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Cement me jb panj add krte he to usme reaction hoti he heat of hydration process... To waha cement ke bogus compound React krte he C2S aur C3S... kuch is tarah reaction hoti he - C2S/C3S + H2O ----> C-S-H (Gel)(80-85%) + CH(Cacium Hydroxide)(10-15%)... to jo Calcium hydroxide hota he10-15 % wo alkali or sulphate wagairah se reaction kr jata he to concrete ko nuksan hota he usse ..calcium hydroxide reactive hota he to ham fly ash add krte he us reaction ko rokne ke liye fly ash jo bhatti se aati he 1200-1400°C pr heated ho kr aati he to wo fly ash v reactive hoti he jo ki silica aur alumina ki trh react krti he... tb use cement me add krte he to wo calcium hydroxide se react kr strength provide krti he... hope samjha paya hun..??
Sir , kya aap ne question puchha wah Site Engineer ke sahi hai": fly ash cement used in mix": puchha rahe hai sahi hai aap ke hisab se. Aap ne jo puchha wah Site per forman bhee janta hai pheer bhee wah Engineer nehi kahata hai kyo ki paisa dena pad Sakatha hai. pahale ke raj मिस्त्री ke barabar Engineer nahi hai उन्हें engaging बुलाने ke badale मिस्त्री bolati hai. Puchhane ki koi limit nahi hai ,limit se jada puchhe lekin payment ki bata karo to it my limit management ki bat aa jayegi. 12 hours kam करवाएं ja raha hai pheer bhee staff ka efforts kam hai. Aaj kal Site per Engineer ke liye kam karane ke liye raha hi nahi hai. bahut sare Site hai jaha Engineer hai hi nahi to kya bolege Guru jee.
@@ViralVellapanti abe bhai tu konse jmane mein hai engineer banna ka liya interview english mein hota hai hindi mein kon interview lera professional to koi ni lega hindi mein
@@yashupadhyay6010 bhai maine v interview diye...shuru me 1 min English then Hindi hi chlta hai.. btw here I m working in NCC currently and isme bhi aisa hi tha..ACC cement me diya tha waha bhi aisa hi tha...but if u comfortable in English then sure you can. Hinglish is best in my opinion.
