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The Constructor - Civil Engineering Home for Civil Engineers

The Constructor - Civil Engineering Home provides informational resources to Civil Engineers around the globe on various subjects such as construction management, Structural Engineering, Building Construction Tips, How to Guides for Civil Engineers etc.

Difference Between Magnitude and Intensity of Earthquake

Magnitude and intensity measure various characteristics of earthquake. The former measures the energy released at the source of the earthquake. However, the latter measures the strength of shaking generated by the earthquake at a certain location.

Test for Setting Times of Concrete Mixture Based on ASTM C403M-16

The penetration resistance test used for the determination of initial and final setting time of concrete mixture in laboratory and project site, and the effects of variables, such as water content; type and amount of cementitious material; or admixtures, upon the ...

Magnetic Compass Used in Surveying -Principles & Types

A compass surveying is performed by means of a magnetic compass which helps to determine the angles and the direction of the survey lines. The main two types of magnetic compass employed are a prismatic compass and a ...

What is Fire Resistance of Concrete? Mechanism and Factors

Fire resistance of concrete is the ability of concrete to withstand fire or to give protection against fire. This involves the ability of concrete structural element to continue perform a specific structural function or confine fire or both.

Errors in Chain Surveying – Types and Causes

The errors formed in chaining can be either cumulative error and compensating error. The errors can be considered either as a negative value or positive value depending on whether the result is a higher value or smaller value.

What is Ranging? Direct and Indirect Ranging

The process of fixing or establishing intermediate points to facilitate measurement of the survey lines are called as Ranging. The intermediate points are located by means of ranging rodes, offset rods and ranging poles. Ranging ...