Tag Archives: construction

Why a concrete cube is NOT tested when wet ?

Dear Friends ,

Have you ever wondered on this issue ?

” What happens if we test a wet cube in a compressive strength testing machine?”

Would you not like to find out what shall heppen if we do not dry the concrete specimen after 28 days and just test it under the same wet condition ?

You can find out the correct answer at this link :


By the way , how many of you have actually seen the concrete cubes being cast at site ?

Not seen ?

Well, here is the link for you to watch the cubesbeing cast at site for testing :

Concrete cubes being cast 

After the 6 cubes are cast on the day of the concrete, 3 cubes are tested on the 7th day      [ Should not give a strength less than 65% of the characterstics strength ] and remaining 3 cubes are tested on the 28th day.[100% of characterstics strength].

Would you like to see how the concrete cubes are actually tested in the laboratory ?

Here is the link for you :

Testing of concrete cubes :  

Hope you are enjoying reading this blog.

If you have any suggestions , please write to me using this form :

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Great videos which you shall like…

Hello Friends ,

Hope you are all doing fantastic.

Thank you so much for your fabulous response to my appeal.

You have started subscribing to my you tube channel and this is the result as on date :


Those of you who have not yet subscribed to my You tube channel can now subscribe using this link here :

Santosh Kulkarni

Today , let me share with you ready links for certain specific videos which shall be of great interest to you :

  1. Checking of plumb before casting : In this video , I have explained how to check the plumb on the form work for the RCC column which is to be cast . In the same video , the exact steps during the de-shuttering of the RCC column are also explained. Please have a look at this video at this link :                                                                      Plumb Checking 
  2.  RCC matt foundation : This video , I have explained the basic composition of a RCC matt foundation. The box type waterproofing, PCC and RCC raft have been explained. the rebars have been shown in detail here :                                                         RCC matt foundation  part 01 
  3. In the second part of this video , the completed matt foundation has been explained. You can also see the tie beams here , which are important for any earthquake resistant building :

          RCC matt foundation part 02

You can visit these links at your convenience and take a further step towards learning.



Video for fresh engineers

Hello friends ,

Wish you a very Prosperous and Happy new year 2018.

On the first day of this new year, a new video has been posted for the fresh engineers.

This is the first of a series of such posts to be published in due course.

This video is in Marathi and soon I intend to publish this content also in Hindi and English.

Have a look at this video :

By this time you must have subscribed to my You tube channel. Right ?
if not, please do it immediately so that you dont miss out the fresh videos.
Thank you so much
Enjoy and grow in the new year 2018.

New Webinar on AAC blocks

Hello Friends,

Good afternoon.

You can view this Free webinar on AAC blocks on this link :

AAC blocks { Hindi }

This has been narrated in Hindi so that many of you can understand the subject. This is an introduction to the topic and if you like this Webinar,then I can prepare the advanced video on AAC blocks and post it for you.

Hope by this time you must have subscribed to my You tube channel.

If not, why not do it now ?

You Tube channel

Thank you so much once more for the great response you have given to this blog so far.

You can also suggest new topics for the blog and also for the Webinars.




Please…Please Subscribe to my You tube channel for more videos.

Hello Friends ,

Good Morning.

You are already following this blog. Everyone of you need to be congratulated for this decision. You are all interested to acquire further knowledge in Civil Engineering.

Recently I have uploaded interesting videos for you.


For example :

Cutting Length of a Footing Bar  [ Marathi ]

How to find ratio from the grade  [ Hindi ]

How to calculate materials in concrete [ Hindi ]

These videos have been specially made in Hindi and Marathi as I have seen that some students do have difficulties in understanding the English.

Even for such students , there is a special video on the :

Importance of English at sites 

You would like to see more of such videos. Right ?

Then do one small effort today.

Please go to this link and subscribe to my channel :

Santosh Kulkarni


There are 382 subscribers for my channel on You tube .

At this blog, there are 1013 subscribers.

Just imagine, if each one of you subscribe to my You tube channel , this shall make it a whooping 1013+382 =1395 subscribers.

So the only appeal to you today is just go to the You tube channel and subscribe 

Let us maximize the subscription in next few days.

On 1st Jan 2018 , this image should change :


It should read 1500 subscribers.

So whay are you waiting guys , just click on this link and subscribe.

In case you would like to see videos on particular topics in Construction , do let me know through this form here :

Thank you so much

Happy new year 2018 in advance.


Free Video on Cutting Length

Hello Friends ,

Each one of you understand the importance of the Reinforcement in RCC. Right ?

The detailing of the reinforcement requires that we find out the cutting lenght of the individual bars.

This is a video in Marathi which shall explain in a very simple language what are the steps for finding out the cutting length of a footing bar.

You can watch this short video [ 8 Min ].

Here is the link for you :

Cutting Length 

Do let me know your comments on this video.

If you would like to enjoy the  video sessions on other topics of civil engineering , please do let me know.

You can use this form here.

Thank you so much.


Free Video for you on Concrete. [Grade from Ratio and vice versa]

Hello Friends ,

Enjoying the day ?

Every construction person needs to know these :

  1. How to find out the grade of concrete if the ratio is known
  2. How to find the ratio if the grade is given.

Right ?

Just spend 12 minutes of your busy time in watching the following video and you shall know the trick. Learn through the simple to follow steps and master the technique.

Concrete : Grade to Ratio 

By the way , if you want to know more knowledge on construction , why not join the

On Line Courses for Civil Engineers ?

You learn many difficult topics from the comfort of your home.

easy to follow video leactures are available in each module.

Write to me today itself for more details :


You can use the form here for directly connecting with me.