A cement paste prepared with 300 gm of cement has a water cement ratio (W/C) pf 0.4, what is the capillary porosity at the end of one year assuming that maximum hydration has taken place.
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Answer: 0
Explanation:
As we know that if complete hydration take place means all of capillary water space are filled with the hydrated cement product. For complete hydration it requires 0.36 of w/c ratio. After complete hydration there is no capillary pores.
As ask In question w/c is 0.4 and complete hydration takes place it means there is a no capillary pores.
-Firoj Sayyad
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Nowadays, the mass of water and cement in an appropriate proportion is a very fundamental principle.
Explanation:
- The hardening of cement is a very important parameter that isn obtained by the correct ratio of water to cement.
- "Capillary porosity" i.e. the space in cement mixture is very helpful in building the strength and durability of the paste.
- The desirable value of porosity is 0.3 and 0.4.
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