What kind of masonry cement is the best one for brick laying

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What kind of masonry cement is the best one for brick laying

Postby Khunchai » Wed Jun 04, 2014 11:55 am

I need your advice.

We are going to start building a new house soon.

This is a modern 2 storey house. The roof is made of CPAC roof tile.

The walls to be made of standard red bricks.

What is the best masonry cement or mortar mix to be used for the wall brick laying :?:
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Re: What kind of masonry cement is the best one for brick la

Postby Mike Judd » Wed Jun 04, 2014 1:59 pm

What ever mortar you use , you will need a lot of it, when you look at a red brick wall there's nearly as much mortar as there are bricks. Plus when they were first used I don't think they ever chased them out for electric conduits or water pipes to be buried, when that is done as most of us require , it leaves very little actual brick work in your wall. But then that maybe your builders choice.
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Re: What kind of masonry cement is the best one for brick la

Postby Khunchai » Wed Jun 04, 2014 2:15 pm

And what is the best kind of mortar to use for those standard red bricks in Thailand :?:

What is your opinion :?:
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Re: What kind of masonry cement is the best one for brick la

Postby cooked » Wed Jun 04, 2014 3:17 pm

I would use 1 part cement, 4 parts builders' sand. Too much cement is not good practice and a waste of money.
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Re: What kind of masonry cement is the best one for brick la

Postby Khunchai » Wed Jun 04, 2014 4:27 pm

Please excuse my ignorance, is it recommended to use the best grade of Thai cement "Chang Daeng" (the red one) for the masonry work to build the house walls with the standard Thai red bricks?

My understanding is that the cement grade is supposed to match the brick color, am I wrong? :roll:

Our construction boss is saying that we can not use "Chang Daeng" cement (the red one) because it is setting too fast... Oh, my God. :shock:
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Re: What kind of masonry cement is the best one for brick la

Postby cooked » Wed Jun 04, 2014 5:28 pm

You are worrying too much. Unless this is a load bearing wall, the quality of the mortar isn't too important. I learned that the mortar shouldn't be stronger than the bricks, as if cracking occurs, it will be the bricks that go first, not the joints. If the mortar is going off too fast, there are additives to slow things down, we used lime which is really cheap. Sorry, I never used this in Thailand. If it goes off too fast, then he should make it in smaller quantities.
Sounds like you are being bamboozled by your bricklayer. I feel for you...
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Re: What kind of masonry cement is the best one for brick la

Postby Khunchai » Thu Jun 05, 2014 11:10 am

Our house construction boss suggests the following cements for various purposes:

Is it a good choice :?: What is your opinion :?:

You can click the links above for specifications.
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Re: What kind of masonry cement is the best one for brick la

Postby BKKBILL » Thu Jun 05, 2014 2:15 pm

cooked wrote:You are worrying too much. Unless this is a load bearing wall, the quality of the mortar isn't too important.


Think that about covers it.

I'm just wondering why "The walls to be made of standard red bricks" and not ACC blocks since after factoring in everything prices are about the same.
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Re: What kind of masonry cement is the best one for brick la

Postby Khunchai » Thu Jun 05, 2014 2:55 pm

Do you mean AAC blocks?
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Re: What kind of masonry cement is the best one for brick la

Postby Khunchai » Thu Jun 05, 2014 3:09 pm

A quote from another forum:
I am still amazed how everyone in Thailand uses AAC without any understanding of the technical requirements even for NON load-bearing. For instance, everyone apparently just goes and makes a slab without knowing the slightest need of these blocks which have absolutely critical requirements for things like compensation for differential expansion between the slab and the blocks. It seems Thai's are competent with only things like red bricks so probably the best advice is to skip AAC if you want any chance of a robust fit and finish.
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Re: What kind of masonry cement is the best one for brick la

Postby fredlk » Thu Jun 05, 2014 3:19 pm

Khunchai wrote:A quote from another forum:

More EggSpurts.
Khunchai wrote:the best advice is to skip AAC if you want any chance of a robust fit and finish.

Complete bullshit.
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Re: What kind of masonry cement is the best one for brick la

Postby Khunchai » Thu Jun 05, 2014 3:32 pm

My understanding is that very few workers in Thailand have experience with AAC blocks. In my opinion it's probably better to stick to the good old standard red brick just to be on the safe side. Please correct me if I am wrong... :oops:
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Re: What kind of masonry cement is the best one for brick la

Postby Roger Ramjet » Thu Jun 05, 2014 4:28 pm

Khunchai wrote:My understanding is that very few workers in Thailand have experience with AAC blocks.

If you'd care to have a look at a few builds you'll find that many of them were done using AAC (superblock).
Nearly all new builds in and around cities are now being done in Superblock. It is as cheap as red bricks, takes a quarter of the time and is far simpler.
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Re: What kind of masonry cement is the best one for brick la

Postby Khunchai » Thu Jun 05, 2014 4:36 pm

Thank you for your advice.

I will certainly pay attention to those AAC blocks.

Is "AAC block" and "Superblock" the same thing or not?

What kind of masonry cement is the best one for these "Superblocks" :?:

Shall we use the same kind of mortar as for the red bricks :?:
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Re: What kind of masonry cement is the best one for brick la

Postby Khunchai » Thu Jun 05, 2014 5:01 pm

What is the advantage of using AAC superblocks instead of standard red bricks?

Which one is stronger and more durable?

What are the pros and cons of AAC superblocks as compared to standard red bricks?
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