Detailed Estimation---2

Building partition with bricks: ب اُء انقواطع بانطابوق
a- Thickness of wall = 12.5 cm
The dimensions of appeared side of brick = 0.085 X 0.25 cm
Number of bricks / m2 = 1/(0.085*0.25) ? 47 brick
b- Thickness of wall = 8.5 cm
The dimensions of appeared side of brick = 0.125 X 0.25 cm
Number of bricks / m2 = 1/(0.125*0.25) = 32 brick
Building ceilings with bricks بناء السقوف بالطابوق )العقادة(
The dimensions of appeared side of brick = 0.085 X 0.25 cm
Number of bricks / m2 = 1/(0.085*0.25) ? 47 brick
2- Volume of mortar in 1m3 of building with bricks
حجى ان وً تَ في 1 يخر يكعب ي انب اُء بانطابوق
Volume of brick before building = 0.24*0.075*0.115= 0.00207 m3
Volume of bricks without mortar in 1 m3 of building = 378 *0.00207= 0.78246 m3
Volume of mortar = 1 – 0.78246 ? 0.22 m3
From above information: 1 m3 of building with bricks contains 0.78 m3 of bricks and 0.22 m3 of mortar.
What are the quantities of cement and sand in 0.22 m3?
For x (cement): y (sand) mixing ratio
The mixing losses 1/4 of its volume so the formula will be:
V = 0.75 ( x + y)
V= volume of mixing
For example: if the mixing ratio is 1:3 ? y = 3 x
V= 0.75* (x+ y) = 0.75 * ( x + 3 x) = 0.75 * (4 x) = 3 x
If v= 0.22 then x= 0.22/3 = 0.0733 m3 y= 0.22 m3
The density of cement is about 1400 kg/ m3 so the weight of cement can be determined:
W = 1400 * 0.0733 = 102.62 kg (usually the standard bag of cement contains 50 kg ) ? number of bags needed is 102.62/50 = 2.05 ? 2 bag
For 1 m3 building with bricks we need two bags of cement and 0.22 m3 of sand.
?نكم يخر يكعب ي انب اُء بانطابوق حَخاج 2 كيس ي انس جًُ و 2222 يخر يكعب
ي انريم
3- Estimate of plastering with cement and sand mixing:
بخهيط انس جًُ و انريم حخ يً انهبخ
Plastering thickness is usually ( 1- 2) cm , mixing ratio 1:3
For 1 m2 plastering (2 cm in thickness), Volume = 1* 1* 0.02 = 0.02 m2
V= 0.75(x+y) ? 0.02= 0.75 (1x+3x) x= 0.02/3 = 0.0067
Weight of cement = 0.0067 * 1400 = 9.38 kg
Sand volume = 3 * 0.0067 = 0.02 m3
4- Estimate of cement, sand, and gravel quantities in concrete works:
حخ يً ك يًاث انس جًُ, انريم ,انحصى في اع اًل انخرسا تَ
Concrete contains (cement, sand, gravel, and water)