How does cement harden?
When cement is mixed with water it hardens. This is probably due to a complicated chemical reaction between the compounds in the cement and water. There are four main compounds in cement. These are believed to become crystals with the addition of water. When the crystals interlock, cement hardens.
Related posts:
What is Stonehenge famous for?Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 1...
General Knowledge
What is a Plimsoll line? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11...
General Knowledge
Why is America called Uncle Sam? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9...
General Knowledge
Why does a top spin? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and...
General Knowledge
GK Question "How The Earthquakes Are Recorded On A Seismograph?" general knowledge book English 2021...
General Knowledge
Why are even-numbered pages always on the left? Complete General Knowledge Question and Answer for C...
General Knowledge
What is blood pressure? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 ...
General Knowledge
Why do parts of our body fall asleep?Complete General Knowledge Question and Answer for Class 6, 7, ...
General Knowledge
Do you know “Bhimbetka, the earliest known gallery of cave paintings, in India”.
Do you know
GK Question "What Do You Know About Fossils?" general knowledge book English 2021 current affairs qu...
General Knowledge
When did fish develop? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 a...
General Knowledge
What is hoof-and-mouth disease? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9,...
General Knowledge
What causes snow avalanches? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10...
General Knowledge
Why is America called Uncle Sam? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9...
General Knowledge
Do you know “The shastra to use astras”.
Do you know
What is Wall Street? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and...
General Knowledge
Why do tidal waves occur? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 1...
General Knowledge
Which snake writes in the sand? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9,...
General Knowledge
What is a photoelectric cell? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 1...
General Knowledge
Where were the pyramids built? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, ...
General Knowledge
