Author Archive: Johnny

MTech Structural Engineering

Civil Engineering Undergraduate (B.Tech, BE) Course Syllabus – Semester 3

Civil Engineering Syllabus

Civil Engineering Undergraduate – Semester 3 MECHANICS OF SOLIDS Module 1 Tension, compression & shear Types of external loads – self weight – internal stresses – normal and shear stresses – strain – Hooke’s law – Poisson’s ratio – relationship…
Read more


Scaffolding structures that need to be designed

Scaffolding There is a limit to the safe working height at which a worker can access the building work from ground level. Therefore some form of temporary support is required to provide a safe and convenient working surface. This is known as…
Read more

Sub Surface Irrigation | Subsurface Irrigation Working | Advantages

Sub Surface Irrigation

Introduction Sub Surface Irrigation In sub surface Irrigation , effluent is delivered directly to the infiltrative surface of the soil using specially manufactured polyethylene tubing with built-in turbulent flow emitters. Subsurface irrigation is a highly-efficient watering technique. It reduces outdoor water use by 30…
Read more

Shotcrete – Concrete Repairing Techniques

Shotcrete in Concrete Repair Shotcrete is defined as “mortar or concrete pneumatically projected at high speed onto a surface” (American Concrete Institute, 1990). There are two basic types of shotcrete—dry mix and wet mix. In dry mix shotcrete, the dry cement, sand, and coarse…
Read more

Trickling Filters & Advantages

Trickling Filters

Trickling Filters What Are Trickling Filters? •Fixed media treatment system •Waste water is distributed over media colonised by micro-organisms •Consists of a  bed of highly permeable media •An under drainage system important both as a  collection unit  &  as  porous…
Read more

Curing of Concrete and General Methods of Curing

Curing the concrete roof slab

Curing of Concrete and General Methods of Curing Concrete that has been specified, batched, mixed, placed, and finished “letter-perfect” can still be a failure if improperly or inadequately cured. Curing is usually the last step in a concrete project and,…
Read more

Types of Portland cement and Uses

Types of Portland cement and Uses Portland cement was named for the Isle of Portland, a peninsula in the English Channel where it was first produced in the 1800’s. Since that time, a number of developments and improvements have been…
Read more

What is Concrete and what are the Properties of Concrete

Grand Coulee Dam - Properties of Concrete

What is Concrete and what are the Properties of Concrete Concrete is a mixture of portland cement, water, aggregates, and in some cases, admixtures. The cement and water form a paste that hardens and bonds the aggregates together. Concrete is…
Read more

How to select the Formwork System

Prefab Alum

How to select the Formwork System Why worry about the Choice of Forming System? Refer ppt below. What Choices Do I Have? Wall Forming Walls Loose Framing Prefabricated Panels Crane Set Gangs Wall Systems (Prefabricated Panels) Prefab Steel Panel Prefab…
Read more