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.
As is observed from the two given pictures, the first one illustrates how cement was produced, while the latter one describes the process of making concrete.
Overall, there are visibly 5 steps in cement production, beginning with crushing the raw ingredients and ending with packing. Meanwhile, producing concrete merely comprises mixing 4 different materials.
At the beginning of the cement-making process, limestone and clay are crushed together in order to form a powder. Subsequently, this combination is put into a mixer before passing a rotating heater, at which point heat is supplied constantly and raw cement will be ground by means of the grinder. Eventually, cement is produced, which is followed by being packaged and marketed for sale.
Shifting to concrete, it is made by combining cement, water, sand, and gravel in a plausible ratio. To be exact, concrete consists of 50% of small stones, 25% of sand, 15% of cement and 10% of water. After that, the mixture is blended together in a concrete mixture to ensure that the chemical reaction reacts completely so as to obtain the desired concrete for usage.
- The graph below shows the consumption of fish and some different kinds of meat in a European country between 1979 and 2004 Summarise the information by selecting and reporting the main features and make comparisons where relevant
- In some countries an increasing number of people are suffering from health problems as a result of eating too much fast food It is therefore necessary for governments to impose a higher tax on this kind of food 89
- Some people get into debt by buying things they don t need and can t afford What are the reasons for this behavior What action can be taken to prevent people from having this problem 89
- The graph and table below show the average monthly temperatures and the average number of hours of sunshine per year in three major cities Summarize the information by selecting and reporting the main features and make comparisons where relevant 73
- The three pie charts below show the changes in annual spending by a particular UK school in 1981 1991 and 2001 Summarise the information by selecting and reporting the main features and make comparisons where relevant 84