43. 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. 

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

Write at least 150 words.

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. 

Sample Answer 1

Band 8.5

 The diagram illustrates the stages and equipment involved in the production of cement and concrete. The cement production process consists of four main steps, while the concrete production process involves only one step.

The first step in cement production is to crush limestone and clay into a powder using a crusher. Then, the powder is mixed and heated in a rotating heater, where it undergoes a chemical transformation. Next, the fine mixture is ground into cement using a grinder. Finally, the cement is packed in bags and ready for use.

The concrete production process is simpler and requires only a concrete mixer. In the mixer, cement, water, sand, and gravel are combined in specific proportions: 15% cement, 10% water, 25% sand, and 50% gravel. Gravel is defined as small stones in the diagram. The resulting mixture is concrete, which can be used for various construction 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. 

Sample Answer 2

Band 8.5

The diagram depicts the processes of cement and concrete production. There are four main stages in the cement production process, starting from the raw materials and ending with the finished product. The concrete production process, on the other hand, involves only one stage of mixing different materials.

In the first stage of cement production, limestone and clay are fed into a crusher, where they are crushed into a powder. This powder is then transferred to a mixer, where it is blended. The second stage involves heating the powder in a rotating heater, where it becomes a fine mixture. The third stage is to grind the mixture into cement using a grinder. The final stage is to pack the cement in bags and store it for future use.

The concrete production process is much simpler and faster than the cement production process. It requires a concrete mixer, where four different materials are mixed together: cement, water, sand, and gravel. The diagram specifies the proportions of each material: 15% cement, 10% water, 25% sand, and 50% gravel. The diagram also clarifies that gravel consists of small stones. The outcome of the mixing process is concrete, which is widely used in construction.