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

Chain, describe and sketch a survey chain

describe and sketch a survey chain

Grouted or penetration macadam, Grouted or Penetration Macadam: This ...

Grouted or Penetration Macadam: This is a specification where the binder is sprayed on a compacted layer of stone aggregates and is allowed to penetrate and bind the aggregat

Necessity of air voids in bituminous pavement, Q. Necessity of air voids in...

Q. Necessity of air voids in bituminous pavement? If the presence of air voids is too high, it results in an increase of permeability of bituminous pavement. This enables the f

Binders - cement, Binders : Cement: Cement as a Binder Cement...

Binders : Cement: Cement as a Binder Cement is one of the main ingredients of concrete. When cement sets (with the addition of water), it forms a paste and binds the

Estimate the size estimating the rcc structures, PART - A 1.  Can you e...

PART - A 1.  Can you enumerate the benefits of individual wall method of estimation? 2.  Estimate the single room of size  3m x 4m x height 3m  using individual wall method?

Surveying, How to read verniers and main scale readings on theodolite of 10...

How to read verniers and main scale readings on theodolite of 10"?

Surveying, What is the least count of prismatic and surveyor compass

What is the least count of prismatic and surveyor compass

Digit of cells for concrete box girder bridges, Question How does an engine...

Question How does an engineer determine digit of cells for concrete box girder bridges ? Answer If depth of a box girder bridge exceeds 1/6 or 1/5 of bridge width, then it is o

Designing sewer pipes, Question While designing sewer pipes , why vitr...

Question While designing sewer pipes , why vitrified clay pipes commonly is used for pipe size less than 600mm still as precast concrete pipes with PVC lining is used for pipe

#title., Ask question #Minimum 100 words accepted2812539076# you

Ask question #Minimum 100 words accepted2812539076# you

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