Construction Material: Cement Quality Check ka sahi tareeka (Field + Lab Guide) 🧱

Cement construction ka sabse important material hai. Agar cement ki quality kharab ho, toh poori structure ki strength compromise ho sakti hai.

Is article mein hum seekhenge ki cement ko site par aur lab mein kaise check kiya jata hai.

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1. Manufacturing Date Check (Fresh Cement)

Cement hamesha fresh hona chahiye.

• Bag par manufacturing date check karein
• 3 mahine se purana cement avoid karein

Reason: Cement time ke saath apni strength lose karta hai.

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2. Color Test (Visual Check)

Achha cement ka color greenish grey hota hai.

• Lumps (gathhe) nahi hone chahiye
• Hand feel smooth hona chahiye

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3. Hand Test (Field Method)

• Cement ko haath mein lekar rub karein
• Smooth feel hona chahiye
• Cooling sensation aani chahiye

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4. Water Float Test

Ek bucket mein paani lein aur cement daalein:

• Cement turant sink hona chahiye
• Agar upar tairta hai, quality weak ho sakti hai

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5. Initial & Final Setting Time (Lab Test)

• Initial Setting Time ≥ 30 minutes
• Final Setting Time ≤ 600 minutes

Test Tool: Vicat Apparatus

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6. Compressive Strength Test

Cement ki strength cube test se check hoti hai:

• 3, 7 aur 28 din par test hota hai
• 28-day strength sabse important hoti hai

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📊 Quick Cement Checklist

Test	Requirement
Freshness	< 3 months
Color	Greenish Grey
Initial Setting	> 30 min
Final Setting	< 600 min

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🎯 Conclusion

Cement quality check karna ek Site Engineer ki zimmedari hai. Agar cement sahi hai, toh structure strong hoga.

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💬 Aapka Sawal

Kya aap site par cement ka field test karte hain? Comment mein zaroor batayein!