IELTS Writing Cement & Concrete Production - Describing a Process

Cambridge IELTS 8 Practice Tests Academic Writing Test 3 Sample Task 1 Answer

Writing Task 1

You should spend about 20 minutes on this task.

The diagram below shows the stages and equipment used in the cement-making process, and how cement is used to produce concrete for building purposes.

Summarise the information by selecting and reporting the main features and make comparisons where relevant.

Write at least 150 words

IELTS Task 1 Sample Answer | Describing Cement & Concrete Production

The process of producing concrete for construction purposes begins with making cement. The first step is the mixing together of limestone and clay which is then crushed by a special machine which produces a fine powder as a result. This then passes through a mixer and a heating tube which rotates as the powder passes through it. This powder is then processed by a grinder which emits very fine powdered cement; it is then bagged.

Concrete is made from a mixture of this fine cement, water, sand and gravel in the ratio of 15%, 10%, 25% and 50% respectively. This combination is mixed together in a concrete mixer and the final product is concrete ready to use in construction.

Cement production requires fewer ingredients than concrete, but more equipment and there are various different stages to the process whereas concrete is a simpler process involving only the mixing of cement with three other elements.