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 protein reserve - functions of plasma proteins, Explain Protein Res...

Explain Protein Reserve - Functions of Plasma Proteins Plasma proteins provide a reserve, which can be drawn upon for vital functions in the situations of starvation and protei

Explain the adrenocorticotropic hormone (acth), Explain the Adrenocorticotr...

Explain the Adrenocorticotropic Hormone (ACTH) ACTH, also known as corticotrophin, is a polypeptide and is synthesized by corticotroph cells of the anterior pituitary gland. It

Sex, How are babys produced

How are babys produced

Atmosphere, Atmosphere: Atmosphere is an envelope of the most useful ga...

Atmosphere: Atmosphere is an envelope of the most useful gases that cover the planet earth. It makes our planet unique and enables life to prosper. If  the earth did not have a

Explain the cabinet respiration, Explain the Cabinet Respiration Such ...

Explain the Cabinet Respiration Such an apparatus is used when the respiratory muscles are paralyzed by an injury or an infection. A cabinet respirator consists of a box in wh

Law of action-reaction, connect 2 spring balances with their hooks. Ask par...

connect 2 spring balances with their hooks. Ask partner to hold one end of the balance while hold the other end horizontally. Pull the spring balance while your partner just hold t

What is alara, Question 1. Discuss the biological factors influencing ...

Question 1. Discuss the biological factors influencing radioactivity. 2. Explain the quality assurance of computed Tomography. 3. Write short notes on the following

Explain the Water balance function of the kidney, Explain the Water balance...

Explain the Water balance function of the kidney Water is one of the most important constituent in the daily diet. You are already aware of the roles it plays in our body. Main

Measuring atmospheric pressure with a bicycle pump, Measuring atmospheric p...

Measuring atmospheric pressure with a bicycle pump A bicycle pump with the washer reversed as represents can be used to calculate atmospheric pres- sure. The piston can be made

Soil genesis, How can we know the parent material of soils?

How can we know the parent material of soils?

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