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

Consistency Test of Cement

-
Normal Consistency- It is defined as the percentage of water by weight of cement which produces a consistency which permits a plunger of 10 mm diameter to percentage up to a depth of 5 mm to 7 mm above the bottom of vicat's mould.

Image Source:-www.civilread.com



Important Terms:-

(i) Diameter of Plunger=10 mm

(ii) Firstly, 25% weight of water is used which will mix with cement. Then used 26%, 27% and more.

Image Source:-civilblog.org


(iii) Repeat this procedure till reading not comes 5 mm to 7 mm.

(iv) Entire mixing and filling of the mould including testing should be completed within 3 to 5 minutes.

Test Procedure:-


Image Source:-aust.edu

Also Read: Elongation Test of an Aggregate

(i) Take 400 gm of cement sample.

(ii) 25% water i.e. 400X25/100=100 gm of water is added and mix properly.

(iii) After mixing it is kept in mould and also kept on the vicat apparatus surface.

(iv) 10 mm diameter needle will just touch on the surface of the mould and then freely fall. Suppose reading comes=10 mm. So, it will required to repeat the test till result will not comes in the range of 5mm to 7 mm.

Image Source:-civilread.com


(v)  Now increase the % of water. So, taken 26% (104 gm) of water and again filled in mould and again test procedure will repeat. If reading will comes=7 mm

(vi) Normal Consistency=Wt. of water/Wt. of cement X 100

                                       = 104/100 X 100
                               
                                       = 26 %





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