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mortar

A mortar is usually a simple, lightweight, man-portable, muzzle-loaded weapon, consisting of a smooth-bore (although some models use a rifled barrel) metal tube fixed to a base plate (to spread out the recoil) with a lightweight bipod mount and a sight. They launch explosive shells (technically called bombs) in high-arcing ballistic trajectories. Mortars are typically used as indirect fire weapons for close fire support with a variety of ammunition.

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  1. T

    Porcelain Is Mortar depth CRITICAL????

    I understand the mortar bed is made 4/1 or 5/1 when I lay my 20mm porcelain outdoor tiles. Would it be detrimental if I was to increase the depth of mortar in some places to 70 or 80 instead of the recommended 40/50mm depth. Just to get my fall rate away from house as it meets my retainer wall...
  2. E

    Laying bricks over concrete slab. Mortar or tile adhesive?

    Hi, I'm planning to do a herringbone brick floor over a concrete slab with some reclaimed brick tiles . The bricks have been sawn into narrow longs roughly 50mm x 50mm x 250mm, but there is still a fair bit of variance. Have enough extra that I can get the variance down to 5mm by being...
  3. S

    Is it OK to tank over rapid setting render shortly after it sets?

    The rationale behind the rapid setting mortar is to speed up the work. At the same time, a tanking system essentially traps any moisture inside. It seems to me that tanking shortly after the mortar sets (in, say, one or two hours) is a leap of faith. What do you think?
  4. R

    Forgot to mortar down insulation board to floor....

    Hi, I bought some sheets of 6mm insulation board to install on my bathroom floor. (It has blue foam in the middle of it.) My subfloor is 21mm treated wooden floorboards. I've freshly installed them and they're nice and level and smooth. (I even planed some of the joists to make sure I'd have a...
  5. K

    Best way to remove Mortar from ceramic tile

    I have ceramic tile that has lifted due to tenting. I want to remove the mortar from the underside so I can reuse the tile. I have a 10 x 8 feet section to remove clean and recement down. I heard you can soak the tile in water to soften the mortar, but this is not the case. Chipping away at it...
  6. B

    Mortar bed height

    So I’ve just laid my dry mortar bed for a sloped shower. It slopes to one side towards a Kerdi line linear drain. The mortar bed turned out well I think (first one ever). It’s good and solid and the slope is right. However I thought I was erring on the side of caution by leaving the height of...
  7. F

    Nicobond Nicobond pointing mortar

    Has any one used this product ? It's supplied by customer, they got it with there brick slips which I am soon to be fitting
  8. Dan

    Mapei Ultralite Mortar Pro

    For all the tile installers out there, take a look at Mapei's new Ultralite Mortar Pro -- a professional-grade, lightweight, single-component mortar that can be used for medium-bed and nonsag applications as well as for thin-set installations, which can contribute to LEED points through its...
  9. T

    Tiling adjoining rooms - mortar in kitchen room raises height

    Hi all we are about to start tiling adjoining rooms, the kitchen and dining room. We have taken down the wall that separated these rooms so the rooms now effectively are one. We have ripped up the wooden flooring that was down in the dining room and the tiles that was down in the kitchen...
  10. N

    Tiler required - quarry tiles solid bed fixing in lime mortar (Surrey)

    Can anyone put me in touch with a tiler who does restoration/period refurbishment work and works with lime mortar? I am replacing the victorian plain red quarry tiles in an old Victorian scullery with reproduction quarry tiles of a different colour. The original Victorian tiles are uneven, worn...
  11. C

    Hardiebacker - can I bed on mortar over floorboards?

    Hi, Am about to take on my first tiling job and am throwing myself in the deep end with a load of natural stone (marble and granite). It's kitchen and bathroom on a first floor, so wooden subfloor. I'll screw down the existing boards and plywood of course, but have bought 6mm Hardibacker to...
  12. P

    Mortar or adhesive? pointing or grouting? - terracotta tiles on gypsum screed.

    Hi again we were last in touch around Christmas last year about laying terracotta tiles on a gypsum screed. We established that we needed to install the GSHP and dry out the screed before tiling. UFH has been running since mid March and is now at 25 degrees C so conclude it should be dry...
  13. S

    Using a brick mortar gun for grouting

    Is it possible to use a brick mortar gun for grouting? Using black grout for a bathroom floor so just thinking for the cleaning up after. Any advice would help Cheers
  14. B

    Repairing/Improving Insufficient Mortar Slope

    Well I installed my first shower (in my own home) and carefully created a pre-slope, used a three-piece drain, weep hole guard and created a properly sloped mortar bed (almost). I have not yet laid the floor tiles. My question relates to the "almost" qualifier. Generally, the mortar bed is...
  15. D

    Render options - Lime mortar, cement mix etc!

    There is plenty of information out there on render mix, but its all very complicated :lol: I have had a good quote (not the cheapest) on rendering two cotswold stone internal walls (property circa 1870). The plasterer suggested using BAL APD to prime, and then a lime, cement, sand mix for the...
  16. R

    Mortar beds on walls and floors?

    How many of you are called on to do mortar work? It's few and far between here in most markets in the US. There are selected markets where mud is still king, however. I learned from a guy who had been floating mud since the 60's, and I think he learned it from a guy who had started back in the...
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