FOTOLIA
The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the Highers/Advanced Highers exam specifications.
The brittleness of concrete is a drawback for the construction industry, but chemists and biologists are working to solve this problem. Improvements in concrete composition will have a positive environmental impact, as it will lead to reductions in concrete manufacture and hence a lowering of the emission of carbon dioxide (a greenhouse gas).
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