Difference Between Pre Tensioning and Post Tensioning

Difference Between Pre tensioning and Post tensioning

Prestressed Concrete There are three main types of concrete PCC, RCC and PSC that is Plain cement concrete, Reinforced cement concrete and Pre-stressed concrete, used for the construction of building and bridges since a long time. Concrete is much strong in compression and works well when used as a vertical column whereas when we use …

Read moreDifference Between Pre Tensioning and Post Tensioning

Concrete Mix Ratio, Types, Proportioning of Concrete Mix & Methods

Concrete Mix Ratio, Types, Proportioning of Concrete Mix and Methods

What is Concrete Mix ratio? It is the process of determination or selection of the relative proportion of concrete ingredients that means cement, sand, coarse aggregate, and water to obtain concrete of desired quality. From the strength point of view and economy, the main objective to select the fine and coarse aggregate in such a …

Read moreConcrete Mix Ratio, Types, Proportioning of Concrete Mix & Methods

Prestressed Concrete – Definition, Method, Advantages, Disadvantages

Prestressed Concrete - Definition, Method, Advantages, Disadvantages

What is Prestressed Concrete? Concrete can withstand a great amount of compressive stress but it has a very low tensile strength. Because of low tensile strength, concrete gets cracks when subjected to maximum load.  As the name indicates prestressed concrete is a form of concrete in which internal stresses are introduced before its application so that …

Read morePrestressed Concrete – Definition, Method, Advantages, Disadvantages

Nominal Mix Concrete Vs Design Mix Concrete

Nominal Mix Concrete Vs Design Mix Concrete

Concrete Concrete is made up of mixing cement, sand, aggregate, admixtures and water. The strength, workability and durability of concrete depend on mixing proportions of its ingredients.  Normally there are two types of methods which are used for proportioning different ingredients  Nominal Mix Design Mix  Selection of type of concrete mix depends on the requirement …

Read moreNominal Mix Concrete Vs Design Mix Concrete

Specific gravity of Cement – Definition | Importance | Test Procedure

Specific gravity of Cement - Definition | Importance | Test Procedure Civil Lead

Specific Gravity of Cement As we know that the specific gravity of ordinary portland cement is between 3.1 to 3.15 g/cc and for portland pozzolana cement and portland blast furnace cement it is near to 2.90 ( As per Portland Cement Association -PCA 1998) What is specific gravity? The specific gravity of any substance may …

Read moreSpecific gravity of Cement – Definition | Importance | Test Procedure

Soundness Test of Cement By Le-Chatelier Apparatus

soundness test of cement

Soundness Test of Cement Certain cement shows expansion after setting and causes disruption of hardened mass. The testing of the soundness of cement is to ensure that the cement does not show any appreciable expansion after setting. Unsoundness of cement is due to excess of lime, magnesia and proportion of sulphate. There is Le-Chatelier test to …

Read moreSoundness Test of Cement By Le-Chatelier Apparatus

14 Types of Cement and Their Uses

Types of Cement and Their Uses

Types of Cement Cement is a building material which is used in the construction industry. Cement sets well underwater and hardens quickly and attain strength. Cement contains hydraulic properties to great extent and acquires more strength on the setting. In actual cement is a Calcareous substance which is used in mortar or concrete for construction. …

Read more14 Types of Cement and Their Uses