Cement and concrete, Science

Assignment Help:

Cement and concrete

Secure a small bag of Portland cement. Have the pupils mix it with water and put it in tin can covers, paper cups, or small pasteboard boxes unless it hardens. Study its appearance and its properties. Break a piece of cement and study it. Mix the dry cement with about twice as much sand or gravel. This will form concrete. After adding water and mixing thoroughly place it in moulds. Permit these to arden various days. Again study the appearance and the characteristics of these samples.

 


Related Discussions:- Cement and concrete

Explain the glomerulus - structures of a nephron, Explain the Glomerulus: S...

Explain the Glomerulus: Structures of a Nephron Glomerulus: It is the main filter of the nephron and lies within the Bowman's capsule. It resembles a twisted mass of tiny tubes

Explain the medulla oblongata, Explain the Medulla Oblongata The medull...

Explain the Medulla Oblongata The medulla extends from the pons above and is continuous with the spinal cord below as can be seen in Figure. It is about 2.5 cm long shaped like

STRUCTURE OF LEAF, #2 DESCRIBE THE APPEARANCE OF THE STOMATE AND THE GUARD ...

#2 DESCRIBE THE APPEARANCE OF THE STOMATE AND THE GUARD CELLS.

Define caecum - part of large intestine, Define Caecum - Part of Large Inte...

Define Caecum - Part of Large Intestine This is the first part of the colon. Ileocolic valve opens from the ileum on the medial aspect of the caecum. The vermiform appendix is

What is decarboxylation reaction and biogenic amines, What is Decarboxylati...

What is Decarboxylation Reaction and Biogenic Amines What are biogenic amines? Any of a group of naturally occurring, biologically active amines, such as norepinephrine, histam

Electricity, why do we get shock when we touch an open wire?

why do we get shock when we touch an open wire?

Data miniing, What are the major challenges of mining a huge amount of data...

What are the major challenges of mining a huge amount of data (e.g., billions of tuples) in comparison with mining a small amount of data (e.g., data set of a few hundred tuple)?

Explain the transport properties of loop of henle, Explain the Transport pr...

Explain the Transport properties of Loop of Henle The loop of Henle, as shown in Figure, has a descending limb and an ascending limb. As the filtrate moves down the loop of Hen

Explain the olfactory receptors, Explain the Olfactory receptors In the...

Explain the Olfactory receptors In the section on taste receptors earlier, we learnt that there is a regional distribution of taste buds for primary taste sensations like sweet

Recall of intricate details, The three clinical nurse consultants working i...

The three clinical nurse consultants working in gastrointestinal surgery received 14 face-to-face hours of research training, including instruction in qualitative interview techniq

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd