[Bldg-sim] Mud phuska properties

Dr. Nader Chalfoun chalfoun at email.arizona.edu
Tue Nov 10 09:38:46 PST 2009


It is a typo, this is what I got from my connection in India:
-----------------------------------------
Dear Nader,

Hello. I am delighted to see your mail. Regarding this MUD PHUSKA there
are certain physical properties that are described in the Indian
Standard. As per Hnadbook on Functional Requirements Of Buildings(Other
than Industrial Buildings),Bureau of Indian Standards-SP:41(S&T)-1987,
following are the properties of Mud Phuska,

Density = 1622 kg/cubic meter
Thermal Conductivity = 0.519 W/m.K
Spoecific Heat capacity = 0.88 kJ/kg.K

Kindly let me know if this helps.
------------------------------------------

Nader

--------------------------------------------
Nader V. Chalfoun, Ph.D. LEED AP
Professor of Architecture
Director: The House Energy Doctor Program
http://houseenergydoctor.arizona.edu
Coordinator: Graduate Program on "Design and Energy Conservation"
Coordinator: Environmental Education Ph.D. Minor
Faculty on Global Change Ph.D. Minor

Address:
University of Arizona
College of Architecture and Landscape Architecture
1040 N. Olive St., Tucson, AZ 85721, U.S.A.
Phone: (520)621-6751    Fax: (520)621-8700


Quoting Deepak Agrawal <deepak0agrawal at gmail.com>:

> I think its a typo.
>
> water being approx 1000 kg/m3, mud phuska should be 1731 kg/m3. Which is
> also in the range of 1500-1900 for soil.
>
> Deepak Agrawal
> Deepak at vibyor.com
>
> On Mon, Nov 9, 2009 at 7:31 PM, Chip Barnaby <cbarnaby at wrightsoft.com>wrote:
>
>>  All,
>> Please check this info.  The quoted density is less than fiberglass.  Mud
>> phuska is a mix of clay and wood shavings (right?), so the density should be
>> > 500 kg/m3.  Solid wood is around 500, soil is 1500 - 1900.  The
>> conductivity and specific heat are more plausible.
>> Chip Barnaby
>>
>>
>> At 06:50 AM 11/9/2009, Meenakshi Sahu wrote:
>>
>> Dear Sanyogita,
>>
>> Please note down the following properties of mud phuska.
>>
>> Density = 1.731 kg/m^3
>> Thermal conductivity = 0.750 W/mK
>> Specific heat capacity = 0.88 kJ/kg-K
>> [Reference: SP 41, Handbook on functional requirements of building (Other
>> than industrial buildings), Part 1-4, Bureau of Indian Standard (1988)]
>>
>>
>> * *Regards,
>> Meenakshi.
>>
>> --- On *Mon, 9/11/09, sanyogita manu <sanyogitamanu at yahoo.com>* wrote:
>>
>> From: sanyogita manu <sanyogitamanu at yahoo.com>
>> Subject: [Bldg-sim] Mud phuska properties
>> To: bldg-sim at lists.onebuilding.org
>> Date: Monday, 9 November, 2009, 12:29 PM
>>
>> Hi
>>
>> I know its a long shot but does anyone know what are the thermal and
>> surface properties of Mud phuska? It is a typical Indian roof insulation. I
>> would be very grateful if I could get a reference to a source.
>>
>> Thanks and regards,
>>
>>
>> Sanyogita
>>
>>
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>
>
> --
> Deepak Agrawal
> Hyderabad, India






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