# Concrete Mix Design

By [asankadilushan.eth](https://paragraph.com/@asankadilushan) · 2022-11-30

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**What is Concrete Mix Design?**

Concrete is a very complex material. Its properties as fresh as well hardened concrete is a function of right mix of constituents of concrete , which if not done properly will adversely affect the properties of concrete. Hence right judicious proportion of all the constituents is most important.

**Grade 5 Concrete Mix Design**

Cement : Sand : Aggregates - 1:5:10

**Grade 7.5 Concrete Mix Design**

Cement : Sand : Aggregates - 1:4:8

**Grade 10 Concrete Mix Design**

Cement : Sand : Aggregates - 1:3:6

**Grade 15 Concrete Mix Design**

Cement : Sand : Aggregates - 1:2:4

**Grade 20 Concrete Mix Design**

Cement : Sand : Aggregates - 1:1.5:3

**Grade 25 Concrete Mix Design**

Cement : Sand : Aggregates - 1:1:2

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*Originally published on [asankadilushan.eth](https://paragraph.com/@asankadilushan/concrete-mix-design)*