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

Resource maps, Types of Resource Maps: Generally,  several  types of ...

Types of Resource Maps: Generally,  several  types of maps, based on the type of.resburces,  are prepared. Some of these are: Soil Maps showing the types of  soil, their comp

First aid procedures for chemical accidents, FIRST AID PROCEDURES FOR CHEMI...

FIRST AID PROCEDURES FOR CHEMICAL ACCIDENTS : There are three general procedures to be followed for chemical accidents and all are based on the principle of diluting the hazardous

Define the frontal area or pole of the cerebrum, Define the frontal area or...

Define the frontal area or pole of the Cerebrum The frontal area or pole, as shown in the Figure, extends anteriorly from the pre motor area to include the remainder of the fro

What is CEC, What is CEC The CEC of most soils increases with pH, belo...

What is CEC The CEC of most soils increases with pH, below pH 6.0 the charge for clay mineral is relatively constant, while above pH 6.0 the charge on the mineral colloid incr

The arctic circle lies at which latitudes, The Arctic Circle lies at which ...

The Arctic Circle lies at which latitudes: At (66 ½oSouth)

Explain automaticity - properties of a beating heart, Explain Automaticity ...

Explain Automaticity - Properties of a Beating Heart Take out my heart from my body and it will still go on and on beating. How true! Even a completely denervated heart eom the

Why are clouds white, Why are clouds White? Why does a day have 24 hours? ...

Why are clouds White? Why does a day have 24 hours? Answer: A cloud is a visible accumulation of very tiny water droplets or solid ice that float in the air. Clouds are usuall

Sedimentary rock, would sandstone or quartzite break easier?

would sandstone or quartzite break easier?

What is extinction?, What is extinction? When did it happen? What are some...

What is extinction? When did it happen? What are some human activities that lead into extinction

Physico-chemical properties of folic acid, Folic acid has the following imp...

Folic acid has the following important physico-chemical properties: a)  It is a yellow, spear-shaped crystalline  substance. b)  The compound is sparingly soluble in 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