The Introduction for your paper should answer the question “What do we already know and why did we ask what we did?”.
Think of the Introduction section as telling what you are studying and how you chose your topic of investigation. The topics you should consider including are: the chemistry of concrete, any pertinent chemical reactions, solutions, colligative properties, properties of acids and bases, properties of salts and how salts interact with concrete. You will also include cited information/background research that led to or provides more insight into your investigation.
To get started finding a research article to supplement your Introduction, search the databases below using keywords for your topic.