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 glucagon, Explain Glucagon Glucagon is secreted by a-cells of I...

Explain Glucagon Glucagon is secreted by a-cells of Islets of Langerhans. It is a hormone containing 29 amino acids. Its effects are opposite to that of insulin.

Define the both macronutrient and micronutrient, Define the both macronutri...

Define the both macronutrientand micronutrient. An element necessary in large amounts (usually > 50 mg/kg in the plant) for the growth of plant is called a macronutrient and in

Medical terminology, identify ten diagnostic medical terms that use suffixe...

identify ten diagnostic medical terms that use suffixes note note suffixes and provide definitions

Torque and equilibrium, equilibrium, Physics what is the effect of torque a...

equilibrium, Physics what is the effect of torque and equilibrium on taps, doors,handle bars and bicycles??

Concept of digestion in the mouth, Digestion in the Mouth The mouth  re...

Digestion in the Mouth The mouth  receives food. The tongue serves  in  swallowing, manipulating the food for chewing and  in perceiving taste. The teeth mechanically subdivide

Electricity, positive energy power full or negetiveenergy

positive energy power full or negetiveenergy

Stomach, Describe the structure of the stomach. How is it modified to carry...

Describe the structure of the stomach. How is it modified to carry out its functions? How does It compare to that of the fetal pig?

Balloon experiment, Another balloon experiment Stretch a rubber balloon...

Another balloon experiment Stretch a rubber balloon over the neck of a little bottle. Place it in the receiver jar and delete some of the air with the pump. What happens? How d

Explain ablation, What is ablation? Ans)  Ablation is a technological t...

What is ablation? Ans)  Ablation is a technological term for the loss of snow and ice from a glacier. The process happens by a combination of the two physical processes, meltin

Define psychology, QUESTION (A) Define Psychology (B) Why is psycholo...

QUESTION (A) Define Psychology (B) Why is psychology considered a science? (C) (i) Clinical and Counselling psychology sound similar. How do they differ? (ii) Discuss a

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