What do you mean by ozone test, Civil Engineering

Assignment Help:

Q. What do you mean by Ozone Test?

Some research and studies determined that the ozone test was unnecessary as this affects only the surface layer.  In un-stretched rubber, ozone degradation is confined to a thin surface layer, typically 0.5  µ. Ozone cracks develop at right angles to the tensile strain and they degrade rubber's tensile strength and may also initiate fatigue growth that ultimately leads to failure of rubber products.  Because cracks only occur in regions where tensile stresses are induced, they are unable to penetrate very far into objects, which are under compression.  In bearings, the growth of cracks ceases close to the surface because cracks quickly encounter compressive rather than tensile stresses. Therefore, it has been contended that ozone damage is a serious concern in thin-walled products, but not in those bulky products like bearings. Contrarily there is a harmful effect because the manufacturers use anti ozanant waxes to protect against ozone attack.  This viscous layer of wax is responsible for a significant number of serious slipping problems where the bearings 'walked-out' of the support area.


Related Discussions:- What do you mean by ozone test

Couple, Properties of a couple

Properties of a couple

Discuss about the post-tensioning systems, Discuss about the post-tensionin...

Discuss about the post-tensioning systems In most of post-tensioning systems, when the cable is tensioned and the jack is released to transfer prestress to concrete, the fricti

Plane table surveing, in plane table surveying which activity is done first...

in plane table surveying which activity is done first whether centering or levelling?

List the significant engineering classification system, How do you distingu...

How do you distinguish among clay and silt in the field? State the purpose of identification and categorization of soils. List any three significant engineering classification syst

Shear strength of concrete., why do we use effective depth ''d'' in calcula...

why do we use effective depth ''d'' in calculating the shear capacity of uncracked Concrete beam. If it is uncracked, why cant we use the full depth ''D''.

Keywords related to modern trends in transportation, Keywords related to Mo...

Keywords related to Modern Trends in Transportation: Exclusive Bus Lane :           A lane reserved exclusively for buses. High Capacity Bus System            :

Design of flexible pavements - road pavements, Design of Flexible Pavements...

Design of Flexible Pavements: The design of flexible pavements is done by the CBR method. The CBR test, described further, gives an indication of the supporting power of the

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