Bài viết mẫu IELTS writing task 1
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.
Sample Answer 1:
The given diagram shows the process of cement production and then how this cement is used for concrete production. As is observed from the graph, cement production involves some complex processes and concrete production is done using the water, cement and sand in a concrete mixer.
The first diagram depicts that, to produce cement first the limestone and clay are crushed and the produced powder from this is passed through a mixer. The power is then passed via a rotating heater where heat is supplied constantly and this process creates the raw cement materials which is passed on a grinder machine to finally produce the cement. The cement is then packed and marketed for sell.
The second diagram presents how the concrete is produced for housing and building work. In the first stage, 15% cement, 10% water, 25% sand and 50% small stones are mixed in a concrete mixer machine and the machine rotates fast to have the ingredients mixed together to create the concrete.
Sample Answer 2:
The two diagrams illustrate the cement-making process. We can see from the given illustration that cement is manufactured first, and then it’s used in the concrete production.
In the first diagram, we can see that limestone is the raw material with which clay added. Firstly, the two materials are crushed to form the powder. Then this powder passes through a mixer and a heater through which the powder is exposed to flame. The powder now is in the form of paste. This paste is grinded to be cement to pass through the last process; packing in bags.
The second diagram shows that cement can be used to produce concrete. This process is simpler than cement production; concrete is a mixture of: 15% cement, 10 % water, 25% sand and 50 % small stones which is named as “Gravel”. The four elements are poured in a huge mixer which rotates producing concrete. We can see that once the cement is produced after several steps and equipment, it can be used in other less complicated processes, for instance, concrete production.