Completed a Training program on “Extreme Weather Concreting” for Engineers from TATA PROJECTS Limited, Chennai Metro Phase II Project, Madhavaram Chennai.
This was the first offline event of the three sessions I had done for the TATA Projects in 3 weeks.
First training session was on the “Mass Concrete”, – Online
Second training session was on “Extreme weather Concreting”. – Online
This one was the third session I had again on “Extreme Weather Concreting”. – Offline
Its is great experience to be with these engineers working in prestigious projects and share my thoughts and train them in the logics of sorting issues as a “Concrete Engineer”.
Its fun and learning for me too, making my trainees analyse the problem and then logically arrive at a practical and conomical solution around the established methods and new technology available.
This program was coordinated by
CMTI – Civil Engg Connect
Er.Ashok Kumar, PE, PMP, IGBC-AP
I revisited Ranganathittu Bird Sanctuary after long 4 tears, it was a wounderful day of appeasement and observation. All associated with me already have an idea about my passion for photographing Crocodiles and the way I follow them in some places. I relived my same passion after 4 years.
Ranganathittu Bird Sanctuary is the place where I fell in love with crocodiles very early in life. The crocs have been with me for more time than my Civil engineering degree. I don’t not exactly remember how my passion for crocs developed.
The creature gives so much time to observe “just like models in the painting class” I kept observing them with some logical sense. I started questioning, how is one different from the other?
Then some science-based observations started. I started marking them and visited their places with repeating sightings.
Quite late into my involvement with them, I started observing their behaviour studies. The study included details on mating and area marking. Then came the offspring observation that included, marking them young and following them to their adolescent age and marking them for their breeding season.
I started travelling in an independent boat to have a detailed look and observation about crocodiles. I preferred sole companionship so that my hobby does not disturb others. Over the years I had only few companionship who joined me to observe crocodiles.
There are many places I have visited Crocks in the wild and also in captive.
I will start posting many photos that I have with stories that is related to pictures or the season that picture was taken….
For now, I am posting a few pictures that were taken on 07 January 2023. Ranganathittu Birds Sanctuary is a cluster of islands in the River Cauvery near Srirangapatna in the Mandya District of Karnataka State India. (Click for location on Google Maps). This is a place famous and known for migratory birds that come from far corners of the world. In the peak season, we could see some Exotic birds traveling across continents to build their nests and make their families there could be many who would visit often for the birds.
| Don’t be surprised to see the poly bags filled in sand and soil they have become very necessary to prevent the small islands from erosion. Ranganathittu losing its islands means it would lose the birds coming there – maybe crocs would go too! They need replacement before the monsoon. More about erosion and ecology in one of my next updates here. This Croc here is permanent on “this part of this Island” there is a land shortage as the population has grown. Young when compared to many here but strongly dominant in mating season fights. |
| This is female I have been seeing quite for atleast 10 years recognised to be rough ones as it has a ripped mark on the right shoulder. This day it looked like it had a good meal the bloated tummy says the stories. It has been on record here that the crocodiles have not been in conflict with humans even though some rare instances of dogs vanishing happens. The birds, fish and wild pigs make to the dining table of these crocs. |
| The denture Set I call them so – with love How many of you know the crocs tend lose their teeth and regrow them more than 1 time (human lose & regrow teeth once) The red circle marking indicating the skin damage suffered in one of the fights for hierarchy or for real estate ownership. |
| The croc that I have followed the most years – 3 decades one of the oldest here in the Ranganathittu Birds Sanctuary. This should be more than 75 yrs old. It has a unique place in my home too I will write about it in some other Blog. |
| When we go here in the winter months we do get to see these painted storks couples breeding. Some ornithologists do recognise the birds that come often or how many times they have bred etc. I do capture them occasionally |
| Sometimes these juveniles do take a little more than they can afford… I cannot use the regular saying “bite more than chew” Crocodiles do not have a tongue, not they chew they bite and swallow. The chunks of meat take days to digest as they are cold-blooded they need the heat of the sun’s heat to digest food! I read somewhere that recent studies have found that prehistoric crocodile ancestors are warm-blooded. Scientists have discovered this fact by studying oxygen in fossilised teeth. There is a lot to know about these characters! |
| These youngsters before they get the bulk around their necks will give a very beautiful view of the “zip-lock denture” The teeth from the upper and lower jaw will slip in between each other – they have only canine teeth not molar like as they don’t chew. |
| It’s no harm to watch these winged birds! Lovely to see these birds spread their wings to get their feathers dry, they look beautiful and so graceful when they turn around. |
| Sometimes the Crocs slip into the water and glide away from us slowly and go down into deeper water or the next island to have a peaceful time… That is a majestic swim that resembles the catwalk on the ramp! |
| One more of the juveniles probably the ones who could not get the prime position on the rock had to settle on the roots of the tree & the soil bag put up to prevent erosion. |
| This one is one of the ferocious fighters for real estate here and the females that come with it! It has one of the most powerful bites – in fact it has the couple of teeth from lower jaw that has penetrated throw upper jaw ! |
| The hind legs and their claws the marks on the skin many times these are critical to identify & differentiate them. For females, they are of good use to digging to lay eggs and close them! |
Crocodiles have not changed for nearly a million years they have adopted and survived many critical changes that have happened on this earth. I do mention in my lectures that Crocs are one of the best examples of sustainable living.
Watch out this space for more updates on my passion, crocodile photography.
This hands-on workshop was first designed when the IS Code for Concrete Mix Proportioning IS:10262 underwent a major revision including all the durability factors of IS-456 2000, incorporating many materials like chemical admixtures, mineral admixtures, Blended cements etc., basically for the field professional engineers very quickly on demand from the academic institutions it was revised to accommodate the university syllabus driven requirements thus it became a workshop where practicing professionals and the students could attend together and get the career opportunities. The Second Revision to this program was incorporated when the IS Code for aggregates IS: 383 were revised in 2016 to accommodate the knowledge on the different types of aggregates and their importance in Concrete Mix Proportioning. The Third Revision happened when the IS 10262 was revised again in 2019 this was one of the radical changes which had essence of the old new and future. Some performance based concrete provisions were also part of revisions this has brought new dimensions to know about concrete proportioning. This two days workshops will gives hands on experience on mix design practices using IS 10262.
We at Don Bosco Institute of Technology, Bengaluru, organized a Two days’ workshop on concrete mix design using IS 10262:2019 theory & practice by an eminent speaker Er.Nagesh Puttaswamy, Independent Civil Engineering Professional. The programme is started around 10.00 am by welcoming the audience by Master of Ceremony by Prof. Raghavendra R and Dr.R.L.Ramesh Professor & HOD Department of Civil Engineering welcomed the Dignitaries to the stage by offering flower Bouquet. Ms. Vandana D raj of Seventh semester rendered the invocation song the invocation song followed by the welcome Address done by Prof. Sandhyarani G M. The resource person was introduced by Prof Vindyarani.M.P and the dignitaries on the Dias along with the selected participants lightened the lamp. Dr.R.L.Ramesh, Professor & HOD Department of Civil Engineering briefed about the department strength, facilities and also shared the department was accredited by NBA for three years. He also briefed about the importance of workshop and about the resource person. Er. Nagesh Puttasamy addressed the students about the schedule of the workshop and how he will take these two days to learn the mix design process. Presidential Remarks was given by Principal Dr. Nagabhushana B S, he congratulated the department for conducting the technical events in an effective way. Followed by the remarks of principal Mr.Gobinath S proposed the vote of thanks and after the short break the sessions were taken by Er. Nagesh Puttasamy.
The co-ordinator of the event Prof. Raghavendra D briefed the participants about the learning outcomes of this workshop and he shared his personal experience of the workshop attended by the same resource person. The session -1 was started around 11.00 and it was till 1.45 P.M. The resource person has given the brief knowledge about concrete the code books, material selection process admixtures etc., Followed by the lunch break from 1.45 to 2.30 the session -2 has been started and he was discussing about the process of mix design and prerequisites for the mix design with higher level of interaction with students followed by a break.
The conclusion remarks of the day was done by co-ordinator of the event Prof. Raghavendra D
Day -2 the session has been started around 9.30 A.M. Er. Nagesh Puttasamy enriched participants by creating the awareness about the various types of code books and the code book for the mix design. Followed by the break from 11.15 to 11.30 the session -3 all the participants were doing the manual calculation of mix design followed by the instructions of the resource person. Followed by the lunch break from 1.15 to 2.15 P.M the resource person performed the mix design in concrete laboratory section of material, mixing of material and he has performed the basic concrete test like flow test, slump cone test with and without admixtures. The participants got a Wide spectrum of Knowledge of knowledge and exposure by noticing the mix process. Finally the participant’s certificates were distributed institution wise and the oral feedback was shared by the participants. The participants appreciated the knowledge levels of the resource person, and appreciated the hospitality. Er. Nagesh Puttasamy was honoured by all the faculty members of civil department and HOD. The event co-ordinator Prof. Raghavendra D Thanked all the participants, faculty for the success of the workshop. The event came to end by national anthem followed by small refreshments.
Objectives
The objective of this program is to make the participants understand the facts about concrete beyond strength
- How properties of concrete shall be decided for specific jobs properties other than strength.
- How to interpret codal provisions of IS 456 – 2000 & IS 10262 – 2019 how correlate and take up critical conditions for design.
- How can we interpret codal provisions and clauses in optimizing the mix for economy or to ensure durability also to efficiently use the properties of certain materials.
- Logics of concrete mix proportioning for various conditions.
- Basic Steps under proportioning as governed by different codes
Learning outcomes
- The programme allows gaining knowledge on material selection properties of Fine aggregate, Coarse aggregate and cement.
- The participants will get hands-on practice in mix design calculations using the code books.
- It will provide a pathway to the participants to do mix design by their own for any grades of concrete.
Organized by:
Department of Civil Engineering, Association of Civil Engineering Students ICI-DBIT Student Chapter, Department of Civil Engineering
In association with
ConCroc for Education
Er. ConCroc Nagesh Puttaswamy
Coordinated by
Mr. Raghavendra D, Assistant Professor & Er. Gobinath S, Assistant Professor