KAJ BUILD

Contractor in custom homes and semi-commercial buildings(apartments). Mansonry, electrical, plumbing, external and renovation works.

[KAJ BUILD @KajBuild]

Thank you to our customers for the trust. New ones do not hesitate to contact us on 0773323902 #BuildwithAdam

[Charles Onyango-Obbo @cobbo3]

Egypt's giant New Administrative Capital recently became the country's official seat of government. It contains Africa's tallest building, biggest mosque and second-biggest stadium, as well as the largest cathedral in the Middle East. Many in Egypt however question whether the $58 billion being spent on the city could be better invested elsewhere. – Dezeen/Photos by Johan Blasberg

[KAJ BUILD @KajBuild]

Rate the works

[Buregyeya Apollo, PhD @ApolloBuregyeya]

Do You Really Need Solid Blocks for That Wall?
=====

Allow me to take you back to class today. No assignments. Just a group discussion.

17 bags of cement give us 680 hollow blocks, each measuring 200 × 200 × 400 mm, with a compressive strength of 3.5 MPa. Yes, 3.5 megapascals. In wall-building terms, that is already strong, already functional, and more than what your wall will ever need.

But some clients still insist, “I only use solid blocks.”
Alright then, let’s entertain that.

To make 680 solid blocks of the same size, you need double the cement, 34 bags, just to reach 7.5 MPa.

That’s double the cost,
double the pressure on your budget,
and zero added value,
unless you are building a basement for those honouring EPS tickets. You know them. Those unpatriotic citizens.

Now let’s put on our engineering helmets.

Take a typical residential house wall, 3 meters high. That gives us about 15 courses of blockwork. We are wishing away the mortar joints.

Each course, per meter of wall, takes 2.5 blocks. The block is 400 mm long, so you only fit 2.5 blocks in one metre, assuming we ignore mortar joints.

So we have:

15 × 2.5 = 37.5 blocks per metre of wall

Assume each block weighs 35 kg (conservative estimate for a solid block since most solid block weigh just below 30kg).

Then:

37.5 × 35 = 1,312.5 kg

Now double that to include roof load:

1,312.5 × 2 = 2,625 kg

This is the maximum dead weight acting at the base of 1 metre of wall, that most critical point of a continuous vertical wall.

The cross-sectional area of the wall is:
200 mm = 0.2 m
So: 1 m × 0.2 m = 0.2 m²

Now apply Senior Two Physics:
Stress = Force ÷ Area
Stress = 2,625 ÷ 0.2 = 13,125 kg/m² = 0.13 MPa

Yes, just 0.13 MPa. That’s the actual stress your block needs to handle.
And remember, if we used 15 kg for a typical hollow block, that light weight thing with holes in the middle, the stress would be much lower.

So, now that you know we need only 0.13 MPa stress, why are we chasing 7.5 MPa?

By now, you understand why the traditional soil blocks perform well in walls, and they contain zero cement.

In fact, in over 20 years of engineering practice, I have never seen a building collapse because of weak walls. So, this obsession with strength is not about structure. The real concern is durability.

We want blocks that do not disintegrate under rain, sun, and time. That is why we insist on a minimum cement content to ensure the block lasts. And a solid block of 7.5MPa has a lower cement mix ratio compared to a hollow block of 3.5MPa. Strength has much to do with the quantity of materials in a unit volume. And when you combine that with Eco Concrete Ltd @ecoconcreteUG ’s industrial-scale machines, you get a product that is strong enough, durable enough, and gives your money 20% more mileage on your building walls.

We camp on your site.
We guide your team.
We bring knowledge into your construction decisions.

You can get a free quotation of our concrete product via https://t.co/Iz2KGIclPp

[Red Bull New York @NewYorkRedBulls]

NEWS 📰 Ibrahim Sekagya has been promoted to a full-time First Team Assistant Coach.

Ibra will join the first team immediately and coach his final @NYRBII match on June 15 vs. Chattanooga FC.

[KAJ BUILD @KajBuild]

@RupareliaSudhi 402

[KAJ BUILD @KajBuild]

Making it happen......0773323902 0r 0758938004

[Eng Abdul Kariim Katende @welandfab]

I have finally installed my block machine powered by diesel it is helping in setting up a hotel . Dear local investors with funds buy our machines and develope your home areas .

[Jim Spire Ssentongo @SpireJim]

I’m aware of evil plans aimed at me. Well, I’ve made my humble contribution. I hope this country traces its soul. I hope a time comes when we ask ourselves: Is this the best we can be? I leave now, but: SILENCE ALL ALARM BIRDS, SNAKES WILL COME IN SILENCE.

It was a pleasure.

[KAJ BUILD @KajBuild]

@wekesa_amos Construction contractor.. Our experienced team gives you a peace of mind your dream home is being built by the right hands.

[Jim Spire Ssentongo @SpireJim]

Trying out ‘Great Zimbabwe ruins’ rock fixing technique (without cement/mortar)… Less cost, less energy, time saving, brain-engaging, fun, strong!

[KAJ BUILD @KajBuild]

@AKasingye Regrettable Afande, a few crooks failing our profession..

[Musiime Anold @anold2017]

We do Architectural designs,renders and project management…Call us on 0704761457/0784664540

[KAJ BUILD @KajBuild]

@wekesa_amos Building contractor in custom homes and semi-commercial buildings. For mansonry, electrical and mechanical works. Tel: [phone]

[Canary Mugume @CanaryMugume]

Today @nssfug unveils the Solana Lifestyle & Residences, a self-sustaining satellite city located in Lubowa. After competition, this will be the largest project in East Africa, comprising of 2,750 residences; apartments, townhouses, bungalows, and villas. #SolanaLifestyle

[KAJ BUILD @KajBuild]

Our experienced team ensure quality workmanship, giving the peace of mind knowing your home is being built by the right hands #buildyourdreamhome