Define cast iron substructure - inspection of bridge, Civil Engineering

Assignment Help:

Define Cast iron substructure - Inspection of bridge?

Cast Iron also has the problem of corrosion due to atmosphere, which is similar to that of steel. However, in acidic or brackish water graphitic corrosion occurs. In this case, parts of corrosion products are formed underneath the normal surface layers. There is little visual evidence of the attack since the original dimensions and shape of the component are retained.

However, the corroded metal, bound together by graphitic ions, which are part of original make up of grey cast iron, is soft, porous and of very low mechanical strength. It can easily be cut with a knife or a light chisel and if lightly tapped with a hammer does not ring like a sound metal. This process is called graphitisation and is usually a slow process.


Related Discussions:- Define cast iron substructure - inspection of bridge

Plane table surveying, plane table surveying is used commonly to survey sma...

plane table surveying is used commonly to survey small areas because

Building plan, the conventional symbol used in building plan

the conventional symbol used in building plan

Proctor test for GSB material, what is the procedure for gsb proctor test f...

what is the procedure for gsb proctor test for matrial sampling for lab density

How do you maintain water pressure, If you have water pressure and wish to ...

If you have water pressure and wish to handle it, do not cause flow in the line, which will decrease pressure because of friction. To keep pressure up, decrease friction by increas

Accuracy and range - angle measurement, Accuracy and Range - Angle measurem...

Accuracy and Range - Angle measurement: Accuracy and Range:-Angle measurement:-Most modern total station instruments measure angles by means of electro-optical scanning of ext

Briefly explain about artificial cut offs, Q. Briefly explain about Artific...

Q. Briefly explain about Artificial cut offs? Alignment of a cut off is chosen so that approach and exit ends remain more or less tangential to the river course. A cut off can

Influence line diagram, how to calculate when moment is present in the stru...

how to calculate when moment is present in the structure by influence line diagram

How to calculate the coefficient of permeability, The discharge of water co...

The discharge of water collected from a constant head permeameter in a period of 15 minutes is 500 ml. The internal diameter of the permeameter is 5 cm and the measured difference

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd