Coating on concrete – complete im-permeability to moisture, Civil Engineering

Assignment Help:

Q. Coating on concrete – complete im-permeability to moisture?

In designing protective coating on concrete structures, stoppage of water ingress by the coating is generally required. Since chloride ions frequently diffuse into concrete in solution and cause deterioration of concrete structures, prevention of water transmission into coating certainly helps to protect concrete structure. Though if water gets behind the coating from some means and becomes trapped, its effect may not be desirable. Firstly, vapour pressure will be developed behind surface treatment and this leads to loss of adhesion and eventual peeling off of coating. Furthermorewater creates a suitable environment for mould growth on concrete surface.

As a matter of fact surface treatment must be so selected that it's impermeable to liquid water though it is permeable to water vapour. This 'breathing' function enhances the concrete to lose moisture through evaporation and reject uptake of water at the time of wet periods.


Related Discussions:- Coating on concrete – complete im-permeability to moisture

Classification of timber based on mode of growth, Classification Based on M...

Classification Based on Mode of Growth: On the basis of mode of growth trees are classified as (a) Exogeneous and (b) Endogeneous (a) Exogeneous Trees: These trees grow outwa

Aggregate value, how to calibrate AGGREGATE IMPACT VALUE TESTING MACHINE

how to calibrate AGGREGATE IMPACT VALUE TESTING MACHINE

Soil Mechanics, What relationship between Atterberg limits and cohesion

What relationship between Atterberg limits and cohesion

#title.steel desogn, Tension memebers example for a two channel connected t...

Tension memebers example for a two channel connected to a gusset .find the tensile capacity

Calculate the cost to finance the construction project, A contractor is bid...

A contractor is bidding a construction project that will take 12 months to complete. The terms of the bid provide that the owner will pay the Contractor one lump sum at the end of

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