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

Estimating movement for movement joints, Question Should reversible moi...

Question Should reversible moisture movement be taken into account in estimating movement for movement joints ? Answer Size of concrete is affected by changes in dist

Define safety precaution for underwater inspection of bridge, Define Safety...

Define Safety Precautions for Underwater Inspection of Bridge? The working agency should have its own diving safety manual, which should be strictly followed. This manual shoul

Movement accommodation factor for joint sealant, Movement accommodation fac...

Movement accommodation factor is normally specified by manufacturers of joint sealants for designers to design dimension of joints. It is stated as the total movement that a joint

State an expression for zero air-void line, State an expression for 'zero a...

State an expression for 'zero air-void line' and illustrate the line for a specific gravity of 2.65. What are the various factors that affect the compaction of soil in the field

Theodolote, List out the permanent adjustments of dumpy level.

List out the permanent adjustments of dumpy level.

State the total rankine active thrust per metre run, A wall with a smooth v...

A wall with a smooth vertical back 9 m high ropes a purely cohesive soil with  c = 10 kN/m 2 and γ = 18 kN/m 3 . State the total Rankine active thrust per metre run, the positi

Purpose of using capping layers in pavement construction, Q. Purpose of usi...

Q. Purpose of using capping layers in pavement construction? When California Bearing Ratio of subgrade is checked to be below a specific percentage (for example 5%), a capping

Rcc, difference between RCC and RBC

difference between RCC and RBC

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