Cement Manufacturing

Have you ever wondered how does the buildings around you and the pavement you walk across hold together? This webquest is made so you could find an insight of the cement production. It was made as a homework for my chemistry teacher at the Riga English Grammar School.

A cement is a binder, a substance used in construction that sets, hardens and adheres to other materials, binding them together. During this webquest you will watch a video covering the basics of cement manufacturing. The task given to you will be in a format of questions. At the end of this webquest you will have the answers to your task. Best of luck to you!

https://www.youtube.com/watch?v=n-Pr1KTVSXo this will be the video for your task.

You can work alone or in pairs. Watch the given video and pay attention to the details.

https://www.youtube.com/watch?v=n-Pr1KTVSXo

After watching the video, answer the given questions at the Process section. Write your answers on a sheet of paper. You can watch the video a second time if you missed anything. When you're done, check your answers from the Evaluation page. If you have 6 out of 10 correct answers, then you have passed the test.

Answer these questions:

1. Whats the minimum distance of the blast radius?
2. What is used so the dust wouldn't billow up?
3. Name the added extra minerals.
4. In what kind of substance everything is grinded together?
5. What's the temperture of the substance when it's entering the pre-heater?
6. How many times hotter does the substance get after 40 seconds of entering the pre-heater?
7. What is the most importrant element in cement?
8. What's the temperature inside the rotary kiln?
9. How is the substance called that leaves the rotary kiln?
10. What does the gypsum do to the cement?

Check your answers:

1. 50 metres.
2. Water.
3. Silica, iron, aluminium oxide, gypsum.
4. Powder.
5. 80 degrees celcius.
6. More than 10 times.
7. Lime.
8. 1600-1700 degrees celsius.
9. Clinker.
10. Delays it's setting time.

Thank you for using my webquest as a learning material! I hope that you have gained a brief insight in cement manufacturing. Cement is truly the thing that holds our modern world together.

Now grade yourself! If you have passed the test successfully, you will be able to use this newly acquired knowlede in your future tasks or school tests. 

I recommend using this webquest as a lesson material for chemistry or physics lessons. It is not made by a professional, so it should be used only for a training purpose and consulted with a teacher.

For further learning look for information under ''Chemical and Environmental Technologies''.

This learning material is taken from www.youtube.com and Discovery Channels show How It's Made.

Made by a grade 12 student.