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What is New in the IS codes: Recent Revisions of Which You should be Aware

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What is New in the IS codes: Recent Revisions of Which You should be Aware. Why Does Code Revision Matter? The construction quality and safety is pegged on the Indian Standard (IS) codes. They change to accommodate new materials, new technology, lessons captured in the failures, and best sensed practices all over the world. As an engineer, it can be said that being on top of the recent changes to IS codes will make sure that once your project is compliant, it is also more intelligent and tougher. Key Recent Changes in IS Codes of Civil Engineering (updated to 2023-24): Note: BIS official portal is where latest updates are to be referred to always. 1. IS 456 Plain, and Reinforced Concrete-Code of Practice Status: Revision of primary order Future Changes: High-performance and self-compacting concrete features are provided Modifications of curing time factor and durability factors as per environment Better coverage of sustainability and green practices Why It Matters: It is one of the mos...

Role of Non-Destructive Testing (NDT) in Modern Construction

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Role of Non-Destructive Testing (NDT) in Modern Construction  The construction sector has become very competitive and rigorous in terms of quality and Non-Destructive Testing (NDT) has emerged as a core instrument in ascertaining soundness of structure, safety, and compliance with the codes, without incurring any destruction to the structure. NDT plays a pivotal role in the construction industry because it is used to detect flaws in bridges, high-rises, tunnels and dams in order to ensure the quality of the materials used and make critical decisions during and after the construction process. NDT in Construction What is NDT in Construction? Non-Destructive Testing is a term that is used to describe ways in which materials or structures can be tested without compromise or destruction. USP Pitts and DTT do not penalize conventional concrete, Steel, welds etc., they permit testing without breaking, cutting, or destroying the element in-situ. Widely Used NDT in Construction: Advantages ...

Methods of Concrete curing : Site vs Guidelines in the Code

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 Methods of Curing Concrete: Site vs Guidelines in the Code One of the most important steps in the construction of concrete structure is curing yet it is most of the time the neglected part on-site. Even though design and mixing are refined, poor curing may end up destroying the durability of even the best concrete in the long term. This blog pits site curing as it is practiced on sites against the guidelines that are provided regarding the same in IS codes, and investigates the way to get the two to meet. The reasons to cure: Curing entails ensuring that the concrete has the right level of moisture, temperature and time in order to develop the required strength and durability. The result of poor curing is: Surface cracks Decreased compressive strength Scaling and dusting The poor abrasion resistance Code Guidelines of Curing (IS:456): In accordance with the provisions of Indian Standard IS 456:2000 (Clause 13): IS recommended curing time: 7 days of Ordinary Portland Cement (OPC) 1...

New Pamban Bridge

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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 METHOD

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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)

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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:           ...

Daily life of civil site Engineer : Challenges, Tools, Tips

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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...