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

Define the microwave processing, Define  the Microwave Processing Food...

Define  the Microwave Processing Food industry, in the recent years, has witnessed the emergence of microwave oven as a substitute for thermal oven for a number of food process

Explain oxygen dissociation curve, Explain Oxygen Dissociation Curve Wh...

Explain Oxygen Dissociation Curve While different partial pressures of oxygen are  plotted against the amount of  oxyhaemoglobin created or  dissociated, the sigmoid  curve  is

Ecology, what are relations of ecology with other sciences?

what are relations of ecology with other sciences?

Cell theory, Ask question #Minimumwhat is that definition for cell theory? ...

Ask question #Minimumwhat is that definition for cell theory? 100 words accepted#

Explain transport of oxygen by plasma, Explain Transport of Oxygen By Plasm...

Explain Transport of Oxygen By Plasma At a tension of 100 mm Hg, 0.3 ml oxygen is dissolved in every 100 ml of blood. This small volume is negligible as far as the oxygen suppl

Why are halogens so reactive, Question 1 Discuss the efforts introduced t...

Question 1 Discuss the efforts introduced to manage of air and water pollution Question 2 Comment briefly on agricultural practices in Arid zone Question 3 Anal

Explain in-vitro detection of antigen-antibody interaction, Explain In-Vitr...

Explain In-Vitro Detection of Antigen-Antibody Interaction Any infection caused, requires a proper treatment. This can be achieved only if the correct organism is identified. S

Explain the water cycle, The Water Cycle Heat some water unless it is n...

The Water Cycle Heat some water unless it is near the boiling point. Place it in a drinking glass and rotate the glass so as to moisten the sides right to the top. Place some v

Define haemorrhagic or blood loss anaemia, Define Haemorrhagic or Blood Los...

Define Haemorrhagic or Blood Loss Anaemia The body replaces plasma within 1-3 days after a haemorrhage, but this leaves a low concentration of red blood cells. In chronic bloo

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