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

How is the parathyroid hormone secretion regulated, How is the parathyroid ...

How is the parathyroid hormone secretion regulated? It is simple. An increase in parathyroid hormone causes an increase in calcium absorption from the intestine and renal tubul

Psychology and science, Plan 1 Induction 2 Features of science a) controlle...

Plan 1 Induction 2 Features of science a) controlled observation b) objectivity c) falsifiability d) paradigm e) replicability 3 Aims of science a) prediction b) understanding c)

The property of cleavage, Which  minerals best illustrates the property of ...

Which  minerals best illustrates the property of cleavage: Mica

Explain cellulose, Cellulose:- It is the main constituent of plant cell...

Cellulose:- It is the main constituent of plant cell walls and  the most common and abundant of the D-glucose polymers. This does not occur in the animal body. It is a homopoly

Ozone gas, how does it get into the earth?

how does it get into the earth?

The industrial revolution (1760-1830), We will first give a brief descript...

We will first give a brief description of  the qocial and economic changes of  this period so  that developments in science can be seen in the proper perspective. Already, by  the

Anthropological evidence, Anthropological Evidence Modern humans aros...

Anthropological Evidence Modern humans arose at a time when the Earth was going through a very cold and icy period called the Ice Age, which began about 75,000 years ago and

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