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Title: seminar eport on effect of cement replacement by silica fume and fly ash
Page Link: seminar eport on effect of cement replacement by silica fume and fly ash -
Posted By: poloman007
Created at: Thursday 05th of October 2017 04:54:16 AM
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please send full report and ppt on effect of cement replacement by silica fume and fly ash ....etc

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Title: project report in silica fume concrete
Page Link: project report in silica fume concrete -
Posted By: nileshmarathe
Created at: Thursday 05th of October 2017 04:54:43 AM
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Abstract
In 1980 a sidewalk was built at B cancour, Qu bec, with condensed silica fume concretes containing highly reactive aggregates. Eleven concrete mixes were used with cement quantities from 140 to 405 kg of cement per m3 and condensed silica fume substitutions varying from 10 to 40%. In spite of the great reactivity of the aggregates, the alkali-aggregate reaction is still under control. Microstructural studies of four particular concretes have been made after the first and third winters. No silicate gel has been observed in the two le ....etc

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Title: HIGH PERFORMANCE CONCRETE USING FUMED SILICA full report
Page Link: HIGH PERFORMANCE CONCRETE USING FUMED SILICA full report -
Posted By: ARAVIND11
Created at: Thursday 17th of August 2017 06:51:32 AM
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HIGH PERFORMANCE CONCRETE USING FUMED SILICA

INTRODUCTION

High performance concrete is a concrete having low water binder ratio. A value of 0.4 is suggested as boundary between usual concrete and high performance concrete.
It has high strength and durability. For high durability low permeability is required and to reduce permeability silica fume is used


EXPERIMENTAL STUDY

Materials
Cement
Water
Coarse aggregate
HRWRA

CONCLUSION

Mineral admixture such as fumed silica is an ide ....etc

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Title: silica fume concrete ppt
Page Link: silica fume concrete ppt -
Posted By: prashanthrao
Created at: Thursday 17th of August 2017 08:38:35 AM
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silica fume concrete ppt

Silica fume, also known as microsilica, (CAS number 69012-64-2, EINECS number 273-761-1) is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 nm. The main field of application is as pozzolanic material for high performance concrete.

It is sometimes confused with fumed silica (also known as pyrogenic silica, CAS number 112945 ....etc

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Title: silica fume
Page Link: silica fume -
Posted By: sreeja ms
Created at: Thursday 17th of August 2017 08:10:01 AM
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there is a full report on 'silica fume'. pls go through the following thread.

http://seminarsprojects.net/Thread-silica-fume-full-report ....etc

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Title: silica fume full report
Page Link: silica fume full report -
Posted By: pradeep1709
Created at: Thursday 05th of October 2017 04:16:03 AM
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SILICA FUME CONCRETE

INTRODUCTION

Silica fume is also referred to as micro silica or condensed silica fume but the term silica fume has been generally accepted
The addition of ultra fine particles in concrete improves strength of concrete
The optimum proportion of silica fume is found in between 20% and 25% by weight of concrete
Silica Fume when react with calcium hydroxide on hydration of cement produces calcium siicate hydrate which has good binding properties.

CHARACTERISTICS OF SILICA FUME


1 Physical Properti ....etc

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Title: silica fume concrete
Page Link: silica fume concrete -
Posted By: ashriashmi
Created at: Thursday 17th of August 2017 06:14:50 AM
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Silica fume is also referred to as micro silica or condensed silica fume but the term silica fume has been generally accepted. It is a by-product of manufacture of silica and ferrosilicon alloys from high purity quartz and coal in a submerged arc electric furnace. It is reported that the addition of ultra fine particle in HPC improves the strength of concrete. The optimum silica fume proportions in between 20% and 25% by weight of concrete. In it self silica fume does not have any binding properties, but it reacts with calcium hydroxide on hydr ....etc

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Title: report on effect of replacement of cement by fly ash silica flume
Page Link: report on effect of replacement of cement by fly ash silica flume -
Posted By: Ann Milan
Created at: Thursday 17th of August 2017 05:57:49 AM
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Abstract

This study presents an experimental study on self-compacting concrete (SCC) with two cement content. The work involves three types of mixes, the first consisted of different percentages of fly ash (FA), the second uses different percentages of silica fume (SF), and the third uses a mixture of FA and SF. After each mix preparation, nine cylinder specimens are cast and cured. Three specimens are cured in water for 28 days, three specimens are cured in water for 7 days, and three specimens are left in air for 28 days. The slump and V-fun ....etc

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Title: effect of cement replacement by silica fume and fly ash ppt
Page Link: effect of cement replacement by silica fume and fly ash ppt -
Posted By: [email protected]
Created at: Thursday 17th of August 2017 06:23:27 AM
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Sir,
I would be highly thankful if you could please send me the full report & PPT on the prescribed topic Effect of cement replacement by Silica fume and fly ash with latest journals.
Thanks .. ....etc

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Title: silica fume and its uses pdf
Page Link: silica fume and its uses pdf -
Posted By: malar2688
Created at: Thursday 17th of August 2017 08:27:20 AM
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Abstract
In 1980 a sidewalk was built at B cancour, Qu bec, with condensed silica fume concretes containing highly reactive aggregates. Eleven concrete mixes were used with cement quantities from 140 to 405 kg of cement per m3 and condensed silica fume substitutions varying from 10 to 40%. In spite of the great reactivity of the aggregates, the alkali-aggregate reaction is still under control. Microstructural studies of four particular concretes have been made after the first and third winters. No silicate gel has been observed in the two le ....etc

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