Uncategorized

Dredging. What is Dredging? Definition and Purpose

Dredging is a process that involves the aquatic excavation of water beds to remove sediments, pollutants, shellfish and other materials. The methods and machinery used in dredging vary widely. Most dredging is done by ships that tow a dredge along the water bed. Self standing dredges and dredge pumping stations are used for routine tasks. A dredge, which is the catch all term for the…
Read more
Uncategorized

What is Roller Compacted Concrete?

Recently while working on a dam project I go through a term called Roller Compacted Concrete. Mostly abbreviated as R.C.C but it must not be confused with Reinforced Cement Concrete. The word is enough to define itself; roller compacted concrete is a relatively stiff…
Uncategorized

Shotcrete and Gunite Difference and Definition

The guniting is the most effective process of repairing concrete work which has been damaged due to inferior work or other reasons. It is also used for providing an impervious layer. The gunite is a mixture of cement and sand, the usual proportion being 1:3. A cement gun is used to deposit this mixture on the concrete surface under a pressure of about 20 to 30 N/cm2. Shotcrete is concrete (or…
Read more
Uncategorized

What are Groundwater Zones, Aeration, Saturation, Pheratic Zone, Vedose Zone

Groundwater is enormous and significant source of fresh water that owns huge share regarding water requirement of humans. Soil being a porous and non-porous medium allows movement of water through interstices and pores through various phenomenon. In terms of groundwater hydrology, the underground soil water is classified in to two basic zones:- a) Zone of Aerationb) Zone of Saturation Zone of…
Read more
Uncategorized

Characteristics of a Good Formwork

Concrete being plastic material in fresh state, has to kept within an enclosure (moulds) till it gain reasonable strength, this temporary structure which has to be built for any concrete member is called “Formwork”. Click me to read more about the Form work defintion and other defintions Characteristics of a Good Formwork Basic Requirements of a Good Formwork: @import…
Read more
Uncategorized

Fatigue (Alligator) Cracking

The word Fatigue means repetitive action of loads, thus fatigue cracking by names means cracking due to the repetition of loads. As the pavement is subjected to number of vehicles of different sizes and loads the stress keeps on pilling up and thus the cracks appears which…
Uncategorized

What is Formwork, Shuttering, Scaffolding, Shouring

During construction of reinforced concrete works as well as their maintenance, we need to support the structure as long as it is in its premature state or plastic state as it could not even bear its own load. After the suitable duration of time, i.e. when concrete sets…
Uncategorized

What is Timber, Merits, Demerits Growth and Structure

Variety of Construction Materials are being used now a days depending upon the availability and transportation cost, lesser the material available expensive will be the structure and as a result structural engineer might have to think to change the material accordingly. In mountains where brick is not easily available due to less availability of plain surface timber is preferred, similarly in…
Read more