This is a close-up foto of grade 316SS butt weld. Does the foto reflect any weld defects/ poor quality/ inclusions etc etc?
Thanks for your support
Foto attached
Hi all
Attached here are 3 photos of stainless steel pipe (workshop fabricated) that have arrived on site. There appears to be from grinding areas(shiny)
Can anybody advise me for acceptance. What defects should i be looking out for?
Whether passivation has been carried out and how would I...
DN1200 RC storm water pipe lines test
Pipe test procedure will be modified to suit the design pressure of 60KPA which is less then the design test pressure, 90Kpa, of the RC pipes
Which is preferable?
and
how to decide if vacuum test or hydrotest?
Thanks to all
would like to know if the material to be used as backfill behind concrete structure is OK
Specification requirement
Specification for backfill material
a) Native Backfill - Excavated materials such as clay and muck are not suitable as backfill material. Others that are free from grass...
I would like to know if the material to be used as backfill behind concrete structure is OK
Specification requirement
Specification for backfill material
a) Native Backfill - Excavated materials such as clay and muck are not suitable as backfill material. Others that are free from grass...
Hello
A contractor is backfilling with excavated soil against a concrete structure. The backfill matarial has been approved by the designer. The designer requirement is laying and compacting the backfill max in 300mm layers . The height of fill is approx 6 m
The backfill contractor wants to...
I am seeking the best way to backfill between a concrete structure and the sloped cut
I have attached an approximate sketch. The requirement is compacting the backfill in layers not more than 300mm
The width of placment is approx 2m at the base and the height
The length of the backfill is...
Attached is a gradation report. I assume it may be sand / manufactured sand.Please confirm
Also advise if it can be used for pipe trench embedments
Thank you
All respected friends
A newly laid asphalted road has cracked longitudinally upto 10 m apprx so far. ( see attached photos)
There is no concavity observed
The road is inside an industrial facility with occasional medium sized trucks.
The subbase/ base / asphalt is about 10 months old...
The specification for pipe laying (DICL) states
The frequency of testing shall be one test at the spring line of the pipe for each 50 linear metres of pipe laid or part thereof.
The material shall be placed in the excavation up to the level of the pipe barrel and shall be tamped and rammed in...
