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related to concrete

 
This forum is locked: you cannot post, reply to, or edit topics.This topic is locked: you cannot edit posts or make replies. Thank Post    www.sefindia.org Forum Index -> E-conference on Durability of Concrete - Feb 27 to March 11 - 2012
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DIPESH
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PostPosted: Wed Mar 07, 2012 5:16 pm    Post subject: related to concrete Reply with quote

Dear Sir,

          Is stone dust is used as a replacement of sand (either partially replaced or fully replacement) in the concrete.

Dipesh shah

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sh_s
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PostPosted: Thu Mar 08, 2012 7:34 am    Post subject: related to concrete Reply with quote

Dear Dipesh,
 
Many research works have been done in this area of replacing stone dust with sand. You can referer a paper entitled
 “Performance of Concrete with Quarry Dust as fine aggregate “ – An  Experimental Study, by
M. C. Narasimhan, B. T. Patil and Shankar H. Sanni, Civil Engineering and Construction Review, pp. 19-24, Sept. 1999.
 


 
On Thu, Mar 8, 2012 at 2:36 AM, DIPESH <forum@sefindia.org (forum@sefindia.org)> wrote:
Quote:
  Dear Sir,

          Is stone dust is used as a replacement of sand (either partially replaced or fully replacement) in the concrete.

Dipesh shah








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suraj
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PostPosted: Thu Mar 08, 2012 10:12 am    Post subject: Stone Dust In Concrete Reply with quote

Stone Dust In Concrete

  1. Stone dust is procured from crushers & therefore, may not be avilable at all locations but, it can be used & has been used on many projects.
  2. In past era, river sand (fine sand) was used. Pit sand (coarse sand) was used for concrete. For mortar (coarse sand) was used. For plaster (coarse + fine sand was used)
  3. In gulf, generally, dune sand was included as a partial replacement of cement in concrete. This was to obtain consistent concrete but, now it has been replaced by SCM PFA since, PFA allows good workability to concrete.
  4. Dust parent material is stone or rocks & therefore, it is strong enough & clean. It allows acceptable combined grading of aggregates. Other authors have already provided explanatory notes on this natural material.
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francis chacko
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PostPosted: Thu Mar 08, 2012 12:22 pm    Post subject: stone dust Reply with quote

IF WE USE THE STONE DUST THE SIEVE ANALYSIS MUST BE MADE TO ASCERTAIN THE GRADING AS PER IS SPECIFICATION.SECONDLY IT MUST BE CHECKED FOR THE LIMIT OF DELETERIOUS MATERIALS PERCENTAGE.THIS SAND SHALL ALSO BE WASHED BEFORE SELLING BY THE CRUSHER OWNERS.
MOST OF THE STONE QUARRIES ARE SUPPLYING IN THE PRETEXT OF M SAND AND THE QUALITY IS VERY POOR. IN THE ABSENCE OF SUFFICIENT QUANTITY OF RIVER SAND THE DUST PRODUCED FROM THE CRUSHERS ARE BEING SOLD AS M SAND

HENCE PROPER CHECK MUST BE MADE BEFORE PURCHASING MSAND

K C FRANCIS
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B.V.Harsoda
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PostPosted: Thu Mar 08, 2012 12:51 pm    Post subject: Re: related to concrete Reply with quote

Dear Er. Dipesh,

Durability  of concrete  increase  with  the use of Quarry Rock Dust .In comming Days natural sand sources are decreases and rates  are increases, so the use of Quarry rock dust may be prove useful considering Economy and Durability.Various Durability Studies carried out with BASALT ROCK DUST & MARBLE SLUDGE POWDER are Highlighted Previously in this on going e-Conference at below link:

http://www.sefindia.org/forum/viewtopic.php?t=11667

Here is one more paper link:-

STRENGTH APPRAISAL OF ARTIFICIAL SAND AS FINE
AGGREGATE IN SFRC

Mahendra R. Chitlange1 and Prakash S. Pajgade2
1
Department of Applied Mechanics, Government Polytechnic, Aurangabad. Maharashtra, India

2Department of Civil Engineering, Prof. Ram Meghe Institute of Technology and Research, Badnera, Amravati, India


http://www.arpnjournals.com/jeas/research_papers/rp_2010/jeas_1010_396.pdf



Regards
B. V. Harsoda


DIPESH wrote:
Dear Sir,

          Is stone dust is used as a replacement of sand (either partially replaced or fully replacement) in the concrete.

Dipesh shah

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tsriharivaishu
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PostPosted: Thu Mar 08, 2012 4:13 pm    Post subject: related to concrete Reply with quote

Dear sirs, can we use stone dust as a replacement to sand for cc roads?Sent from BlackBerry® on Airtel
From: "francis chacko" <forum@sefindia.org>
Date: Thu, 08 Mar 2012 17:52:36 +0530
To: <econf@sefindia.org>
ReplyTo: econf@sefindia.org
Subject: [ECONF] Re: related to concrete

     IF WE USE THE STONE DUST THE SIEVE ANALYSIS MUST BE MADE TO ASCERTAIN THE GRADING AS PER IS SPECIFICATION.SECONDLY IT MUST BE CHECKED FOR THE LIMIT OF DELETERIOUS MATERIALS PERCENTAGE.THIS SAND SHALL ALSO BE WASHED BEFORE SELLING BY THE CRUSHER OWNERS. MOST OF THE STONE QUARRIES ARE SUPPLYING IN THE PRETEXT OF M SAND AND THE QUALITY IS VERY POOR. IN THE ABSENCE OF SUFFICIENT QUANTITY OF RIVER SAND THE DUST PRODUCED FROM THE CRUSHERS ARE BEING SOLD AS M SAND  HENCE PROPER CHECK MUST BE MADE BEFORE PURCHASING MSAND  K C FRANCIS
        --

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B.V.Harsoda
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PostPosted: Thu Mar 08, 2012 4:57 pm    Post subject: Reply with quote

Dear Er. Dipesh,
You can get all answers about your questions for manufactured sand from
Guide to the Specification and Use of Manufactured Sand in Concrete
by Cement Concrete & Aggregates Australia

Contents:-
Preface
1 Introduc tion
1.1 Scope
1.2 What is manufactured sand?
1.3 Difference between manufactured sand and crusher dust
1.4 Blending with natural sands
2 Properties of Manufactured Sand
2.1 Geological and mineralogical
2.2 Physical
2.3 Test methods suitable for manufactured sand
2.4 Effects of manufactured sand on the properties of concrete
3 Specification for manufactured sand as concrete fine aggregate
Scope
Definitions
General
Sampling
Testing
Density and water absorption
Particle size distribution
Particle shape
Deleterious fines
Durability
Alkali-reactive materials
Impurities
Performance criteria for a fine aggregate blend including manufactured sand for use in concrete
The use of manufactured sand in special-purpose concrete

Source link:-
http://www.concrete.net.au/publications/pdf/GuideManSand.pdf

Rgards
B. V. Harsoda





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Dr. N. Subramanian
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PostPosted: Fri Mar 09, 2012 6:19 am    Post subject: Re: related to concrete Reply with quote

Sure!
Best wishes
NS
tsriharivaishu wrote:
Dear sirs, can we use stone dust as a replacement to sand for cc roads?Sent from BlackBerry® on Airtel
From: "francis chacko" <forum@sefindia.org>
Date: Thu, 08 Mar 2012 17:52:36 +0530
To: <econf@sefindia.org>
ReplyTo: econf@sefindia.org
Subject: [ECONF] Re: related to concrete

     IF WE USE THE STONE DUST THE SIEVE ANALYSIS MUST BE MADE TO ASCERTAIN THE GRADING AS PER IS SPECIFICATION.SECONDLY IT MUST BE CHECKED FOR THE LIMIT OF DELETERIOUS MATERIALS PERCENTAGE.THIS SAND SHALL ALSO BE WASHED BEFORE SELLING BY THE CRUSHER OWNERS. MOST OF THE STONE QUARRIES ARE SUPPLYING IN THE PRETEXT OF M SAND AND THE QUALITY IS VERY POOR. IN THE ABSENCE OF SUFFICIENT QUANTITY OF RIVER SAND THE DUST PRODUCED FROM THE CRUSHERS ARE BEING SOLD AS M SAND  HENCE PROPER CHECK MUST BE MADE BEFORE PURCHASING MSAND  K C FRANCIS
        --

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lkjain.ngp
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PostPosted: Fri Mar 09, 2012 2:18 pm    Post subject: related to concrete Reply with quote

Dear sir,
 
"Stone dust" is no way "manufactured sand". Part replacement 10 to 15% of sand may be attempted with trials & tests. Issue is to keep options while achieving concrete properties required.
 
L. K. JAIN


 
On 8 March 2012 02:36, DIPESH <forum@sefindia.org (forum@sefindia.org)> wrote:
Quote:
  Dear Sir,

          Is stone dust is used as a replacement of sand (either partially replaced or fully replacement) in the concrete.

Dipesh shah








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B V REDDY
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PostPosted: Thu Mar 15, 2012 3:06 pm    Post subject: related to concrete Reply with quote

Definitely, stone dust is a replacement for sand subjected to properties such as grain size distribution ,specific gravity etc are satisfied, However it is to be confirmed by lab testing
with regards
bvreddy

On Thu, Mar 8, 2012 at 2:36 AM, DIPESH <forum@sefindia.org (forum@sefindia.org)> wrote:
Quote:
           Dear Sir,

          Is stone dust is used as a replacement of sand (either partially replaced or fully replacement) in the concrete.

Dipesh shah
     



     



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