Pulverized fly ash as cement replacement, Civil Engineering

Assignment Help:

Q. Pulverized fly ash as cement replacement?

Pulverized fly ash is a type of pozzolans. It is analuminous or siliceous material that possesses no binding ability by itself. When it's in finely divided form, they may react with calcium hydroxide in the presence of moisture to form compounds with cementing properties.  

At the time of cement hydration with water, calcium hydroxide is formed and it is non-cementitious in nature. Though when pulverized fly ash is added to calcium hydroxide, they react to yield calcium silicate hydrates that is highly cementitious. This leads to improved concrete strength. This explains how pulverized fly ash may be used as cement replacement.


Related Discussions:- Pulverized fly ash as cement replacement

Disparity between working stress and limit state approach, Question Wha...

Question What is key disparity between working stress approach and limit state approach ? Answer Working stress approach, service loads are used in whole plan and st

Trusses design, does the truss pitch relate to the building''s height?

does the truss pitch relate to the building''s height?

Underwater problems in bridge construction, Q. Underwater problems in bridg...

Q. Underwater problems in bridge construction? The major bridge construction materials are steel and concrete. In the past, stone and brick masonry, with lime mortar as binding

Explain the steady and uniform flow, Explain the Steady and Uniform Flow ...

Explain the Steady and Uniform Flow Steady flow: Flow quantity does not change over time. Uniform flow: The slopes of the energy grade line S = dE/dL, the hydraulic grade li

Principle of adding cooling pipes, Question What is key principle of a...

Question What is key principle of adding cooling pipes or yet using cold water for concrete in concreting operation? Answer These methods aim at reducing placing tem

Backward and forward curved vanes in pumps, Backward curved vanes vs. forwa...

Backward curved vanes vs. forward curved vanes in pumps  Power of a pump is related to discharge as follows: Power = k 1 Q + (k 2 Q 2 / tan A) Where K 1 and K 2 are

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