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 sterols, Sterols- steroids containing an alcoholic group at C-3...

Sterols- steroids containing an alcoholic group at C-3 position and a side chain of 8  to 10 carbon atoms at c-17

Fire alarms precautions for fire prevention, Fire Alarms : Most modern fir...

Fire Alarms : Most modern fire alarm systems are electric and can be activated from several points throughout a building. These points usually consist of glass-covered switches wh

Keep acid/base concentration of blood constant - kidney, Keep acid/base con...

Keep acid/base concentration of blood constant - Function of Kidney Keep the acid/base concentration of the blood constant and regulate the blood-pressure. Renin, an enzyme- li

Experiment to make soap, How to make soap Soap can be made from waste f...

How to make soap Soap can be made from waste fat. Secure some waste fats and melt in a dish. Strain the fat by several layers of cloth. Weigh the fat and then weigh out about o

Discuss in brief about the red soils, Discuss in brief about the Red soils ...

Discuss in brief about the Red soils Red soils are characterised  by a rusty red colour due in most cases to the presence of various oxides of iron.  They are either formed  in

Factors that affect the surface roughness of aluminum, This study will exam...

This study will examine surface roughness encountered in CNC milling and it will consider the factors that affect the surface roughness of aluminum and mild steel and the means by

To study the relation between volume and pressure of air, To study the rela...

To study the relation between volume and pressure of air Get  a rubber bung or 'door stop' which just fits in a narrow glass jar or measuring cylinder. Attach it  to  the  lowe

Food chain, Food Chain: As you know from the discussion of the previous...

Food Chain: As you know from the discussion of the previous subsection, one of  the ways in which the organisms are  related is through food, that is, one organism becomes food

Explain the chronic glomerulonephritis, Explain the Chronic Glomerulonephri...

Explain the Chronic Glomerulonephritis The repeated occurrence of acute glomerulonephritis, persisting proteinuria, hypertension and chronic renal failure may damage more and m

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