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opus

Talanta is a peer-reviewed scientific journal in pure and applied analytical chemistry. It was established in 1958 and is published by Elsevier, with 15 issues per year. In addition to original research articles, Talanta also publishes review articles and short communications.
According to the Journal Citation Reports, it received a 2014 impact factor of 3.545, ranking it eleventh out of 74 journals in the category "Chemistry, analytical". As of 2020, its impact factor was 6.057.

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  1. S

    Salum gold opus limestone

    Afternoon gents. I’m laying a limestone opus floor, it’s Salum gold opus. Is there a specific technique when spacing them? It seems almost impossible to get an even grout joint consistently. Any help appreciated!
  2. S

    Setting Out Cathedral opus setting out

    morning all, I’m laying my first opus floor and was wondering what’s the best way to set out? I’m sure there’s a method that’s simple but I’m scratching my head a bit! Any help gratefully received!
  3. F

    Pictures Heated opus pattern limestone floor.

    It's been a while since I've laid an opus layout, probably 3 years, they don't seem as popular as they once were, I think it's a timeless layout, anyway I have just completed this one in Derbyshire and thought I would share it. 185w underfloor heating fitted first, then the stone, which took on...
  4. A

    laying unfilled travertine tiles

    Hello all, This is the first time I have used this forum, and after some advice... bare with me.... I am about to lay 40m2 of natural unfilled travertine tiles 12mm thick on top of electric underfloor heating and a 60mm tilers screed. I have a few questions on the best way to go about this...
  5. F

    18mm limestone small sized opus pattern

    Hello guys, Have a large area 110 Sqm to be tiled on new screed on Ditra with an 18mm limestone with small sized opus pattern. My concern is the joint size, the floor has wet heating, and due to the normal issues of opus pattern the joint size needs to be kept very small to accommodate the...
  6. M

    Expansion Joints- Opus Pattern Floor.

    Just a quick one , So I've got a 75 metre floor coming up, existing kitchen, hall and utility with solid quarry tiles that we are taking up back to concrete base then 80 to 100mm sand & cement screed to the extension about 30 square metres ( no underfloor heating in the screed ) so the...
  7. G

    Guys, I'm Panicking

    Really need advice. 80m2 limestone floor is underway, Alpha screed, all moisture tested, sanded hoovered and primed , tiles being laid with anhyfix. The limestone is 900x600, 600x600, 600x300 and 300x300. When I first went to start my customer informed me that not all the stone was in the...
  8. craigy

    French pattern Travertine

    Hi everyone, I am a beginner starting another room at my home here in the US and want to do the French pattern again. Have unfilled unpolished chiseled stone and the tiles are 8x8, 8x16, 16x16 and 16x24. I understand the pattern but when you add the grout line to two 8's it ends up wider than...
  9. macten

    Finally popped my Opus Romano cherry!

    It's taken 8 years but :hurray:
  10. W

    Opus Pattern Question

    We've got a 3 tile size opus pattern we're doing in travertine. The tiles have not been bought as a set, and therefore there's a slight spacing issue. The tile sizes are 610x610, 610x305 and 305x305. Now, they clearly fit together fine with no spacing (assuming they're all perfectly cut to...
  11. N

    opus pattern problem

    got a job coming up , a four size opus pattern style porcelain floor i have done several of these over the years but have always laid them level to avoid any lippage etc due to the differing grout joints direction etc , however the screed on this job is laid to a massive fall due to levels of...
  12. R

    Silver travertine brushed opus style floor tiles

    Hi, first time posting so to all you experts out there looking for a supplier for Silver Travertine for my new extension. I have received a catalogue and samples from "Floors of Stone" I am based in Scotland and finding it hard to find a supplier in Scotland. I'm wary of ordering online and...
  13. H

    Can ratios of tile sizes supplied for an opus romano pattern vary?

    We purchased some Opus Romano and were expecting a ratio of:- A -4 @ 406 x 406 approx 180 B- 2 @406 x 210 approx 90 C- 2 @ 406 x 203 approx 90 D -4 @203 x 203 aprox 180 see images of opus romano tile patterns - Google Search we actually recieved a ratio of A -3 @ 406 x 406 approx 127 B- 3 @406...
  14. J

    Setting out a 4 tile opus pattern

    Hello Ive noted on another thread that I want to do this pattern on my kitchen floor. Ive had a little think about it and have come to the conclusion its going to be a right pain to set out without getting thin cuts whatever I do. Is there any advice that you can give to the best way of...
  15. Y

    Opus Romano, wet floor,enveloped

    Completed photos to follow This was a head scratcher !! Do not comment on walls and bed ! this job was taken over from another tiler who had bodged the job, we finished walls as best we could without ripping off and starting again, and did floor. Floor was set out for best fit to room...
  16. T

    Limestone Roman Opus

    Hi fellas. Used LTP mattstone on Limestone Roman opus. Im not too happy with the finish its left as the colour variation in tiles is too noticable for my liking. Tiles were given a good shuffle, though it seems that a lot of the same sized stone look paler than the rest. What product would...
  17. D

    Clarification on expansion joint on opus floor

    Im in need of some advice as this will be my largest job. Its 45m2 of travertine in opus lay over 3 rooms and am looking for the best method of inserting expansion joints as I tae it a floor that size will require them wheither it be an expansion joint which will be straight and break up pattern...
  18. P

    opus pattern setting out/grout lines

    I'v got a opus pattern travertine floor to do, which includes going around a island. I was wondering what is the best way to go about setting this out. Also when i dry laid the pattern out with a 3mm spacer some of the tiles ended up with a 10mm gap and some had non, would i be better off going...
  19. C

    Opus Pattern

    Hi all, Just wanted some advice on whether it is possible to create a 4 tile Opus pattern with the given tile sizes and whether there is a particular Opus style that would be best suited. 600x600 400x400 300x600 300x300 Cheers, Chris.
  20. A

    Expansion joints in opus porcelain tiles

    Hi, can I please ask for some advice. I am laying 70m2 of porcelain tiles in 4 size opus pattern. The floor is one half new extension (floor levelled about 2 months ago), the other old concrete. I am laying electric underfloor heating. I have patched the old floor to make it as even as...
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