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

Chemical hazards, CHEMICAL HAZARDS : Chemicals are present in all laborato...

CHEMICAL HAZARDS : Chemicals are present in all laboratories. It is good to consider all chemicals toxic and flammable unless one has definite information regarding its nature. Ou

Fst-01, Give reason for the benifits of our technological development not r...

Give reason for the benifits of our technological development not reaching all the strata of our society.

Observing the phases of the moon, Observing the phases of the moon Over...

Observing the phases of the moon Over the time of a lunar month have the children make nightly observations and illustrate drawings of the moon. Start at new moon and continue

Explain the rectum and anal canal, Explain the Rectum and Anal Canal R...

Explain the Rectum and Anal Canal Rectum: This is a slightly dilated part of the colon. It leads from the pelvic colon. Anal canal: This is a short canal which leads fro

Citric acid, physical and chemical properties

physical and chemical properties

Illustrate the features of soil textural classes, Soil Textural Classes ...

Soil Textural Classes On the basis of the proportion of different soil separates present, the soils are classified into different groups called as  soil classes. The soil class

The water will not run through the cloth, The water will not run through th...

The water will not run through the cloth Choose a glass jar and a piece of cloth from an old sheet or handkerchief. Fill the jar with water. Wet the cloth well, stretch it over

Atom, what is the difference in atomic mass of iodine and magnesium

what is the difference in atomic mass of iodine and magnesium

Another way to show that air expands when heated, Another way to show that ...

Another way to show that air expands when heated Snap a toy balloon over the neck of a small bottle and place the bottle in a pan of warm water.

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