geotextile. Drainage made incorrectly and as a result, there was a soaking the base cushion and the possible leaching of sand. This has aggravated the situation.
UWB and the need for hydrogeological investigations
After assessing the problem UWB portal users are increasingly began to appear tips that repair and refill a plate - a more expensive. House it did not deliver.
Exit - to break and build again UWB.
Heeding the advice, a_ivanov I ordered a geological survey.
a_ivanov
It was found that:
- Power of the fill plate from around 0.3 to 0.5 m.
- Reducing power mound traced eastward.
- The sole of the mound has the same mark, and the roof has a different level of the mound.
- Under the plate edges from the east has horizontal angle voids up to 2 cm in height.
- Power mound outside the plate decreases along the perimeter from the plate to the edge of the pit, where drainage is laid.
- Drainage, composed of gravel and pebble soil, filled with fine sand and silt, and does not have a solid protection geotextile.
Conclusion: The mound under UWB precipitate occurred due to erosion of water at atmospheric precipitation and flooding pit above the top embankment with further removal of soil particles to the edges of the pit and a drainage.
Complex hydrogeology exacerbated portion adjacent fire pond.
The causes of subsidence UWB
After long and painful reflection, alterations drainage and consultations, a_ivanov Still he planned to reconstruct the UWB. He began looking for musicians. Builders found who agreed to replenish the stove. The boys arrived at the subject and made the following - brown geologist drilled four holes in increments of 2 m at an angle of 45 degrees to the troubled corner of the plate.
The samples showed that the sagging corner and, for the most part of the foundation for the sand and geotextile bag is black soil thickness of 15-20 cm!
a_ivanov
On such a basis, the concrete refilled and loaded already sagging angle, then it is impossible to build the house. So I decided to completely dismantle the UWB plate and pour a new foundation!
conclusions
UWB, as well as any type of foundation, does not tolerate amateurs. basic errorsCommitted during the construction of this warmed Swedish plates:
- We did not geology.
- No calculation of the design of the foundation.
- Hired non-professional builders.
- Foundation pit dug at the frozen ground.
- Not until the end of the fertile selected layer.
- Lack of width and density of the geotextile.
- Angle plate was bulk soil from construction waste, top soil and organic matter.
- silty sand chosen for the bedding.
- Lack of rubble in the ground.
- Rammer violation of the technology.
- Kosyachny drainage.
User opinion FORUMHOUSE, from whichIn fact, It began the history of UWB RF.
Vladimir Tallinn
Preparation of the base in UWB - the most important and the most important element of this type of foundation. The cushion should be rubble or Skalník or concrete fight. Sand - is only planarization layer. Correct cushion - into the pit pour a large rubble. Then chippings for wedging large. The uppermost layer - sand whichscores all remained small voids and compacted asphalt to the state! Do not forget about the drainage.
Spacewalker
Architect
The UWB everything, including communications, embedded in the concrete at a time. In the case of marriage, make a partial disassembly and reconstruction of the plate is no longer possible.
Pay tribute topikstarter threads about emergency UWBHe spoke openly about his problem. His experience will serve as a doctrine, not to do the UWB all who planned to build winterized Swedish stove.
The story UWB a_ivanov not finished. About dismantling kosyachny and pouring new - right warmed Swedish plates, we describe in the second part of the article. Look for updates on our site!
Learn all the details of the epic with the warmed Swedish plates can be in the subject line: "Dipped UWB plate after pouring. Help, what can I do? ".
Recommended article:
- When the house starts with UWB, which tells about pros and cons of UWB, Stages of preparation for installation and how to reduce the cost.
- Features of the device serviceable communications in the slab foundation: whether it is necessary to ensure the maintainability of communications under the slab foundation, how to lay the "unrecoverable" communication by UWBNot to fall into the millions.
- Fill the formwork: how to make the formwork for the foundationTo avoid being rasperlo when concrete is poured from the mixer.
In the video - Insulated Swedish Plate. A detailed account of this technology from the specialists, builders and manufacturers of specialized materials.
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