## What is Workability of Concrete? – Factors Affecting Workability

What Is Workability of Concrete? The term workability indicates the ease or difficulty with which the concrete is handled, transported and placed. The amount of water present in concrete should be in the proper ratio. Generally, a higher water-cement ratio is required for good workability. In the actual function of water is to lubricate the concrete. …

## How to Calculate Cement Sand and Aggregate Quantity in Concrete?

Calculation of Quantity of Materials For Concrete Mix Ratio Concrete is the mixture of cement, sand, aggregates and water. Cement concrete is the major building material in the construction industry. It can be easily moulded into durable structural members.  Today in this article we will learn how to calculate the quantity of cement, sand, aggregate and …

## What are the Merits and Limitations of Wind Energy?

Merits and Limitations of wind Energy Wind energy is a renewable source of non-polluting energy and is emerging as one of the most potent sources of alternative energy which will help to a great extent bridging the gap between energy demand and supply. Compare to solar energy, the wind is a very complex resource, possessing a three-dimensional value …

## OPC vs PPC – Difference Between OPC and PPC Cement

Difference Between OPC and PPC Cement The long-form of OPC is Ordinary Portland Cement and the long-form of PPC is Portland Pozzolana Cement. Generally, ISI mark on ordinary Portland cement bag is black in colour whereas the ISI mark on Portland pozzolana cement bag is red in colour. Difference between OPC and PPC cement are as follows: Manufacturing …

## Difference Between One way and Two way Slab

What is the Slab? In reinforced concrete construction, the slab is an extensively used structural element forming floors and roofs. A concrete slab is the plane element having the depth d much smaller than its span and width.  It may be supported by reinforced concrete beam, by masonry wall or directly by column. Difference between one way and two way …