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

Define the design of piers and abutments erected in water, Define the Desig...

Define the Design of Piers and Abutments Erected in Water? All piers and abutments erected in water are generally designed to be protected from scour or erosion.  However, both

Transportation engineering, what is difference between stopping sight dista...

what is difference between stopping sight distance and overtaking sight distance

Concepts and definitions of thermodynamics, System A system (often cal...

System A system (often called a closed system) is any collectionof matter within a prescribed boundary, but no matter may enter or leave the system.  Note 1. That the bo

Explain about overhauling of level xing, Q. Explain about Overhauling of Le...

Q. Explain about Overhauling of Level xing? Each level crossing except those laid with PSC sleepers must be opened out and the condition of sleepers and fittings, rails and fas

Write definition of afflux and skew bridge, Write definition of the followi...

Write definition of the following - (i) Afflux. ( ii ) Free Board. ( iii ) Clearance. ( iv ) Via duct. ( v ) Skew Bridge ( vi ) Cause Way. ( vii ) Clear Span. ( v

Dam, how many types of drainage galleries and foundation treatment

how many types of drainage galleries and foundation treatment

Define concrete substruct - underwater inspection of bridges, Define Concre...

Define Concrete substruct - underwater inspection of bridges? Plain, reinforced, and pre-stressed concrete are used for construction of underwater elements. Since the majority

Most aggregate size advantage structures, Question Design of concrete struc...

Question Design of concrete structures, normally most aggregate sizes are adopted with scopes from 10mm to 20mm. Does an increase of most aggregate size advantage structures ?

Define storms - underwater inspection of bridge, Define Storms - underwater...

Define Storms - underwater inspection of bridge? Storms can have a detrimental effect on bridge substructure. The velocity and depth of water and debris carried increase in rel

Lagrange''s mean value theorem, Write some appplications of lagrange''s mea...

Write some appplications of lagrange''s mean value thorem

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