cracking
In petrochemistry, petroleum geology and organic chemistry, cracking is the process whereby complex organic molecules such as kerogens or long-chain hydrocarbons are broken down into simpler molecules such as light hydrocarbons, by the breaking of carbon-carbon bonds in the precursors. The rate of cracking and the end products are strongly dependent on the temperature and presence of catalysts. Cracking is the breakdown of a large alkane into smaller, more useful alkenes. Simply put, hydrocarbon cracking is the process of breaking a long chain of hydrocarbons into short ones. This process requires high temperatures.More loosely, outside the field of petroleum chemistry, the term "cracking" is used to describe any type of splitting of molecules under the influence of heat, catalysts and solvents, such as in processes of destructive distillation or pyrolysis.
Fluid catalytic cracking produces a high yield of petrol and LPG, while hydrocracking is a major source of jet fuel, diesel fuel, naphtha, and again yields LPG.
View More On Wikipedia.org
Fluid catalytic cracking produces a high yield of petrol and LPG, while hydrocracking is a major source of jet fuel, diesel fuel, naphtha, and again yields LPG.
View More On Wikipedia.org
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Help grout cracking all done through builder and his own tilers
Hello need some help had a new bathroom done though a builder and the tiling does not look like what I think it should, but want to know if I’m being overly picky? They was rulers who did it, The tiles do not line up where shower was installed it now got a gap at the bottom of the shower where... -
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Grout cracking, corner of tile bebonded
Last Dec tiled a small conservatory (13m) with 600mm porcelain tiles. Prior to tiling another contractor had laid wire type underfloor heating and gone over it with leveller. I believe the thin insulation sheets were installed as well. Last week I was called back as one 6 inch length of joint...- gettingby22
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- corner cracking grout grout cracking tile
- Replies: 0
- Forum: America
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Cracking tiles when cutting 600mm Cheap cutter??
Hi everyone. Tiling my bathroom first time and going well so far! 600x300 ceramics on walls and plan 600x600 porc on floor. I’ve borrowed a QEP Big Clinker and it’s cut 300mm fine so far, no failed cuts out of about 8-9 I’ve done. HOWEVER I tried to cut long ways 600mm and tiles kept cracking...- ajpercival
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- cheap cracked cracking cutter cutting first job tiles
- Replies: 6
- Forum: America
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Porcelain tiled kitchen floor - cracking after 2 days
Hi all, Just after a bit of advice please. I had my kitchen floor tiled last week (porcelain tiles). I think there is movement and cracking/crumbling grout in some of the tiles. I supplied the tiles and the grout. The tiler supplied everything else including the adhesive. I think he’s used the... -
Why are my new tiles bowing out and cracking? Please help!
My newly tiled bathroom wall has presented a few issues in the last few days. Some of the tiles appear to be popping off with cracked grout lines and where this has occurred there is some bowing of the wall. I also have a tile in the bottom left corner that has cracked down the surface. This is... -
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How to stop cracking if even
I don't even know if this is correct forum for this. On a new extension, the client has asked my opinion on this. Originally there was one ensuite on the exterior side of the extension. It's now been boarded out in half so the client can get another toilet/wash room on the opposite side of the... -
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Cracked tile! Need advice!!
I had ceramic tile installed and 6 months later I noticed cracks in about a dozen tiles. The cracks form 2 straight parallel lines 3 ft apart. The contracter says it is a high traffic area and the tile I chose was poor quality. The store says the tile is good quality and that it wasn't... -
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has anybody experienced Riva subway wall tile cracking?
I have installed a Riva subway wall tile in two large showers. 5/8" sheetrock, paper, chicken wire, floated tile installed with Ardex x4 thinset. Tile are without grout joints, lug on lug. I have hairline cracking under the glazing. I can see it but really cannot feel it through the glazing...- Dimensional 12 remember
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- cracking experienced tile wall
- Replies: 0
- Forum: America
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L Shaped Tiles Cracking
Hi All, I'm on with tiling all my downstairs rooms with 60cm x 60cm High Gloss 9mm tiles. All was going when until recently I noticed a few tiles have cracked? They had been down a week or so without issue, no sign of cracking when I grouted them?. I spent a lot of time preparing the sub... -
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Tiles cracking and banging noises
Hi all After some advise, got builder coming back today to investigate, Everything they have done I have had problems with, from roofing to plumbing, We have had our garage converted to kitchen, so they had to raise the floor area of garage with suspended floor to take it to same level as... -
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Preventing tiles cracking/moving on suspended floor wet ufh
Hello, just seeking some much appreciated advice about tiling over a wet ufh system which is being installed in a 31m2 room with a suspended floor. We’ve bought an ufh system which is specifically designed for this kind of retrofit (Nu Heat lo pro max). The ufh will be encased in self-levelling... -
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UFH and herringbone porecelain
Hi, I’ve just had an extension added to my kitchen. The new kitchen space will be roughly half and half (total 56m2) with the original half having no UFH and the new half will have a wet system installed. I’ve bought 90cm x 15 cm tiles which I want laying in herringbone style. I’m now concerned... -
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Tile cracking at edge of cut
I have a Rubi manual tile cutter which is quite new. It has been fine initially but now each tile I cut fragments at the top. I cut from the bottom up but three tiles in a row have cracked the corner off at the top. Any ideas what I am doing wrong? These are all standard straight cuts. Nothing...- Accountantbytrade
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- canada cracking cut edge tile
- Replies: 5
- Forum: Canada
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Tiles cracking on new shower nib wall
Hi, We have recently had our bathroom updated and a new Brick nib wall put in and tiled. Within 6 weeks it had cracked on both sides and metal trim had come away. The bathroom renovator came back and replaced the tiles with new adhesive (type used in pools) but I have noticed after 3 weeks it...- Janie
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- cracking former shower shower tray tile tiles wall wetroom
- Replies: 4
- Forum: Tanking and Wetrooms Forum
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blade for cleanest cut and cut with not cracking bond
unfortunately after tiling the kitchen I realized I want to end the tile about 6 inches back where it currently meets a hardwood floor for a cleaner transition line. see pics for showing the line I want to cut back, about 6 inches, my line would be the masking tape. I would like the new tile...- bbxrider
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- blade bond cracking cut not
- Replies: 0
- Forum: General Off-topic Chat (nothing tile)
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butech anti cracking mat
Has anybody had more experience on laying this mat ? seen one tiler lay it on adhesive then back the followng day to lay the tiles ? very thick mat with no penetration of adhesive coming through . all tiles ,adhesive etc supplied by Porcelanosa and specified mat over liquid screed with...- Never ending
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- canada cracking
- Replies: 3
- Forum: Canada
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Grout cracking and discoloration
Hello all I'm new to the forum but read a lot of threads on here. October 2018 we had 2 new bathrooms fully fitted out. Porcelain tiles on floor and walls. Issues started as soon as the first bathroom was completed. The grout started to crack on the floor. Porcelanosa came out to inspect as...- Reading1986
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- canada cracking grout grout cracking
- Replies: 11
- Forum: Canada
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Cracking of cut tiles
Evening All, I have recently had large format tiles installed 1200mm x 2400mm x 6 mm thick. All laid to a very good standard on top of UFH however 90 percent of the cut tiles have cracked. There is no other cracking on any full tiles or grout lines that suggest it’s structural. I have attached...- Dean Evans
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- canada cracking cut tile tiles
- Replies: 21
- Forum: Canada
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UFH screed showing few cracks, is Ditra Mat essential ??
Hi need advice. We had the wet UFH done topped with screed. Been a month since the screed was done. Cracks have appeared at a few places. Is putting Ditra Mat absolutely essential ?? Will it affect the heat coming up from the UFH ?? Do the cracks need to be fixed ?? Thanks -
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Sub Floor cracks with UFH
Hi everyone, I had my floor ripped up after a leak two years ago and wanted to get UFH heating system in my kitchen. The kitchen units were not removed but the floor around was back to original concrete base (house circa 1880). see pictures I wanted to maintain the original height of the floor...
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