How To Calculate Quantity Of Cement, Fine Aggregate And Coarse Aggregate - Properties - Nairaland
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| How To Calculate Quantity Of Cement, Fine Aggregate And Coarse Aggregate by jelilololade: 12:58pm On Apr 30, 2017 |
Firstly, you need to determine the volume of space to be filled with concrete (wet volume of concrete), by using the product of the length (L), breadth (B) and width of the space (W). VOLUME = L x B x W Also, a suitable mix ratio is selected; preferably 1:2:4 (M15). Let assume the space to be a slab of 10m by 5m by 0.15m OR 33ft by 16.5ft by 0.5ft VOLUME = 10m x 5m x 0.15 = 7.5 m3 (cubic meter of wet concrete) Note; Volume of dry concrete = 1.54 x Volume of wet concrete. In other words, multiply the volume to be filled with concrete by 1.54; this caters for shrinkage and bleeding of concrete Volume of dry concrete = 1.54 x 7.5m3 = 11.55m3 Using a mix ratio of 1:2:4(M15) Volume of cement = 1/7 x 11.55m3 = 1.643m3 Bags of cement required = (1.643)/(0.035) = 46.9m3 ≅ 47 bags of cement. Volume of sand = 2/7 x 11.55m3 = 3.268m3 Tonne of sand = 3.268m3 x 1.7 = 5.55 ≅ 6 tonne Volume of Granite/Gravel = 4/7 x 11.5m3 = 6.57m3 Tonne of Granite = 6.57 x 2.4 = 15.77 ≅ 16 tonne 4 Likes 3 Shares |
| Re: How To Calculate Quantity Of Cement, Fine Aggregate And Coarse Aggregate by SuperSuave(m): 1:29pm On Apr 30, 2017 |
Civil leads!! 1 Like |
| Re: How To Calculate Quantity Of Cement, Fine Aggregate And Coarse Aggregate by jelilololade: 2:39pm On Apr 30, 2017 |
its also important to add up extra 10%, as wastage can only be reduced and not prevented |
| Re: How To Calculate Quantity Of Cement, Fine Aggregate And Coarse Aggregate by DreamShelter(m): 9:44am On May 07, 2017 |
Soo simplified, I love that, keep it up co-engineer 1 Like |
| Re: How To Calculate Quantity Of Cement, Fine Aggregate And Coarse Aggregate by Sheego92: 10:45am On Feb 04, 2019 |
how did you get 1.7 and 2.4 you used for sand and aggregate sir 2 Likes |
| Re: How To Calculate Quantity Of Cement, Fine Aggregate And Coarse Aggregate by ArcToyin(m): 11:08am On Jan 15, 2020 |
Sheego92: Am about asking same question. |
| Re: How To Calculate Quantity Of Cement, Fine Aggregate And Coarse Aggregate by ennydollar15(m): 7:22pm On Apr 07, 2020 |
Sheego92: Density of granite and sand,..it suppose to be 2.75 for granite and 1.6 for sand. What he did was: D=m/v he tried to get the quantities of granite and sand in kilograms / tonnes. I.e. m = Dxv (calculated) |
| Re: How To Calculate Quantity Of Cement, Fine Aggregate And Coarse Aggregate by MexManuel(m): 12:21am On Feb 02, 2021 |
Thank you, really insightful. |
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