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[DIPESH]

Dear Sir,

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

Dipesh shah

Posted via Email

[sh_s]

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:

[suraj]

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 This was to obtain consistent concrete but, now it has been replaced by SCM PFA since, PFA allows good workability to concrete.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.

[francis chacko]

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

[B.V.Harsoda]

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. Chitlange^{1 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

[tsriharivaishu]

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
        --

Posted via Email

[B.V.Harsoda]

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

[Dr. N. Subramanian]

Sure!
Best wishes
NS

[lkjain.ngp]

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:

[B V REDDY]

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: