Yahya Architect & Engineering Services

19/10/2025

I got over 10 reactions on one of my posts last week! Thanks everyone for your support! 🎉

26/09/2025

3d realistic view of building 🏫

24/09/2025

A Beautiful 5 marla House design and Resort Front that gives the realistic view, Like and Share Please,

24/08/2025

Slump Cone Test,

21/08/2025

Construction Conversation table, A handy reference for Engineers & Site Professionals

08/08/2025

🧱 Concrete Pouring and Cracks – Reasons & Solutions

✅ What is Concrete Pouring?

Concrete pouring means placing wet concrete into a form (like a slab, beam, or column) to harden and become strong.

But sometimes, cracks appear after pouring. These cracks reduce strength and look bad.

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❌ Why Cracks Appear in Concrete After Pouring?

1. Plastic Shrinkage (Surface Cracks)

When? 1–6 hours after pouring.

Why? Water from the top surface dries too fast in hot or windy weather.

Crack Look: Thin, random lines on the surface.

💡 Solution:

Keep concrete surface wet after pouring (start curing early).

Use wet cloths, water spray, or plastic sheet.

Avoid pouring in hot, dry, or windy conditions.

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2. Settlement Cracks

When? After pouring, while concrete is settling.

Why? Concrete sinks but rebar or pipes block the movement.

Crack Look: Cracks along steel bars or around columns.

💡 Solution:

Vibrate concrete properly.

Do not place concrete in very thick layers.

Arrange rebar and pipes correctly.

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3. Drying Shrinkage Cracks

When? Few days or weeks after pouring.

Why? Concrete loses moisture and shrinks.

Crack Look: Straight or irregular lines, mostly in slabs.

💡 Solution:

Do good curing (for at least 7 days).

Use less water in the mix (low water-cement ratio).

Provide expansion joints or control joints in large slabs.

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4. Too Much Water in the Mix

Why? If you add too much water, concrete becomes weak and shrinks more.

Crack Look: Random cracks and soft surface.

💡 Solution:

Use the correct water-cement ratio.

Don’t add water after mixing (on-site).

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5. Improper Curing

Why? If you don’t keep concrete moist, it dries too fast and cracks.

Crack Look: Surface becomes dry and cracked.

💡 Solution:

Start curing as soon as concrete sets (within 8–12 hours).

Use water, wet burlap, curing compounds, or plastic covers.

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6. Temperature Cracks (Thermal Cracks)

Why? Concrete heats up when it hardens, then cools and shrinks, causing cracks.

Crack Look: Deep cracks, mostly in thick sections.

💡 Solution:

Use low-heat cement in big structures.

Pour concrete at cooler times.

Use insulation or curing blankets.

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✅ Summary Table

Reason of Crack When It Happens Simple Solution

Plastic Shrinkage Few hours after pouring Early curing, avoid heat/wind
Settlement Cracks While concrete settles Proper vibration, correct rebar placing
Drying Shrinkage Few days/weeks later Proper curing, control joints
Too Much Water in Mix During mixing Use correct water-cement ratio
Improper Curing After setting Start curing early and do it properly
Temperature (Thermal) Cracks 1–2 days after pouring Use low-heat cement, control temp

24/06/2025

🔍 Understanding Cutting Length in Reinforcement Works 🔍

Here's a clear and practical guide on how to calculate the cutting length of a reinforcement bar used in an RC (Reinforced Concrete) base — essential knowledge for both site engineers and civil engineering students.

✅ Key Parameters Considered:

Clear cover

Hook length

Bar diameter

Effective base length

📐 Formula: Cutting Length = L – (2 × Clear Cover) + (2 × Hook Length)
(Hook length is typically taken as 12D, where D is the bar diameter, as per standard practice.)

🎯 Why This Matters:

Ensures accurate steel estimation

Reduces material wastage

Enhances site planning and bar bending schedule efficiency

This quick reference is a helpful reminder for professionals in the field and a valuable insight for aspiring civil engineers.

📌 Remember: Knowledge not shared is knowledge lost! 🚀

13/06/2025

Modern House Design Ideas, Modern Design
Architecture & Interior Design

13/06/2025

نقشہ کسی بھی تعمیراتی یا ترقیاتی منصوبے کی بنیاد ہوتا ہے۔ یہ ایک ایسا خاکہ ہے جو کسی عمارت، سڑک، پل، یا دیگر تعمیراتی ڈھانچے کی ساخت، پیمائش، مواد اور ڈیزائن کو واضح طور پر ظاہر کرتا ہے۔ نقشے کی مدد سے انجینئر، معمار، ٹھیکیدار، اور مزدور سب ایک ہی سمت میں کام کرتے ہیں، تاکہ تعمیر کا عمل درست، محفوظ اور مؤثر طریقے سے مکمل ہو۔

نقشہ نہ صرف کام کو منظم کرنے میں مدد دیتا ہے بلکہ اس سے وقت اور وسائل کی بچت بھی ہوتی ہے۔ بغیر نقشے کے تعمیر کرنا ایسا ہے جیسے بغیر سمت کے سفر پر نکلنا۔ اس سے نہ صرف مالی نقصان ہو سکتا ہے بلکہ انسانی جانوں کو بھی خطرہ لاحق ہو سکتا ہے۔

اس کے علاوہ، نقشہ قانونی طور پر بھی اہمیت رکھتا ہے۔ کسی بھی منصوبے کی منظوری، اجازت نامے اور مستقبل میں پیدا ہونے والے تنازعات کا حل اکثر نقشے کی بنیاد پر کیا جاتا ہے۔

نقشہ کسی بھی تعمیراتی منصوبے کی رہنمائی، منصوبہ بندی اور عملدرآمد کے لیے ریڑھ کی ہڈی کی حیثیت رکھتا ہے۔ ایک درست اور جامع نقشہ کامیاب تعمیر کی ضمانت ہوتا ہے

13/06/2025