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

Process of installation of elastomeric bearing, The process of installation...

The process of installation of elastomeric bearing differs in case of precast vis-a-vis cast-in-situ girders. For precast girders, the bearing may be fixed to the underside of the

Theorem of three moments, Theorem of three moments: You have been intr...

Theorem of three moments: You have been introduced to the analysis of one of the important class of structures, namely Statically Indeterminate Structures. You have been intro

Solid block -calculating for design mix, Good evening sir, solid block''s d...

Good evening sir, solid block''s design mix calculated generally please explain and derive .

RISE AND FALL METHOD, WHAT IS THE PURPOSE OF USING THE RISE AND FALL METHOD...

WHAT IS THE PURPOSE OF USING THE RISE AND FALL METHOD IN LEVELLING?

Show the functions of hydraulic jump, Q. Show the Functions of hydraulic ju...

Q. Show the Functions of hydraulic jump? The usage of hydraulic jump in hydraulic engineering isn't uncommon and creation of such jumps has numerous purposes:  (i)  Its majo

How to calculate the total loss of prestress, How to calculate the total lo...

How to calculate the total loss of prestress As a general guide, it may be taken that total loss of prestress may be in the range of 20 to 25 percent of the initial prestress,

Som, Maximum thermal stress in circular tapering section is

Maximum thermal stress in circular tapering section is

Local vehicle parapet strong enough to contain vehicles, Q. Local vehicle p...

Q. Local vehicle parapet strong enough to contain vehicles? Majority of local parapets are 1.1m high in addition they are designed to resist impact from a 1.5ton car moving at

What do you understand by pressure line, What do you understand by Pressure...

What do you understand by Pressure line If we determine the locations of resultant force at various sections of a pre-stressed beam, as in Example, we can draw a curve showing

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