Mix for white cement for bullnose coping?

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sunkissed
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My Pool: Inground, fiberglass over gunite, 65,000 gal, Hayward DE filter
Location: Pennsylvania

Mix for white cement for bullnose coping?

Postby sunkissed » Thu 28 Jun, 2012 08:41

Hi. We are replacing 14 pieces of damaged cast concrete bullnose coping. Removed old, cleaned up beam, deterioration minor... in most areas. now time to set the new coping. was told the bed should be - 1 part white cement and 2 parts white sand. And use the same between coping pieces.

Does that sound right?


czechmate
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My Pool: 16 x 32 gunite21000 gal., Diamond Brite Blue, Swimquip XL pump, DE36
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Mix for white cement for bullnose coping?

Postby czechmate » Thu 28 Jun, 2012 16:27

Coping is nothing more than heavy tiling exposed to the weather elements.
Including the excessive heat collected by coping mass and transferrred to the bonding media.
Therefore, I submit that the proper bonding results would be better achieved by comercial grade flexible acrylic thinset.
It is also quite different process when this is done during the new pool constuction an the fresh, raw beam, or recontruction.
Grouting is than done in complimenting tones, selected by pool builder using sanded grout, never plain white cement mix.
That, is my 2cents.
sunkissed
Pool Newbie
Pool Newbie
Posts: 9
Joined: Wed 30 May, 2012 19:55
My Pool: Inground, fiberglass over gunite, 65,000 gal, Hayward DE filter
Location: Pennsylvania

please suggest mix for white cement for coping?

Postby sunkissed » Thu 28 Jun, 2012 17:02

Thank you so much for your response!! I have to build up the beam a bit due to detetioration - amount needed ranges from 1/2 inch to 3 inchs, with 1 being the norm... so i was going to use the white cement as described to build up and set the coping. no good?

I am kind of stuck with the grout as the section I am redoing is about 15% of the total coping running the perimeter of the pool and the rest was doing with white concrete.

Any insight on the white cement?
czechmate
Swimming Pool Superstar
Swimming Pool Superstar
Posts: 401
Joined: Sat 16 May, 2009 09:20
My Pool: 16 x 32 gunite21000 gal., Diamond Brite Blue, Swimquip XL pump, DE36
Location: Texas

Mix for white cement for bullnose coping?

Postby czechmate » Fri 29 Jun, 2012 05:39

White Portland cement is a wonderful and expensive material.
But its strong suite is its color which is mostly the only difference from the regular cement.
For a build-up substrate I would personally use a S-type mortar, sold in Home Depot or Lowe's. It is commercial pre-mixed material (mortar) with cement added.
It is used for fireplaces, strong walls and chimneys. I have used it last time as a raised substrate under my new pool tile.
It is easier to work with and has minimum shrinkage ( limiting the cracking while drying) compared with wet cement. (Just make sure you getting the bags premixed with sand!)It costs about 6 bucks.
Good luck!
sunkissed
Pool Newbie
Pool Newbie
Posts: 9
Joined: Wed 30 May, 2012 19:55
My Pool: Inground, fiberglass over gunite, 65,000 gal, Hayward DE filter
Location: Pennsylvania

Mix for white cement for bullnose coping?

Postby sunkissed » Fri 29 Jun, 2012 07:56

Thanks for the info! I will use that in the areas of deterioration.

I already have the white portland cement and sand for the white concrete. Is is considered WRONG to use?

The mix I was given by my friend who has done pool repairs for many years - 1 part cement, 2 parts sand.

Does that make sence? no lime? He did not see the deterioration of a beam and therefore did not know the mortar bed would have to be so deep.
czechmate
Swimming Pool Superstar
Swimming Pool Superstar
Posts: 401
Joined: Sat 16 May, 2009 09:20
My Pool: 16 x 32 gunite21000 gal., Diamond Brite Blue, Swimquip XL pump, DE36
Location: Texas

Mix for white cement for bullnose coping?

Postby czechmate » Fri 29 Jun, 2012 10:27

Go to ehow.com, to get a full understanding of the compounds and its mixing.
You may want to add hydrated lime as well.

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