Do steel bridges undergo excessive deflection in hot wheather?

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Does A corroded steel part effect the entire concrete structure eventually ?

06 July 2018 938 5 View

How to adapt building and cities for climate change?

06 July 2018 9,448 4 View

Would you prefer steel or concrete bridges if both are suitable for the span ?

The choice of material in bridges are often steel or RC concrte which one would you prefer ?

06 July 2018 9,208 6 View

What do you suggest of the following to increase the punching shear of a RC slab with the reason?

1_ increasing the slab thickness 2- using drop panel 3- using shear reinforcement 4- increasing the concrete compressive strength:

06 July 2018 514 11 View

Which method of the followings would you prefer to strengthen R.C.columns and why?

1- steel jacket 2- CFRP jacket 3- GFRP jacket 4- Enlarging the section concrete & steel cage?

06 July 2018 9,204 2 View

What are the applications of nanotechnology in civil engineering and structural engineering?

what are the applications of nanotechnology in civil engineering and structural engineering?

06 July 2018 3,120 5 View

What are the applications of concrete fillled steel tube truss.?

06 July 2018 6,009 3 View

What precautions should be used when pouring concrete in hot weather ?

Placing Concrete in Hot Weather Caution needs to be applied when placing concrete in hot weather what are they?

06 July 2018 4,134 14 View

what are the common Methods for Repair of Small and Large Cracks in Concrete?

06 July 2018 7,506 2 View

Modelling of concrete deck on CFST Beams?

HOW TO Model concrete deck on CFST Beams?

05 June 2018 1,520 2 View

How two melting peaks in DSC of polypropylene can be merged into one crystallization peak?

The figure shows DSC cooling (blue) and 2nd heating (green) curves (step: 10 K/min) for a commercial sample supplied as Atactic Polypropylene (APP). The heating curve illustrates two major...

03 March 2021 5,857 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

I need to accelerate corrosion in steel parts that are used in a salt-water environment. Is there a technique for doing so?

I have a structure that employs d-ring swiveling tie-downs that corrode during use and become "frozen". I have sample swivel assemblies that I wish to corrode to see if I can free them using one...

01 March 2021 3,739 3 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

Necessary tube lenght to cool Natural gas in a dry-ice cooling bath?

I have a tank which contains natural gas at 250 Bar and 293 Kelvin. I want to cool the gas in a dry-ice cooling bath to about 195 Kelvin. The gas will flow in a copper-tube through the bath with a...

27 February 2021 8,128 1 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View