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

Food microbiology, discuss six major topics of microbiology

discuss six major topics of microbiology

Nursing responsibilities, what are the different types ofnursing responsibi...

what are the different types ofnursing responsibilities in lab test

Nonionising radiations, Nonionising Radiations : As stated earlier the rad...

Nonionising Radiations : As stated earlier the radiation hazards are not limited to ionising radiations from radioactive materials. There are a number of other radiation sources i

Thermal veiocity, what is thermal velocity ofa material..

what is thermal velocity ofa material..

What is permanent wilting percentage, What is permanent wilting percentage ...

What is permanent wilting percentage As plants absorb water from a soil, they lose most of it through evaporation at the leaf surface.  Some water is also lost by evaporation d

Ecological crises in oceans and coasts, Ecological Crises in Oceans and Coa...

Ecological Crises in Oceans and Coasts: Coastal and marine areas all over the world including those in India are under stress, because two thirds of  the world's population li

Medicine in golden age, Medicine: Aristocratic patronage for physicians...

Medicine: Aristocratic patronage for physicians and surgeons was not wanting, though, perhaps, surgeons did not enjoy a very high status in comparison  to physicians. The Greek

Explain macrophages, Explain Macrophages They are large, long living ef...

Explain Macrophages They are large, long living effective phagocytes, which enlarge out of monocytes. It is an irregular cell about 25-50 mm in size. It has a large ovoid nucle

Determine the hormone secreted from the parathyroid gland, Determine the Ho...

Determine the Hormone Secreted From the Parathyroid Gland The parathyroid gland secretes parathormone. The amount secreted is strongly influenced by the level of calcium in the

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