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Old 03-13-2013, 06:26 PM   #1
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Mud Mixture


So I mixed up a 1 to 5 mixture to make some mud. It has dried and I think I may have been a little light on the cement.

Here is what I did:

1 part cement

5 parts sand

Mixed these 2 in a 5 gallon bucket, just a small batch, then added water.

Ended up with a mix that would form in my hand, but would break up when dropped.


Now today, if I scratch or rub it it appears to be breaking up. (not chunks but powdery or the like) So did I not use enough water or not enough cement or too much sand?

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Old 03-13-2013, 06:48 PM   #2
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Mud Mixture


What kind of mud we talkin about here? Thinset, grout, shower pan mortar, brick mortar, drywall mud (I hope not).

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Old 03-13-2013, 06:56 PM   #3
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Originally Posted by Seattle2k View Post
What kind of mud we talkin about here? Thinset, grout, shower pan mortar, brick mortar, drywall mud (I hope not).
Shower pan, Sorry! dint think you can use cement and sand on sheetrock!
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Old 03-13-2013, 07:14 PM   #4
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Originally Posted by digitalplumber View Post
Shower pan, Sorry! dint think you can use cement and sand on sheetrock!
I wouldn't be surprised if some DIYer has tried it - interior stucco!

As for the shower pan, wait for a second opinion, but it sound like not enough cement / too much sand in the mix.
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Old 03-13-2013, 07:19 PM   #5
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Mud Mixture


OK, Seattle isn't a tile guy, so no problem.

1:5 is a perfect ration for regular floors, 1:4 is the spec for shower pans. But there's almost no difference in the two. How did you determine the ratio?

You never said what you did with that batch you test mixed. Was it left in the the bucket? If so why, are you making a boat anchor? If you had placed it on the floor as it's intended, and you compacted and troweled it, it would be hard and ready for tiles.

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Old 03-13-2013, 07:32 PM   #6
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Originally Posted by JazMan View Post
OK, Seattle isn't a tile guy, so no problem.

Jaz

Very true. When I did my bathroom floor, I ended up with 4 boat anchors, before realizing that I wasn't suppose to let Rapidset slake for 15 minutes before using it. Hopefully my tiles stay stuck to the ground.
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Old 03-13-2013, 07:34 PM   #7
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Mud Mixture


Thanks JM, actually I am installing a acrylic/fiberglass base. There was a large hole around the drain from an imporper install.

I had this posted on another website, but the mod thought I was asking a ton of questions so he combined them all into one post not knowing I was asking about two different projects. So a link to there would be no good.

Here is a pic of the hole:


I used a plastic painters cup, 1 quart, for my measuring. No and maybe where I went wrong, after blending the concrete and sand, I took half of it and made my mix to fill this hole. It is hard, but I can feel some come off more than what should be just surface sand.

The rest, without water, is in the bucket.

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Quote:
Originally Posted by JazMan View Post
OK, Seattle isn't a tile guy, so no problem.

1:5 is a perfect ration for regular floors, 1:4 is the spec for shower pans. But there's almost no difference in the two. How did you determine the ratio?

You never said what you did with that batch you test mixed. Was it left in the the bucket? If so why, are you making a boat anchor? If you had placed it on the floor as it's intended, and you compacted and troweled it, it would be hard and ready for tiles.

Jaz
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Old 03-13-2013, 10:48 PM   #8
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Mud Mixture


I would not fill that whole, hole with concrete.
All you need is a skim coat at the top about 2" thick.
Sure would be simpler with just a bag of premixed Sakcrete.
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Old 03-13-2013, 11:12 PM   #9
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Originally Posted by joecaption View Post
I would not fill that whole, hole with concrete.
All you need is a skim coat at the top about 2" thick.
Sure would be simpler with just a bag of premixed Sakcrete.
Joe, I filled the hole half way with gravel, then my new mix. Will post some additional pics tomorrow. Here is a pic of what the builder's installer did.



It all broke away easily. Obviously with time, the pan cracked and leaked because it was not level and supported.

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