Question
Download Solution PDFThe specific gravity of particles of ordinary Portland cement is about ________
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Absolute density of different concrete materials are as follows:
|
Materials |
Absolute Density (kg/m3) |
|
Water |
1000 |
|
Fine Aggregate |
2650 |
|
Coarse Aggregate |
2550 |
|
Cement |
3150 |
Following are parameters and properties of cement:
1. Bulk density of cement = 1440 kg/m3
2. Specific gravity of cement = 3.15
3. Weight of one bag of cement = 50 kg
4. Volume of cement bag = 50/1440 = 0.035 m3
5. Number of cement bags in 1 m3 = 30 approx.
6. Volume of dry mortar is 30% more than volume of wet mortar.
∴ Volume of dry mortar = 1.3 × volume of wet mortar
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