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

Discuss problem oriented medical records, Question 1. Discuss Problem O...

Question 1. Discuss Problem Oriented Medical Records. 2. What is meant by colour coding? Explain the different types of colour coding. 3. What is a "Code Set"? Explain th

Explain the term liming - decreasing soil acidity, Explain the term Liming ...

Explain the term Liming - Decreasing Soil Acidity Acid soils can be managed in two ways, viz. either by growing crops suitable for particular soil pH or by treating the soils w

Explain what is argininosuccinate synthetase, Explain what is Argininosucci...

Explain what is Argininosuccinate Synthetase In a 2-step reaction catalyzed by the cytosolic enzyme argininosuccinate synthetase, citrulline and aspartate are condensed to form

Experiment of a balance barometer, A balance barometer This device depe...

A balance barometer This device depends on the fact that dry air is heavier than moist air at the similar temperature. Two equal cylinders (tin cans would do) are mounted, o

Define the blood groups, Define the Blood Groups We start our discussi...

Define the Blood Groups We start our discussion by answering the question - do all of us have the same blood group? No, each individual has a different blood group. The differ

Sense organ, when one moves from bright to dark place, chairs are not seen ...

when one moves from bright to dark place, chairs are not seen at ones. why?

Improvement of techniques and crafts in golden era:, Improvement of Techniq...

Improvement of Techniques and Crafts : In this period, there was a spurt in agriculture, as new techniques and seeds were introduced. More importantly, the crafts greatly improv

Wheat flour, why- 1) alcoholic acidity is determined? 2) ash content is imp...

why- 1) alcoholic acidity is determined? 2) ash content is important factor in wheat flour? 3)carbohydrates and sugar are separately denoted on pachaging material?

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