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 maps below show the village of Stokeford in 1930 and 2010 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
- 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 chart below gives information about Scotland s main exports in 2000 20 and future projections for 2025 Summarize the information by selecting and reporting the main features and make comparisons where relevant