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 quantities of goods transported in the UK between 1974 and 2002 by four different modes of transport Summarise the information by selecting and reporting the main features and make comparisons where relevant
- 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
- Increasing the price of petrol is the best way to solve growing traffic and pollution problems To what extent do you agree or disagree with the above statement What other measures do you think might be effective Give reasons for your answer and include an 89
- 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
- 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