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 ordered quantity.  Image-Hydro Test (Pressure Release) (Photo Credit: Ritesh Raj)  
Post a Comment

Aggregate Impact Value Test

-

 

Image Source:Indiamart.com

Aggregate Impact Value is an important test of aggregate. Before starting any mix design and making concrete, we will done aggregate impact value test. From this test we know about the toughness of an aggregate. After apply sudden impact on aggregate, then we got the impact value of an aggregate.

Important Terms:-

(i) Weight of Impact value testing machine=45 to 60 kg.

(ii) Cylindrical Steel cup, Dia.=75 mm, Depth=50 mm

(iii) Testing cup, Dia.=102mm, Depth=50 mm

(iv) Fall(means height)=380+-5mm

(v) Used 12.5 mm and 10 mm-GI Sieves and another 2.36 mm-Brass Sieves


Image Source:Indiamart.com

Recent Post: Elongation Test of an Aggregate

Test Procedures:-

(i) Taken some sample of aggregate and used 12.5 mm sieve for passing and 10 mm for retaining.(Note-Sieving will always in circular motion.)

(ii) Firstly passing materials of aggregate from 12.5 mm IS sieve and then 10 mm IS Sieve is used. The material which will retained on 10 mm sieve will kept in another pan.

(iii) Retained weight of material will kept in oven at 1100C (1000C to 1100C) for 4 hours.

(iv) After 4 hours sample is removed from oven and make cold in atmosphere.

(v) Now, the steel cup is kept on weight balance and it will tier.


Image Source:Indiamart.com

Also Read: Important terms on the basis of IS Codes

(vi) Steel cylinder is filled through aggregate, which was taken from oven. It will filled in 3 layers and each layer temped at 25 times.

(vii) Now, weight of cylinder=357.7 gm. and it will transferred in testing cup and also it will temped in a single layer at 25 times.

(viii) Tighting the both ends of testing cup and will applying 15 blows and also consider it will applying continuous and after 15 blows it will lock at upper portion.

(ix) Loose the screw and taken sample.

(x) Now sieve the taken sample through 2.36 mm brass sieve and at bottom of 2.36 mm sieve we will apply a pan/lid and then start sieving in a circular motion.

(xi) Now, a pan is kept at weight balance and tier it. The passing material weight will taken. Weight comes=25.3 gm


Image Source:Civilblog.org

Also Read: Flakiness Test of an Aggregate

Format (Sample):-

A=Weight of oven dried sample 

   =357.7 gm

B=Weight of fraction passing

   =25.3 gm (2.36 mm sieve)

Aggregate Impact Value=B/A * 100

                                       =25.3/357.7 *100

                                       =7.07 %  

   

Image Source:Indiamart.com

   Also Read: Civil Engineering Related Important Questions with Answers

Note:-

As per 383:2016, Page No.-4, as an alternative to 5.4.1, the aggregate impact value may be determined in accordance with the method specified in accordance with the method specified in IS 2386(Part-4).The aggregate impact value shall not exceed the following values:-

(a.) For aggregates, to be used in concrete for wearing surfaces, (Such as runways, roads, pavements, tunnel lining carrying water, spillways and stilling basins)=30 %

(b.) For aggregates to be used in concrete other than for wearing surfaces=45 %.

Image Source:Constructiontechnology.in



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 ordered quantity.  Image-Hydro Test (Pressure Release) (Photo Credit: Ritesh Raj)  
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 use of photovol
Read more