Important Points SOP (Standard Operating Procedure) During the Inspection of RCC NP4 Pipes

-
Image
Important Points SOP (Standard Operating Procedure) During the Inspection of RCC NP4 Pipes: -    Image-Hydro Test (Photo Credit: Ritesh Raj) (1.) Firstly, approved QAP will be checked.  (2.) ID marks should be marked on the inner and outer sides of pipes.  Image-ID Mark (Photo Credit: Ritesh Raj)  (3.) To check the inner and outer diameter of pipes.   (4.) Smooth finishing and before dispatch of RCC pipes cement slurry or grouting where required.   (5.) Load test is required for RCC pipes as per IS codes. It is different for each dia, of RCC pipes.  Image-Plate Load Test (Photo Credit: Ritesh Raj)   (6.) Concrete mix design checked and in which cement content, cement brand, and water-cement ratio should be checked.  (7.) The straightness test to be checked of RCC pipes through the straightness rods to collinear visible.   (8.) As per requirement 2% of hydro tests are to be checked as IS:458 of the total...
Post a Comment

Final Setting Time of Cement

-

 Final Setting Time of Cement

Vicat Apparatus (Image Source:civilengineeringnotes.com)

It is the time when cement loose their plasticity is called final setting time (or needle make to fail on impression on sample).

Important Points:-

(i) 5 mm dia. needle is used.

(ii) No movement should be done when mould placing for initial setting test to till final setting test.

Final Setting Time(Image Source:theconstructor.org)

Test Procedure:-

(i) Same mould is used, that was used in initial setting time test.

(ii) After 30 minutes frequency we will make free fall condition.

(iii) After sometimes mould will be hard and no any impression will make on it and its plasticity will be zero.

(iv) (Now, example) Mould placing time=8:25 A.M.

      Present time=11:30 A.M.

      Final Setting time=185 minutes


Note:-Always remember final setting time of cement will not more than 600 minutes (i.e. 10 hours) and initial setting time of cement will be minimum 30 minimum.


      

 

 Has this page been helpful to you? If yes, please mention in the comment box.




      Thanks for visiting this site.


Written By-
Ritesh Raj

Email Id-rajritesh.motiharirr@gmail.com

Comments

Post a Comment

If you have any suggestions and doubts please let me know.

Popular posts from this blog

"Sewer Network Analysis"

-
Image
The word sewerage is made from sewer. The word sewer indicates the usable water which is received from kitchen, bathroom and outfall from toilet/W.C. Every large or small city was held at sea, river and lake and it was planned at initial stage of the project planning, that the dirty water of homes and industries was dumped in that water source easily. Many years passed the dirty water from these utilities are dumped in the nearest source and that source water was make too poisons. Many aquatic life is survive in water and when dirty water is mixed with water source the biological cycle was affected and fishes and other animals population was decreases. Image Source:Pexels.com In that case population of human is also increases continuously and after that level of water source was decreases and we faced many problems continuously. Then sewer network is introduced. Outlet from all homes are connected to lateral lines means the water of kitchen, bathroom and water closet are co...
Read more

Important Points SOP (Standard Operating Procedure) During the Inspection of RCC NP4 Pipes

-
Image
Important Points SOP (Standard Operating Procedure) During the Inspection of RCC NP4 Pipes: -    Image-Hydro Test (Photo Credit: Ritesh Raj) (1.) Firstly, approved QAP will be checked.  (2.) ID marks should be marked on the inner and outer sides of pipes.  Image-ID Mark (Photo Credit: Ritesh Raj)  (3.) To check the inner and outer diameter of pipes.   (4.) Smooth finishing and before dispatch of RCC pipes cement slurry or grouting where required.   (5.) Load test is required for RCC pipes as per IS codes. It is different for each dia, of RCC pipes.  Image-Plate Load Test (Photo Credit: Ritesh Raj)   (6.) Concrete mix design checked and in which cement content, cement brand, and water-cement ratio should be checked.  (7.) The straightness test to be checked of RCC pipes through the straightness rods to collinear visible.   (8.) As per requirement 2% of hydro tests are to be checked as IS:458 of the total...
Read more

"Solar Power System"

-
Image
When the energy received by earth from the sun is known as “solar energy”. Solar energy is comes under renewable energy. Solar radiation is the utilized by the solar plates for further use. The working procedure of solar system is capture, convert and then distribution. Image Source:Pexels.com Solar system is categorized in two parts:- (1.)   Passive Solar: -   In this system the selected material have light dispersion properties and designing spaces that the circulate air naturally. This system reduces the need for alternative resourcs and generally focuses on demand side technologies. (2.)   Active Solar:- This system is based on photovoltaic modules (i.e. also known as photovoltaic panels) and collectors of solar thermal system to convert sun light into their useful output. Its increases the supply of energy. Image Source:Pexels.com Recent Post: Different energy sources Working Procedure:- In this system with the u...
Read more