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

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

IELTS Writing Task 1: process diagrams

The following paragraph describes the process of making cement.

At the first stage in the cement production process, limestone and clay are crushed to form a powder. This powder is then mixed and passed through a rotating heater. The resulting mixture is ground, and finally the end product, cement, is packed into large bags.

There are 2 things that make process descriptions special:

  1. Phrases that order the process and link the steps (underlined)
  2. Passive verbs (highlighted)

(See Cambridge IELTS book 8 for the full question)

1 Like

IELTS Writing Task 1: ‘cement’ diagram

Someone asked me for help with the diagram task below. I wrote one paragraph about this diagram in this lesson back in 2012, but I didn’t finish the full answer. So let’s take another look:

Of course, we’re going to describe the steps in the cement-making process and the method for making concrete.

But before doing that, we need an introduction and overview. How would you write these two paragraphs?

1 Like

IELTS Writing Task 1: diagram introduction & overview

To write an introduction about a process diagram, just paraphrase the question statement as usual.

For the overview, here are some general things that you could mention:

  • the number of stages in the process
  • where / how the process begins and ends
  • the items (e.g. materials) involved in the process

Let’s return to the ‘cement’ task and write the introduction and overview.

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

Introduction and overview:

The first diagram illustrates the process of cement manufacture, and the second diagram shows the materials that go into the production of concrete.

It is clear that there are five stages in the production of cement, beginning with the input of raw materials and ending with bags of the finished product. To produce concrete, four different materials are mixed together.

1 Like

IELTS Writing Task 1: verbs for processes

Looking at the ‘cement process’ diagram below, let’s think about the verbs that we’ll need to use. There are various options.

Let’s start with the 5 nouns that mark the 5 stages of this process:
crusher, mixer, heater, grinder, bags

We can convert these nouns into passive verb forms:

  • Limestone and clay are crushed.
  • The resulting powder is mixed.
  • It is heated.
  • Then it is ground.
  • The final product, cement, is bagged.

Or we can keep the original nouns, and use active or passive verbs:

  • Limestone and clay are placed in a crusher. (passive)
  • The resulting powder goes into a mixer. (active)
  • It then passes through a rotating heater. (active)
  • The heated mixture is put into a grinder. (passive)
  • The cement is packaged in large bags. (passive)

Of course, the best approach is to use a mix of the above options:

At the first stage in the production of cement, limestone and clay are crushed to form a powder. This powder is then mixed before it passes into a rotating heater. After heating, the resulting mixture is ground, and cement is produced, Finally, the cement is put in large bags.

The first diagram illustrates the process of cement manufacture, and the second one shows the materials that are used in concrete production.

It can be observed that there are five stages in the production of cement, beginning with the input of raw materials and ending with the packaging phase. To make concrete, four different materials are combined.

At the first stage in the production of cement, limestone and clay are passed through the crusher machine to turn into powder. Then, this powder is mixed before being placed into a rotating heater. After that, this mixture is heated and then ground to become cement. Finally, the cement is packaged in large bags.

Besides cement, there are also there raw materials that are used in the production of concrete, including gravel, water, and sand. Four those materials are blended with an exact proportion of each in a concrete mixer with 15% of cement, 50% of gravel, 10% of water, and 25% of sand.

The first diagram shows the stage of how to make cement production while the second diagram shows the percentage of ingredients to produce concrete for building purposes.

Overall, there are five steps to product Cement. Beginning with the input of raw materials and ending with bags of finished product. To mix concrete production which has 4 main ingredients with different partitions.

The first step, the raw materials is Limestone which is clawed to powder by Crusher then the powder is through a mixer machine. The mixed power will be heated and rotated by the heater. The Grinder machine will grind the output of previous steps. Finally, the Cement product is finished and is packaged after that.

In order to produce concrete for building. All ingredients include cement, water, sand, Gravel which are mixed in the Concrete mixer. The main ingredient for concrete production is Gravel which is 50% total, while water is only 10%. Finally. 15% and 25% are Cement and Sand respectively.

The first diagram illustrates the process of cement manufacture, while the second one shows how different materials go into the production of concrete used in building.

It is clearly seen that there are four stages in the making of cement, beginning with the input of raw materials and ending with bags of the finished product. To create concrete, four materials with different proportions are mixed together.

At the first stage in the production of cement, limestone and clay are crushed to form a powder. This powder is then mixed before it passes to the rotating heater. After being heated, the resulting mixture is moved to a grinder, and the cement is produced and packed after that.

In order to be used in building, cement, along with water, sand and gravel are all blended together in a rotating machine called a concrete mixer. To be specific, the proportion for these four elements is 15%, 10%, 25% and 50%, respectively.

(158 words)

2 Likes

The first diagram illustrates the process of cement manufacture, and the second diagram shows the materials that go into the production of concrete.

It is clear that there are five stages in the production of cement, beginning with the input of raw materials and ending with bags of the finished product. To produce concrete, four different materials are mixed together.

At the first stage in the production of cement, limestone and clay are crushed to form a powder. This powder is then mixed before it passes into a rotating heater. After heating, the resulting mixture is ground, and cement is produced. Finally, the cement is packaged in large bags.

Cement is one of the four raw materials that are used in the production of concrete, along with gravel, sand and water. To be exact, concrete consists of 50% gravel, 25% sand, 15% cement and 10% water. All four materials are blended together in a rotating machine called a concrete mixer.

(160 words, band 9)

1 Like

IELTS Writing Task 1: a grammar question

A student asked me about the following sentence from this lesson:

After heating, the resulting mixture is ground, and cement is produced.

The student asked why I wrote after heating instead of after being heated.

Both phrases are correct, but can anyone explain why? What is the difference, in terms of grammar, between these two alternatives?

FROM SIMON:

Lucy and sjm gave us the right answer:

‘heating’ here is a gerund (a verb being used as a noun)
‘being heated’ is using the verb form

So, “after heating” is similar (grammatically) to “after production” (after + noun).

The first diagram shows the procedure of cement-making, and the second one illustrates the materials that used to produce concrete.

It is noticeable that cement-making process contains 5 stages, beginning with the raw materials and ending with packaged cement product. To produce concrete, four distinct materials are mixed together.

The first stage of the cement production process is crushing limestone and clay into a powder. Then, this powder is mingled and passed through a rotating heater. After heating, the result from going into grinders is cement. Finally, the end product is packaged in large bags.

In the production of concrete, cement, along with gravel, sand and water are blended together into concrete mixture. To be proper, concrete is mixed with the proportion of 50% gravel, 25% sand, 15% cement and 10% water .

The first diagram demonstrates the process of the cement production, while the second diagram illustrates the materials in the production of concrete.
There are five stages in the process of cement manufacture, beginning with crushing the raw materials and ending with packaging bags of the finished products. Four raw materials are mixed together in the production of concrete.
At the first stage in the cement production, Limestone and Clay are crushed into powder. Then, this powder goes through a mixer. After mixing, the mixture is passed into a rotating heater. The mixture is then undergone a grinder. In the final stage, the cement is packaged in bags.
In the production of concrete, cement, along with gravel, sand and water is used to make concrete for building purposes. In this mixture, gravel accounted for 50%, while the figures for sand, cement and water are 25%, 15%, 10% respectively. All four raw materials are blended in a rotating machine which is called a concrete mixer.

The first diagram illustrates the way how cement is made and the second diagram shows the process of making concrete.

Overall, production of cement includes five stages, raw materials are put in crusher at first and finished product is packed in standard bag. It is clear that cement is one of four materials which produce concrete

At the first stage of the production of cement, limestone and clay are crushed into powder. This kind of powder is then mixed before it passes into a rotating heater. After being heated, cement is produced. Finally, final product is packed in standard bags.

Cement is one of raw materials that are used in the production of concrete, together with gravel, sand and water. It can be seen that concrete consists of 50% gravel, 25% sand, 15% cement and 10% water. All four materials are blended in concrete mixer and process of concrete making is finished after this process.