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

Inadequate pile founding level, Reasons of common occurrence of "inadequate...

Reasons of common occurrence of "inadequate pile founding level" in piles of piers The most severe load on piers usually is the horizontal load owing to berthing and mooring o

Define the term - pre- tensioning, Define the term - pre- tensioning It...

Define the term - pre- tensioning It is a method of prestressing in which tendons are placed, inside ducts or passages provided in concrete, after concrete gains sufficient str

Explain information processing and perception, Explain Information Processi...

Explain Information Processing and Perception - Driver Performance The time required to respond successfully to any driving situation, such as an emergency, involves four stage

What to do to improve the reliability of the test results, Explain clearly ...

Explain clearly with a neat sketch how you will verify the coefficient of permeability of a clay sample in the laboratory and derive the expression used to compute the permeability

Soil mechanics, Hi, i really need help to done my assignment i have done so...

Hi, i really need help to done my assignment i have done some part but in that case i need professional advice to finish my task. could you please let me know if you can help me. t

What is diaphragms in bridges, Q. What is Diaphragms in bridges? Diaph...

Q. What is Diaphragms in bridges? Diaphragms in bridges The principal function of diaphragms is to provide stiffening effect to deck slab in case bridge webs aren't situat

Explain the angle of wall friction, A retaining wall 4.5 m high with vertic...

A retaining wall 4.5 m high with vertical back supports a backfill with horizontal surface. The unit weight of the fill is 18 kN/m 3 and the angle of internal friction is 36°. The

Application of bitumen to driven piles, Q. Application of bitumen to driven...

Q. Application of bitumen to driven piles? In a certain area of H-piles subjected to ground water table fluctuation, painting is occasionally applied on the surface of H-piles

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