Sv: Sv: [Strawbale] Thermo floor from snail-houses/mussels

Lars Keller larskeller at livinghouses...
Wed Jan 29 22:52:27 CET 2003


Well, any good ideas ?  ;->
Lars


----- Original Message ----- 
From: SVEN AERTS <aertssven at mac...>
To: <strawbale at amper....muni.cz>
Sent: Wednesday, January 29, 2003 3:27 AM
Subject: Re: Sv: [Strawbale] Thermo floor from snail-houses/mussels


> To prevent round snail shells from sliding and... There are regions where
> you have underground mudd streams... Very strange thing.
> 
> Here in Brussels f.e. They exist too: its a mudd stream that keeps coming
> and coming... Some construction companies here - when they were trying to
> suck away the unsteady ground - kept on sucking that mud steam until 5
> houses away there were some foundation problems raising... They had sucked
> away all the ground... There's seems only 1 way to stop it and to inject
> some hardening stuff in it.
> 
> In my system that would never happen.... My whole foundation is linked to
> each other as a raster/network thanks to the cement milk.
> Loads can be higher too.
> 
> Regarding the interest in my site... Let's co-organise some lectures.
> --
> Respectfully Yours,
> 
> Sven AERTS
> Engineer for the People
> 
> Residential Address
>      Louizalaan 223 b 9
>      B-1050 Brussels
>      BELGIUM-EUROPE
>      GSM: +32 (0)485/389679
>      Email: aertssven at mac...
>      ICQ: 113835655
> 
>      For eco-techs & game for a better world, visit:
>                http://homepage.mac.com/aertssven
> -----------
> Have a nice day...
> 
> 
> 
> On 2003-01-21 00:59, "Lars Keller" <larskeller at livinghouses...> wrote:
> 
> > Dear Sven,
> > 
> > for the last 5 years we have been building floors pretty much like you write
> > about below. But we do not add the cement milk.
> > Why do you ad it ?
> > 
> > yours sincerely
> > Lars keller
> > 
> > PS: I found your website v. interesting
> > ~~
> > 
> > ----- Original Message -----
> > From: SVEN AERTS <aertssven at mac...>
> > To: <strawbale at amper....muni.cz>
> > Sent: Friday, January 17, 2003 4:35 AM
> > Subject: [Strawbale] Thermo floor from snail-houses/mussels
> > 
> > 
> >> PRINCIPLE
> >> 
> >> 
> >>    |  |
> >>    |  | Chimney for airco in summer
> >>    |  |
> >>    |  |
> >> ///|  |//////  Floor U walk on + floor-
> >> +++|  |=====  concrete       | heating
> >> +++|  |+++++  metal grid reinforcing
> >> ===|  |=====  concrete  | the concrete
> >> ***|  |*****  PE-Foil
> >> AAA|  |AAXAA Mussels-Cement milk
> >> AAA|  |AAXAA Mussels-Cement milk
> >> AAA|  |AAXAA Mussels-Cement milk
> >> AAA|  |AAXAA Mussels-Cement milk
> >> AAA|  |AAXAA Mussels-Cement milk
> >> AAA|  |AAXAA Mussels-Cement milk
> >> AAA|  |AAXAA Mussels-Cement milk
> >> AAA|  |AAXAA Mussels-Cement milk
> >> AAXAAAAAXAAA Mussels-Cement milk
> >> AAXAAAAAAAXA Mussels-Cement milk
> >> 
> >> Mussel-thermo-floor as an isolating, carrying and durable
> >> supplement between the floor plate and the full ground, which replaces
> >> the basement and the use of heat-insulation-plates in an advantageous
> >> Manner.
> >> The distance between the shells (mustn't be mussel shells, better even
> >> snail-shells) caught in the net of cement-milk is going to be too wide for
> >> capillary effects to carry the ground water all the way up to the floor
> >> plate.
> >> 
> >> Thickness mussel-layer in cm     15     20     25     30     35     40
> >> 
> >> 
> >> Heatresistance         in m¾*K/W 1    1,33    1,67    2    2,33    2,67
> >> thermofloor
> >> 
> >> Heattransmission-
> >> coÎff. k               in W/m¾K    0,82    0,64    0,52    0,45    0,39
> >> 0,34
> >> thermofloor + 
> >> concrete layer 8 cm)
> >> 
> >> k=amount of heat transferred through the layer over a surface of 1 cm2 and
> >> per second at 1 K temperature difference between two sides of the
> >> total-thermo-floor.
> >> 
> >> 
> >> ADMISSIBLE FORCE  PRIVATE HOUSE CONSTRUCTION
> >> 
> >> Admissible static and evenly divided charge floor cover with a
> >> reinforced metal-grid/concrete plate of 7-9 cm thick, amount to estimated
> >> 3-4 kN/m¾, or a point charge of 2-3 kN on a randomly chosen basis of 10 cm x
> >> 10 cm.  The thermofloor can be charged with a not carrying wall of maximum 5
> >> kN per stretching meter. Carrying walls, chimneys, etc. must be built always
> >> on their own foundation.
> >> 
> >> Advantage: reduction of foundation building work: floor rests entirely on
> >> the mussel-layer - stabilised sand is superfluous.  Thanks to the larger
> >> thickness of the layer versus classical foundation techniques, the
> >> foundation's isolation factors are considerably increased.
> >> Low heat-conductivity - estimated at less than 0.12 W/mK.
> >> Results from air captured between the shells. A layer of 20 cm thick,
> >> generally the depth of the leveling, limit warmth losses with regard to
> >> not-isolated floors by 40 %. - thus limiting warmth losses but also raising
> >> the temperature of the floor, as a result of which the comfort raises and
> >> the danger for condensation reduces.
> >> 
> >> 
> >> CEMENT MILK
> >> 
> >> The composition of cement milk is as follows: 50 kg cement (CEM I 42.5) + 50
> >> l water give 65 l cement milk. During the processing cement milk must remain
> >> homogeneous.
> >> Stabilised layer cannot be tred upon before it has sufficiently hardened (in
> >> normal circumstances 24 up to 48 hours).  On top of that you need to foresee
> >> time for the top cement/grid/cement grid to dry.
> >> 
> >> These are the values I use in my calculatoins.
> >> --
> >> Respectfully Yours,
> >> 
> >> Sven AERTS
> >> Engineer for the People
> >> 
> >> Residential Address
> >>      Louizalaan 223 b 9
> >>      B-1050 Brussels
> >>      BELGIUM-EUROPE
> >>      GSM: +32 (0)485/389679
> >>      Email: aertssven at mac...
> >>      ICQ: 113835655
> >> 
> >>      For eco-techs & game for a better world, visit:
> >>                http://homepage.mac.com/aertssven
> >> -----------
> >> Have a nice day...
> >> 
> >> 
> >> 
> >> ____________________________________________________
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> >> 
> >> Send all messages to:
> >> Strawbale at amper....muni.cz
> >> 
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> >> 
> >> 
> > 
> > 
> > ____________________________________________________
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> > 
> > Send all messages to:
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> > 
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> > 
> > 
> 
> 
> ____________________________________________________
>     European strawbale building discussion list
> 
> Send all messages to:
> Strawbale at amper....muni.cz
> 
> Archives, subscription options, etc:
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