1000 sq ft concrete rcc slab cost in india and **calculate quantity of sariya, sand ,cement and aggregate in roof slab**

● **Description:**-1000 sq ft concrete slab cost in india and rcc.construction cost of RCC slab for 1000 square feet and 1000 sq ft concrete slab cost in india and for the roof cast of 1000 square feet building roof slab, you have require Steel bar ,sand, cement and aggregate.

how we calculate quantity of cement, sand, Steel bar and aggregate required ,you know that for the casting of roof slab we used M20 mix concrete.1000 sq ft concrete slab cost in india and rcc

Roof slab |

**What is M20 mix grade of Concrete**

In M20 mix concrete M is stand for mix and numerical figure 20 is stand for characteristic of compressive strength 20N/mm2 after mixing and casting of roof slab, quantity of material in slab formation it calculated by M20 mix in which ratio of sand cement and aggregate is 1: 1.5 :3

**●M-mix Ratio** :-1 : 1.5 : 3 in which one part is cement 1. 5 part is sand and 3 part is aggregate

**Steel required for 1000 sq ft slab**

● **Steel bar calculation**:- In roof slab reinforcement we provide there is a two types of Steel bar used main bar and cross bar. And know about roof slab Steel calculation

1) **Main bar:-** main bar is also called as shortist span bar usually used at bottom of slab having spacing 4 inch between the two bar. Main bar is also called tension Steel because it is provided in tension zone of roof slab in bottom having tensile strength of steel is enough yield strength and ultimate tensile strength.

We should use hi tensile steel in main bar Fe550D. sufficient amount of main bar used in shorter direction having 10 mm or 12 mm dia of Steel bar according to roof slab reinforcement.

2) **Cross bar:-** cross bar is also called as longer span bar or distribution bar or cross bar mainly used at top of the main bar in compression zone of slab, cross bar usually dia of 8mm or 10 mm bar Steel bar used in longer direction according to roof slab reinforcement.

●How to calculate material required for roof cast of 1800 square feet building

●How to calculate material required for roof cast of 1000 square feet building

●How to calculate weight of Steel bar of different size

**What is Roof slab casting process**

Roof slab casting is process of laying And putting concrete mix in horizontal direction and structure over brickwork. Cast of roof slab reinforcement main bar and cross bar in distributed over shuttering areas of roof slab and then we put concrete mix of M20 or m25 grade of concrete that is known as roof slab casting.

### 1000 sq ft concrete slab cost in India

● **Given dimensions:-**

roof slab thickness ranging between 4 inch to 6 inch but in this calculation we take roof slab thickness is 5 inch

Roof slab thickness =5″

Length of slab =40′

Breadth of slab=25′

Area of slab =25’×40’=1000sqft

M -20 -mix =1:1.5:3 (concrete)

Roof slab |

**●Volume Calculation ( wet & dry volume)**

1) wet volume=Area × thicknessof slab

Vw= 1000 sqft× 5′

Vw= 1000sqft×5/12′

Vw =416.66 cft

If you want to convert it into cubic metre you should divide by 35.3147

1m3 =35.3147 cft

Wet volume=416.66/35.3147=11.80 m3

2) **Dry volume calculation**

we know that wet volume have voids and pore which filled with water and bubbles it can be remove by vibrator or compressor machine so more quantity of material is required.

dry volume means mixture of cement sand and aggregates concrete in dry condition have more voids and pores that are evaporated in wet condition and volume is decrease by 54 percent in wet condition and volume of dry concrete in increased by 54% , so we can multiply 1.54 in wet volume to calculate dry volume

Vd =1.54 ×11.80 m3

Dry volume=18.17 m3

**Roof slab steel calculation**

**●Weight calculation of Steel:-** quantity of steel required in roof slab is about 0.5℅ to 1% of dry volume then average is 0.75% of dry volume

Weight =0.75%of dry volume×density of steel

Density of steel is=7850 kg/m3

W =0.75/100×18.17m3 ×7850kg/m3

Weight=1070 kg=1.070 ton

So weight of Steel bar is require for 1000 square feet Roof slab= 1070kg

If Market rate of steel bar is 60 rupees per kg then

total cost of Steel bar =1070×rs 60

**Total cost= Rs 64200**

1070 Kg Steel quantity required for 1000 square feet RCC slab in India and their construction cost is about rs rs 64200 for steel ( rebar)

**Sand required for 1000 sq ft slab **

In M20 ratio of sand cement and aggregate is 1:1.5:3 ,in this ratio 1.5 part is sand

Total proportion =1+1.5+3=5.5

Volume of sand in cft

Volume =1.5 /5.5×18.17×35.3147 cft

Volume of sand =174.80 cft

If market rate of 80 rupees per CFT then total cost of quantity of sand

**Total cost =rs80×174.80**

**=Rs 13984**

174 Cuft sand quantity is required for 1000 square feet RCC slab in India and their construction cost is about rs 13984 for sand

### Cement required for 1000 sq ft slab

**●Cement calculation:- in** M20 mix 1 part is cement quantity

Weight of cement=1/5.5×dry volume in m3×density of cement

Density of cement=1450kg/m3

Weight =1/5.5×18.17 m3×1450 kg/m3

=4750 Kg

1 bag cement =50kg

No.of bags =4750/50

=95 Bags cement

If market rate of cement is 350 rupees per bags then total cost

**Total cost =95 ×rs 350**

**= Rs 33250**

95 bags ( 4750 kg) cement is required for 1000 square feet RCC slab in India and their construction post is about rs 33250 for cement

### Aggregate required for 1000 sq ft slab

**●Aggregate Calculation:- **

**in M20** mix there is 3 part of aggregate quantity

Volume of aggregate=3/5.5×dry volume in CFT

Volume =3/5.5×18.17×35.3147 cft

Volume =349.60 cft

If market rate of aggregate is is 70 rupees per CFT then total cost of aggregate

**Total cost =rs 70×349.60**

**Rs=rs 24472**

349.60 Cuft of aggregate quantity is required for 1000 square feet RCC slab in India and their construction cost is about rs 24472 for aggregate

**Construction cost of 1000 sq ft rcc slab**

● **total cost of material:-**

Cost of steel=rs 64200

Cost of cement=rs 33250

Cost of sand=rs 13984

Cost of stone=rs 24472

Labour charge and machine cost =rs 50000 (approx)

Total cost=Rs 184906

1070 kg steel, 95 bags ( 4750 kg) cement, 174.80 cuft sand and 349.60 Cuft aggregate are required for roof casting of 1000 sq ft rcc concrete slab in India and their construction cost is about is rs 184906

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