KolaShangOne:


How much are they? Do we have to screed the wall before applying it?
And do we have to still paint it after applying?

KolaShangOne:


Oga Abdul, your 1,2.5,3.5 gives you M25 grade concrete.. That's 1 cement to 5 sand to 7 aggregates.. Do you use additives? Or could it be the 42.5R cement? Or the size of the aggregates?

I know it's 1.1.2. that's guaranteed to give M25..

I use 1,3,4.5 for my bungalows.. I get up to 18 -20N/mm² after 28days..

gbadexy:

I haven't seen it used inside sir. It has rough texture.

Slimszy:
Hi guys, I am currently facing an issue of water damp in my building. It's so frustrating.

I have broken the plaster about 2 feet above the ground in the interior, and it has risen to the upper part within 2 months, causing the screeded wall to peel off. I am completely tired of maintaining and maintaining a new house.

I need your advice please.

gbadexy:

Good morning chief engineer,
Graffitex is N16000 and it covers 6/8 sqm per drum.
The wall does not need to be screeded before application. It comes in different colors too and doesn't need painting but varnish could be applied on it to give it a shiny effect.
I've been asked severally online and offline if it could be applied on an unplastered wall and an idea just occurred to me that it would be possible if the blocks are primed with good quality paint.
This would help to make the surface of the blocks less porous, bind the loose particles and form a surface that would allow smooth application without wasting the graffitex.

oduncojamaica:

Thank you sir.
So is there any paint to use against the wall damping, like the picture below

gbadexy:

There is a undercoat but it is only a palliative and not the total solution.
It would seal off the wall but water would still manifest elsewhere with weaker path of resistance.
The undercoat would also have to be applied very high otherwise the water could rise high above the coat to manifest.
Nothing beats preparation at the building stage like the experts mentioned or look for the source if it's leaking pipe or from joints in bathroom tiles adjacent and fix it.

KolaShangOne:


How much are they? Do we have to screed the wall before applying it?
And do we have to still paint it after applying?

gbadexy:

You may use premium grade emulsion sir.
It's durable for external use also it just doesn't have the low sheen or cleanability like the matte.


The premium emulsion or matte if slight sheen is desired.
Matte: N28000
Premium emulsion: N16000
Satin: N35000
Silk: N45000
The previous price included cost for logistics and equipment cost for application during the promo period.

MrOkenwa:

I sent you message on your WhatsApp sir. Thank you

gbadexy:

Good morning chief engineer,
Graffitex is N16000 and it covers 6/8 sqm per drum.
The wall does not need to be screeded before application. It comes in different colors too and doesn't need painting but varnish could be applied on it to give it a shiny effect.
I've been asked severally online and offline if it could be applied on an unplastered wall and an idea just occurred to me that it would be possible if the blocks are primed with good quality paint.
This would help to make the surface of the blocks less porous, bind the loose particles and form a surface that would allow smooth application without wasting the graffitex.

redgem:


Will save this here cos I am considering using graffitex...thanks for the response, God bless you...

money121:

Don't worry your engr. Av reachout to us
But he want my installer to come and retake the measurement both of them agree to meet at site tomorrow

Slimszy:
Hi guys, I am currently facing an issue of water damp in my building. It's so frustrating.

I have broken the plaster about 2 feet above the ground in the interior, and it has risen to the upper part within 2 months, causing the screeded wall to peel off. I am completely tired of maintaining and maintaining a new house.

I need your advice please.

money121:
She's here on nairalander
All vendor watchout do your proper deligence before sealing deal with some of those in diapora, most of them are nothing but Apani lekun ja ye,Ripper,Scammer
Her full name is Omowunmi Allen Omotayo

A serial Fraudster On Nairaland

So sure you are seeing this if you refuse to pay back my 2m+ the remaining yr to used on earth you will not know peace Unless you pay back my Money

OLD FOOL

money121:
She's here on nairalander
All vendor watchout do your proper deligence before sealing deal with some of those in diapora, most of them are nothing but Apani lekun ja ye,Ripper,Scammer
Her full name is Omowunmi Allen Omotayo

A serial Fraudster On Nairaland

So sure you are seeing this if you refuse to pay back my 2m+ the remaining yr to used on earth you will not know peace Unless you pay back my Money

OLD FOOL

gbadexy:

Good morning chief engineer,
Graffitex is N16000 and it covers 6/8 sqm per drum.
The wall does not need to be screeded before application. It comes in different colors too and doesn't need painting but varnish could be applied on it to give it a shiny effect.
I've been asked severally online and offline if it could be applied on an unplastered wall and an idea just occurred to me that it would be possible if the blocks are primed with good quality paint.
This would help to make the surface of the blocks less porous, bind the loose particles and form a surface that would allow smooth application without wasting the graffitex.

Aventures:
Hello everyone, Las las @ Akinola88 Vs Rotech77 (or we say 88vs77) has been partially solved so to say and this thread can return to learning status.

Can we kindly share lessons learnt from this event ranging from moral, technicality and finance

Lesson learnt by me

1. Lowest qoute is not always the best atimes. Client should engage cost expert such as QS, project manager for cost analysis to determine the best qoute that will help in smooth project delivery

2. Engineers/contractors should not be greedy by intentionally luring client to give you Job by qouting low, with the intention of coming back to plead for more fund or delivering poor structure.

3. A third eye as Quality control and Assurance can be engaged to avoid stories that touch after some few years of delivery, note that houses are built to last for at least 70 years, even at 70yrs the house can still live longer far beyond with minimal retrofitting.

4. Liking or falling for beautiful pictures is not enough for contractors selection, get references from both online and offline of your choice contractor, physical visit to ongoing and past projects as well is a plus. Choose wisely.

5. Tiling parapet wall of a flat roof is not the best solution, rathe cladding with aluminum flat sheet is the best. Tilers or masons don't know how to walk on roof so obviously they would do damage to the roof, meanwhile the cement and aluminum sheet don't bond, it is a matter of one season leakages is inevitable.

Kindly add yours and @77 and @88 can as well share their personal lesson learnt.

Thank you all.

abdulwastecx:


All these are excellent points coming from years of Engineering and construction experience.

1. I would say, surely that QS should do the take-off and allow the contractors to put the rate. A mechanism can be put in place to verify that the items are delivered based on the specifications. For example, Concrete grade can be verified by cube tests, block strengths, steel strength,
etc can be very by material testing.

2. I think there is no way to solve this problem of contractor greed. Also, I've observed that people-trained engineers are more aware of the actions of cutting corners and not really building according to building codes. I'm not saying this because I'm an engineer or biased towards the civil/structural engineering profession. Also, I'll advise that when you can't hire a civil/structural engineer to build your structural frames/Carcass for any building over a bungalow you should hire them as a consultant.

3. Quality control is one of the most important parts of construction. For example, the difference between M15 and M25 can be a lack of monitoring and poor quality control. too much water in like half a bucket can weaken concrete by more than 50%. A lack of vibration may render it very weak that which will allow the rebar to corrode etc. I would put that durability is as important as the strength of the concrete. Quality control requires that you have an expert on-site to make sure that materials meet specifications and that construction is done based on guidelines.

Adeyemi0:

I am surprised too, I'm on the similar project and it will cost upto 7m after roofing though with German floor and septics.

Aventures:
Hello everyone, Las las @ Akinola88 Vs Rotech77 (or we say 88vs77) has been partially solved so to say and this thread can return to learning status.

Can we kindly share lessons learnt from this event ranging from moral, technicality and finance

Lesson learnt by me

1. Lowest qoute is not always the best atimes. Client should engage cost expert such as QS, project manager for cost analysis to determine the best qoute that will help in smooth project delivery

2. Engineers/contractors should not be greedy by intentionally luring client to give you Job by qouting low, with the intention of coming back to plead for more fund or delivering poor structure.

3. A third eye as Quality control and Assurance can be engaged to avoid stories that touch after some few years of delivery, note that houses are built to last for at least 70 years, even at 70yrs the house can still live longer far beyond with minimal retrofitting.

4. Liking or falling for beautiful pictures is not enough for contractors selection, get references from both online and offline of your choice contractor, physical visit to ongoing and past projects as well is a plus. Choose wisely.

5. Tiling parapet wall of a flat roof is not the best solution, rathe cladding with aluminum flat sheet is the best. Tilers or masons don't know how to walk on roof so obviously they would do damage to the roof, meanwhile the cement and aluminum sheet don't bond, it is a matter of one season leakages is inevitable.

Kindly add yours and @77 and @88 can as well share their personal lesson learnt.

Thank you all.

Aventures:
In addition, in a process whereby clients wants to choose his sub contractors for stuff like POP, Electrical, Tiling, Smart home fittings, Aluminum should not be a problem to any contractor at all. But I will advice a synergy from planning stage. That is the client should choose his preferred sub contractors and carried them along from the beginning, review the plans together along with the designers and main contractors, draw out approved specifications for each trade and note all the sub contractors should be supervised by the main contractors at a reasonable fee. The reason behind this is to avoid blame shift, hinderances for effective execution of any aspect of sub contractors work, for example if you bring in a low voltage/smarthome contractor at a later time, executing his work may be difficult or in process he may damage some imbeeded conduits in the process of breaking wall. If such has been introduce from onset he would be invited for his input time to time to facilitate easy and perfect installation.

Main contractors should be the eye of client in this regards because the overall Glory still comes to him when the house is well and tastefully delivered.

Aventures:
In addition, in a process whereby clients wants to choose his sub contractors for stuff like POP, Electrical, Tiling, Smart home fittings, Aluminum should not be a problem to any contractor at all. But I will advice a synergy from planning stage. That is the client should choose his preferred sub contractors and carried them along from the beginning, review the plans together along with the designers and main contractors, draw out approved specifications for each trade and note all the sub contractors should be supervised by the main contractors at a reasonable fee. The reason behind this is to avoid blame shift, hinderances for effective execution of any aspect of sub contractors work, for example if you bring in a low voltage/smarthome contractor at a later time, executing his work may be difficult or in process he may damage some imbeeded conduits in the process of breaking wall. If such has been introduce from onset he would be invited for his input time to time to facilitate easy and perfect installation.

Main contractors should be the eye of client in this regards because the overall Glory still comes to him when the house is well and tastefully delivered.

somehow:
If you get it wrong with the main contractor, you're in for a long ride.

abdulwastecx:


I think 1 bucket is 25liters.

It's one bucket of water to one bag of cement.
Let me use this simple calculation to buttress the point.
assuming that you want to use a Water/cement ratio of 0.5. Hence for 50kg of cement, you will need 25kg of water.
Since the density of water is 1000kg/m3, and mass = density x volume.
since one bucket is 25litres = 25/1000 m3
mass = 25/1000 x 1000 = 25kg.
hence 25litres of water is 25kg.

Also to the final question that you asked,
1:2.5:3.5 mean
for every bag of cement ( which is 2 head-pan (flat)
5 head-pan of sand ( flat the surface, don't hip it)
7 head-pan of gravel (flat the surface don't hip it)