Learn how to calculate the right proportions of cement, water, and aggregate to achieve your target strength of concrete

CONCRETE MIX DESIGN

What you’ll learn

- Introduction to Concrete Technology.
- What Is Concrete Mix Design?.
- How to design Concrete Grade C30.
- What are the requirements of concrete mix design?.
- How is concrete mix design calculated?.
- How to determining Water-Cement ratio.
- How to determine the Cement Content for Mix.
- How to determine the aggregate contents.

Course Content

- Course Overview –> 1 lecture • 10min.
- Introduction to Concrete Mix design –> 2 lectures • 17min.
- Design Concrete Grade C30 Using (DOE – British) Method –> 8 lectures • 49min.

Requirements

**CONCRETE MIX DESIGN**

Concrete mix design is **the process of finding the right proportions of cement, sand, and aggregates for concrete to achieve target strength in structures**.

- Mix Design is the science of determining the relative proportions of the ingredients of concrete to achieve the desired properties in the most economical way
- Concrete mix design is the process of finding the right proportions of cement, sand, and aggregates for concrete to achieve target strength in structures.

**BS – CONCRETE MIX DESIGN (DOE)**

**DOE METHOD OF CONCRETE MIX DESIGN:**

The British method of concrete mix design, popularly referred to as the “DOE method”, is used in the United Kingdom and other parts of the world and has a long-established record.

The DOE method of mix design is applicable to all types of concrete mixes. The method originates from the “Road Note No 4” which was published in Great Britain in 1950. In 1975 the note was replaced by the “Design of Normal Concrete Mixes”, published by the British Department of the Environment (DOE). In 1988 the “Design of Normal Concrete Mixes” was issued in a revised and updated edition to allow for changes in various British Standards.

**DOE mix design generally involves the following stages.**

**Step 1: **Determine the target mean strength

**Step 2: **Determine the water/cement ratio

**Step 3: **Determine the water content

**Step 4: **Determine the cement content

**Step 5: **Determine the total aggregate content

**Step 6: **Determine the fine aggregate content

**Step 7: **Determine the mix proportion of the concrete mix for a given volume