Civil Engineer Notebook

New Pamban Bridge Inaugurated – India’s Coastal Connectivity Gets A New Chapter. Introduction The New Pamban Bridge, which took years of anticipating, is finally open and it is one of the major developments in India infrastructure sector. The bridge is situated in Tamil Nadu, and it joins the mainland Mandapam with the Rameswaram Island, instead of the old bridge previously built in 1914 and used by the area during the last one hundred years. However, this new bridge is not any usual bridge; it is the first railway sea bridge in India that has a vertical-lift. You could guess just how special this route could be, provided you have ever been to Rameswaram or have ever experienced the beautiful train ride over the original Pamban Bridge. By the opening of the new construction, travel will not only be safer and faster but one will get a sensation of entering the future and respecting the past. What Makes New Pamban Bridge to Be of Importance? So here is a simple break down. The former bri...

FINNESS OF CEMENT TEST BY DRY SIEVE as per IS 4031 Part - 1 1. Scope : This procedure covers the test method for determining the fineness of cement by dry sieving as represented by the mass of residue left on a standard 90 micron IS Sieve. 2. APPARATUS : Sieve - 90 micron IS Sieve Balance - Balance - The balance shall be accurate to 0.1 percent of the weight of the test sample. Brush - A nylon or pure bristle brush, preferably with 25 to 40 mm bristle, for cleaning the sieve. 3. Test Procedure : Weigh accurately 100gm of cement (Wc) and place it on a 90 micron IS sieve. Break down any air lumps in a sample with fingers without rubbing them on sieve.  Place it on the sieve, being careful to avoid loss. Disperse any agglomerates. Fit the lid over the sieve. Continuously sieve sample by holding the sieve in both hand & Giving wrist motion until no more fine material passes through it. Weight the residue left on the sieve after sieving as (W1). Repeat the procedure for second sampl...

Sand silt Content Test (IS 2386 Part II) Purpose : In order to find out the proportion of silt (fine dust and clay crown) in natural sand. This may cause concrete to be weakened by excessive silt which causes weakening in the attaching of cement and the aggregates. Apparatus : Measuring cylinder /graduate jar 250 ml Water (clean tap water) A 1 percent salt (common salt) or sodium chloride solution (to facilitate sedimentation) fine aggregate ( Dry Sand sample) Stopwatch or a timer Test Procedure : Sample up:                dry sand up to mark 100ml in the measuring cylinder. Add salt solution:                To the 150 ml line, add 1% solution of salt water. Shake Well:                Put the lid on the top and shake the cylinder hard with about 2 minutes to make sure that the silt is well mixed. Let them settle:           ...

Which Challenges, Tools, and Tips Do Civil Site Engineers Have to Face? Provided that once in your life you have walked or driven past a construction site to find there a person wearing a helmet, looking at drawings, and issuing instructions- there is a great probability that you have come across a civil site engineer doing his or her job. But have you ever thought what their day actually looks like? All right, I will explain it to you, not using technical terms, but as you would explain to a friend, over a cup of chai. A. Who is Civil Site Engineer? It is his/her duty as a civil site engineer to ensure that what has been made on paper is constructed well on the field. They are the interface between the architects, designers, in laborer's and the management team of the project. Quality control of concrete, structural safety and quality of construction, site engineer is present, on every day. ADS B. The Common Day-To-Day Operation There is no set time to wake-up or time...