# What is The Density of Cement?

Are you looking at cement density kg/m3 here? So, you are in the right place to know. The cement density is 1440 kg/m3. However, the density of cement is a significant attribute that is essential for the construction business.

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Moreover, cement is an essential component of concrete known for its ability to bind materials together. It is imperative to understand and control **cement density** to achieve the required structural integrity and durability of construction projects.

**What is cement?**

Cement is a powdery substance formed by calcining **limestone and clay**. Which binds aggregates together, sets, and hardens.

**Composition of Cement:**

**Raw material:**

Lime | 60-65% |

Silica | 17-25% |

Alumina | 3.5-6% |

Iron Oxide | 0.5-6% |

Magnesium Oxide | 0.5-4% |

Sulfur trioxide | 1-2% |

Alkalis | 0.5-1.3% |

Gypsum | 0-2% |

**Compound of cement:**

- Tricalcium SILICATE(C3S)

i.e. 3CaO.SiO2

- Dicalcium Silicate(C2S)

i.e. 2CaO.SiO2

- Tri-calcium Aluminate(C3A)

i.e. 3CaO.A12O3

- Tetra-calcium alumino ferrite(C4AF)

i.e. 3CaO.AI203.Fe2O3

**What is the Bulk density of cement?**

The mass of the entire concrete mixture per unit volume is referred to as the bulk density of concrete. Approximately 3.15 is the specific gravity and 1440 is the **bulk density** of cement kg m3.

**Formula:**

**Bulk Density(ρ)**= Total Volume of Concrete/Total Mass of Concrete

**Key Points: **

**Bulk Density**= Mass, if the volume is a unit**Unit:**kg/m^{3}or lb/ft^{3}lb/ft^{3}**Definition:**The volume contains both the concrete and the voids.**Standard Test Method**: ASTM C138 / C138M (AASHTO T 121M/T 121).

**How do you calculate the density of cement?**

As we know:

Weight of 1 bag of cement=50kg

The volume of 1 bag of cement is=0.0347m^{3}

**Density**=Mass/Volume

=50kg/0.0347m^{3}

=1440 kg/m^{3}

Hence, the density of cement kg/m3 is 1440.

**Density of cement in different Units:**

Units | Density |

Kilogram per meter cube | 1440 kg/m^{3} |

Gram per meter cube | 1.440g/cm^{3} |

Pound per cubic feet | 90lb/cf^{3} |

Kilonewton per meter cube | 14.40KN/m^{3} |

**Cement Bulk Density as Per IS 875**

Cement Types | Density in Kg/m3 | Density in KN/m3 |

Lime Mortar | 1600-1840 | 16-18 |

Ordinary Cement | 1440 | 14.4 |

PCC (Plain Cement Concrete) | 2400 | 24 |

Pitch | 1010 | 10.1 |

**Frequently Asked Questions: **

**Q. What is the mass density of cement in kg/m3?**

The average density of cement is 1440 kg /m3.

**Q. Why is the density of cement = 1440 or 3150?**

Density is used for determining how much cement will be required for a specific building project. The weight of one kilogram of cement, or 1440 or 3150, is the equivalent of KG. It just makes it possible to determine cement’s weight by measuring its volume.

**Q. What is the mass density of PCC?**

The PCC density is 2400 kg/m3 (2.400 g/cm3 or 24 kN/m3 ).

**Wrapping Up: **

Achieving the best **potential construction** results demands an understanding of cement density. It plays an essential part in defining the concrete structures. Also, the structure’s overall performance, strength, and life expectancy.

However, construction professionals can customize cement mixtures according to the requirements of the project. Moreover, they ensure the longevity and safety of the built environment by paying particular attention to the composition, fineness, and water-to-cement ratio.