Slab concrete pouring

**yebo** · February 7th, 2013 08:40 AM

beside cement with sahara you should really put waterproofing material. para sigurado kasi pag nag-crack yang cement tutulo yan. even ceramic tiles is no guarantee that it will not leak, expecially if the cement develops cracks (due to expansion/contraction as the temperature changes during the day, or earthquake). dapat para sigurado cement with sahara, then waterproofing sheet, then cement with sahara again (manipis na lang mga 1 inch). parang asphalt sheets yung waterproofing material.

pero kung tipid, cement with sahara, then makapal na elastomeric paint o kaya yung rubberized paint na gamit sa car park ng malls.

**vinj** · February 9th, 2013 01:55 PM

^ Agree on this. Basic cement + Sahara + waterproof coating. Make sure also maganda yung slope to the drains (better also to be overkill on the drains).

On tiles or rubberized paint, tiles if you're after better aesthetics but do choose tiles that are not slippery when wet.

**earthlyken** · February 10th, 2013 10:14 PM

Thank you guys for all the inputs..do you guys have any idea on the pricing ng tile? Where planning to put 40x40 yung size..magkano kaya po per piece nun?

**yebo** · February 10th, 2013 10:52 PM

depende sa tiles, meron mga local (filhispano, etc) mura lang. meron imported na mura at meron din mahal. depende sa design, finish and quality. better pasyal ka na lang sa wilcon or home depot para makita mo kung anong design at yung tugma sa budget mo.

prices for 40x40cm can vary from as low as P30 each to as high as P300 or more.

**Galactus** · February 11th, 2013 11:15 AM

Don't fall for the cheap China-made tiles which cost less that Php 25.00 a pop (8X10 yata ang size nun). It may look good at first, but in a span of 1 year, mabilis mag-fade and stain easily. Learned this lesson the hard way.

Go for the branded ones (Mariwasa, Eurotiles, etc.). Also, better to use tile adhesive than plain old cement, although old-fashioned installers may tell you otherwise.

**vinj** · February 11th, 2013 11:24 AM

Originally Posted by Galactus

Don't fall for the cheap China-made tiles which cost less that Php 25.00 a pop (8X10 yata ang size nun). It may look good at first, but in a span of 1 year, mabilis mag-fade and stain easily. Learned this lesson the hard way.

Go for the branded ones (Mariwasa, Eurotiles, etc.). Also, better to use tile adhesive than plain old cement, although old-fashioned installers may tell you otherwise.

And the cheap China tiles usually have inconsistent thickness which will give your tiler a PITA.

**lowslowbenz** · February 11th, 2013 12:40 PM

Originally Posted by vinj

^ Agree on this. Basic cement + Sahara + waterproof coating. Make sure also maganda yung slope to the drains (better also to be overkill on the drains).

+ 1

And I added Morta-seal into the mix. Better be safe than sorry.

Re: Tiles, go to Wilcon Depot in Filinvest Alabang, they sell a wide variety of tile brands to choose from. Tile brands: Grespania is my brand of choice.

**Manilablock** · February 11th, 2013 01:13 PM

Originally Posted by earthlyken

Thank you guys for all the inputs..do you guys have any idea on the pricing ng tile? Where planning to put 40x40 yung size..magkano kaya po per piece nun?

Sir hindi po advisable na mabilad ang tiles, me tendency po na mag crack ito. Baka gusto mo ung finish na ginagamitan ng pebbles (wash-out finish).

Also, based on experience ung roof slab in the long run (minsan kahit bago pa) nagkakaroon ng hairline cracks at napapasukan ng tubig, which will cause ng pagtulo sa ilalim or worse kakalawangin ung reinforcemnt bars mo at later makikita mo na lang pumuputok ung kisame (cement finish) dahil nag expand na ung rebars.

Kung kaya pa ng budget mo palagyan mo na lang ng bubong, then saka mo palagyan ng tiles.

Kung final na ung slab mo at hindi mo lalagyan ng bubong, make sure na hindi maiipunan ng tubig ung ibabaw otherwise sakit ng ulo mo yan.

**lowslowbenz** · February 11th, 2013 01:37 PM

Originally Posted by Manilablock

Sir hindi po advisable na mabilad ang tiles, me tendency po na mag crack ito. Baka gusto mo ung finish na ginagamitan ng pebbles (wash-out finish).

Ay, roofdeck pala? I had mine coated with elastomeric paint. 4 coats (initial) para matibay, and recoat nalang every year before the rainy season.

**Horsepower** · February 11th, 2013 03:13 PM

Magk-crack yun pag hindi maganda ang semento, or yung mix mismo ng aggregates. Class AA mix dapat or better (ASTM spec) pag slab.

Anyway, make sure na everything goes down the drain immediately and no pooling of water. Also watch out for water track. Saan ba yan pupunta pag nanjan na.

Elastomeric works as a sealant but you can also use bituminous membrane.

Good luck with your foreman. Nakakatakot yang ginawa mo that you hired an amateur for your own house.