**Step 1:- Assumptions**

Volume of mortar= 1 m³

Mix Ratio –> 1:6

**Step 2:- Volume of Plaster**

**Dry volume of mortar = Wet volume x 1.33**

∴ Dry Volume = 1.0 m³x 1.33 = 1.33 m³

**Step 3:- Quantity of Cement**

**Quantity of Cement = {(Dry Volume of mortar x Cement ratio) / (Sum of the ratio)}**

∴Quantity of cement = (1.33 x 1) /(1+6)=0.19 m³

** ****Density of Cement = 1440 kg/m****³**

∴ Weight of Cement = 1440 x 0.19 = 273.6 Kg

**1 bag of cement contains 50 kg of cement **

∴ Number of bags = 273.6 Kg/50 = 5.472 No’s

**Step 4:- Quantity of Sand**

** Cement : Sand :: 1:6**

**Quantity of Sand = Quantity of Cement x 6**

∴ Quantity of Sand = 0.19 m³ x6= 1.14 m³

**1m³=35.3147 ****Cubic Feet (CFT)**

∴ Quantity of sand = 1.14 x 35.3147 = 40.258 CFT

**Density of sand = 1920 kg/m³**

∴ Weight of the sand= 1.14m³x1920kg/m³= 2380.8 kg =>2.3808 tonnes

#### Step 5:- Cost calculation

**i) Material Cost:**

Material for one cu. m. |
Quantity |
rate |
per |
Amount |

Cement | 5.472 bags | Rs. 350 | bag | Rs. 1915.2 |

Sand | 1.14 m³ | Rs. 1350 | m³ | Rs. 1539 |

Total | Rs. 3454.2 |

**ii) Labour ****Cost:**

Labours for 1m³ |
No’s |
Wages/day |
Amount |

Mazdoor | 0.75 | Rs. 500 | Rs. 375 |

Bhisti | 0.07 | Rs. 400 | Rs. 28 |

Rs. 403 |

**Summary:**

Cost of material = Rs. 3454.2

Cost of labours = Rs. 403

Sum of labour & material cost= **Rs****. 3857.2**

**Add:**

1.Water charge **@ 1.5% **= (1.5/100)x3857.2 = **Rs****. 57.858**

2.Contractor’s profit **@10 % **= (10/100)x3857.2= **Rs****. 385.72**

**Total cost = 3857.2 + ****57.858 ****+385.72= ****Rs****. 4300.778**

**Watch the video in the below link for better understanding and detailed explanation.**

RATE ANALYSISI OF CEMENT MORTAR

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