TESTING OF STEEL REINFORCEMENT IN CONSTRUCTION SITE
Steel is the backbone of every construction industry. Good quality and best grade of steel reinforcement is the ultimate target for any site managers. The strength and durability of a structure depends fully on good quality steel. No compromise on steel quality. To check the quality, we need to test it at every consignment.
There are basically two types of steel reinforcement testing are done for construction work. One is the physical test, and another is the chemical composition test. Each construction site has a lab for testing of concrete cubes, coarse and fine aggregates etc. but chemical test for steel needs a separate setup and expertise. So, most of the site do chemical test from outside agency. And, physical test is carried out at site.
PHYSICAL TEST:
Physical tests can be done in any construction site with
minimum effort. It needs only weighing machine, cutting tool, Vernier scale etc.
In physical test of reinforcement, the followings are checked.
Unit weight of bar: To check the unit weight, cut the
bar exact 1m length 3 nos. and weight it on weighing machine separately and
compare it with the standard weight. During manufacturing process some
manufacturing defects may occur which may cause under dia. Bar or over
dia. Bar, but it should be within the tolerance limit prescribed in the I.S
– 1852: 1985. The I.S.Code refers the following tolerance of weight for
different dia. of bar in percentage terms.
·
Weight tolerance for dia. Up to 10 mm bars ---------------
+/- 7%
·
Weight tolerance for dia. above 10 to 16 mm bars
------- +/- 5%
· Weight tolerance for dia. above 16 mm bars --------------- +/- 3%
Dia. Of bar: The tolerances on size and dia. of bar
shall be +/- 0.5 mm and this can be checked by Vernier scale.
Surface defects: Finished material shall be free from Rusting, cracks,
surface flaws, laminations,
rough, jagged and imperfect edges, etc.
CHEMICAL COMPOSITION TEST:
In chemical composition test for reinforcement bars mainly
three elements are checked. The Carbon, Sulphur and Phosphorus. Percentage of
these elements should not exceed the maximum limit as per I.S – 961: 1975 given
below:
Carbon – 0.27%
Sulphur – 0.055%
Phosphorus – 0.055%
The mechanical properties like tensile and compressive strength
are also tested in chemical lab.
Great Article. Thank you for providing such a unique and valuable information to your readers. I really appreciate your work. Steel buildings
ReplyDeleteThere is likewise a determination of fastener lash closures to browse, contingent upon what sort of making sure about focuses you have accessible.pneumatic strapping tools
ReplyDeleteSomething more important is that when searching for a good on-line electronics store, look for online stores that are constantly updated, maintaining up-to-date with the most up-to-date products, the perfect deals, in addition to helpful information on products. This will ensure that you are doing business with a shop that really stays ahead of the competition and provide you what you should need to make intelligent, well-informed electronics purchases. Thanks for the important tips I’ve learned through the blog. steel structure workshop
ReplyDeleteFundamental building design still plays a big role in overall building performance. On a typical building project, building shape/form alone can influence energy use by 10 to 15%. Combine that with the influence of glazing, which can often influence building performance in the 15-25% range. architectural services Barnet
ReplyDeleteExcellent post thanks for posting about HOME PLANS FOR LOW BUDGET BUILDING ,keep posting like this kind of content SAIL TMT Bar manufacturing companie is one of the top leading industry. They are best in supplying all types of steel for building construction.
ReplyDeleteMerely a smiling visitant here to share the love (:, btw outstanding style. asscher diamond manufacturer
ReplyDeleteHave you also been searching for Numerologist near me?
ReplyDeleteConsidering the latest trends on Google, most people found searching for “Numerologist Near Me.” Therefore, I recommend that instead of searching for Numerologist Near Me & because you reside in Delhi-NCR, a person should search for “Best Numerologist in Delhi.”
ReplyDeleteBest post! It gives me new information about . If your planning to build a structure then polycarbonate sheet price in Chennai is the best choice and they are one of the leading roofing sheet providers in India. They provide all types of roofing sheets for your home, buildings, and office.
Chromium provides a greater edge holding capability, which means that the blade will require less frequent sharpening. Europa-Road túlméretes szállítás
ReplyDeleteI have bookmarked your blog, the articles are way better than other similar blogs.. thanks for a great blog! https://www.24liveblog.com/live/U77go
ReplyDeleteWhat a thrilling post, you have pointed out some excellent points, I as well believe this is a superb website. I have planned to visit it again and again. 威而鋼購買
ReplyDeleteI have heard a wide range of stories throughout the long periods of the benefits in outlining with steel versus wood studs. Once I even heard you could assemble a whole house with the measure of reused steel from an enormous vehicle like a Cadillac.this website
ReplyDeleteThe utilization of this innovation has become very well known in the development of steel furniture.welding melbourne
ReplyDeleteRemarkable post about Boardwalk Systems, The information you have mentioned is really knowledgeable and engaging for us, I really enjoyed reading it. Thankful to you for sharing an article like this.
ReplyDeleteICF construction provides two benefits regarding the building's energy efficiency. To begin with, it is very tightly sealed, preventing air leakage through the walls. Second, there are no thermal bridges between the two continuous insulating layers, one inside and one exterior. Heat loss is drastically reduced because of the tight building envelope. A standard off-the-shelf ICF basement is often insufficient when constructing a high-performance home, such as a Passive House. In a frigid climate, such as Canada or the northern United States, it may struggle to fulfil insulation regulations. To handle colder areas, certain ICF manufacturers, such as WestPeak ICF, have designed products with an R-value of up to R-48.
ReplyDeleteThe furnace was built beside a hill having a flat area at the same elevation as the top of the furnace. Kilns
ReplyDeleteNice job, this is essential information that is shared by you. This information is meaningful and factual for us to increase our knowledge about it. research chemicals shop
ReplyDeleteBest Betting Sites in Canada 2021 - Mapyro
ReplyDeleteBest Betting 광명 출장안마 Sites in Canada 2021. 강원도 출장안마 Sportsbet, MyBookie, Bovada, Betway, Pinnacle, 888Sport, 오산 출장안마 Betway, 울산광역 출장안마 and many 이천 출장샵 more.
This is very informative and interesting for me. Thank you for such a wonderful post about Metal Trading Company in Saudi Arabia and for sharing. God bless you.
ReplyDeleteI Was Eagerly Looking For Content Like This, Right To The Point And Detailed As Well Accordingly Depending Upon The Matter/Topic. You Have Managed This Greatly For Sure. Top Gun Maverick Jacket
ReplyDeleteFashion is the thing that you make it - The primary thing you need to comprehend about fashion is that it is just what you make it, that's it. Ranboo Varsity Jacket
ReplyDeleteGreat article! All the articles you have, they enjoy reading and learning a lot. Your article is very helpful for me. I hope you will continue to write such good articles as well. Really enjoyed reading your blog.It is highly informative and builds great interest for the readers. For the people like us your blogs helps to get ideal information and knowledge. Thanks for providing such blogs. Top Gun Jacket
ReplyDeleteThis is very informative and interesting for me. thank you for such a wonderful post and for sharing. God bless you. we also provide service. Phytochemical Purification Technology for more info visit our website.
ReplyDeleteThis article you've just presented is appealing. I'd like to learn more about these types of blogs. Thank you so much for sharing this blog. home remodeling contractors Vancouver WA
ReplyDeleteYou've contributed some amazing photographs in this post. Thank you so much for sharing it. Keep up the good work. Commercial concrete contractors
ReplyDelete