Tuesday, January 10, 2012

CONCRETE FLOOR SLAB - SECOND POUR

In January, the second concrete floor slab was poured for the majority of the house footprint.  Using the same construction as the first floor slab, the insitu concrete floor is poured over 'EXPOL' 100mm thick EPS polystyrene insulation which is laid on top of a continuous layer of polythene.  The slab is reinforced with steel mesh, spaced off the EPS insulation boards on spacers that maintain cover to the steel mesh.  Beneath the polythene is a layer of compacted sand on top of a porous hardfill.  Pipework protrusions are made with sleeves to accommodate the necessary services (e.g. plumbing, wiring and ducting for 'Zehnder' ventilation system from Fantech, which will be installed later in the programme) for the requirements of the house design.

A portion of this slab was a suspended concrete floor using a Stahlton precast system.
Service pipes were set into the hardfill, and prepared to be cast into the slab  protruding where needed to facilitate the house services required.

At this stage, the timber framing for the walls and roof of the rear section of the house can be seen in place.  (Refer to the 'TIMBER FRAMED WALLS' and 'TIMBER FRAMED ROOF' sections of this blog for detail on these elements.)

Preparing for the concrete slab - laying pipes and spacing the reinforcing mesh.
At the rear the timber framed walls and roof trusses are visible.

Scaffolding is being crane delivered - viewed to the left of this picture.

Stahlton precast beams for the suspended concrete floor slab

Formwork around the edge of the slab is braced to support the 'Ecoblock' formork.
Reinforcing mesh is spaced up from the layer of grey insulating foam.
Grey and orange conduit for services is ready for casting into the concrete slab


Service conduit protrudes through the suspended concrete slab


 





 



Conduit protrudes through the hardfill and foundation walls 
Polythene, grey insulating foam board 
('EXPOL' 100mm thick EPS polystyrene ) 
and reinforcing mesh are laid over the compacted hardfill. 
The reinforcing bars are bent into the concrete slab.

 

 



  


This rebate is for an 11meter, fully-sealed, PH certified sliding 
glass door supplied by EcoWindows.
Base detail for the fixing of the steel portal frames is allowed
to be recessed into the concrete slab.


Viewed across the area prepared for the concrete floor slab concrete pour,
the reinforcing steel mesh can be seen lapped and spaced off the
 
'EXPOL'  EPS polystyrene insulation , the reinforcing starter rods for 
the footings are bent to allow for positioning within the concrete slab,
and service conduits and drains secured.



Preparation for the concrete slab pour is completed, 
ready for the arrival of the concrete delivery.



 Concrete is pumped into place




Concrete workers move and vibrate the pumped concrete into place


 

Service pipes protrude through the wet concrete


 Concrete is float finished up to the edge formwork.


 
The concrete floor slab is then floated off.


 

The second concrete floor slab is complete, and left to cure. 
To the left of the slab, timber formwork has been set into the slab to 
form a rebate for the sliding glass door supplied by EcoWindows.















9 comments:

dabane wanniya said...

VISIT MORE DETAILS
http://www.saengineerslk.com/How%20To%20Laying%20Slab%20Conduit%20Pipe/index.html

shaving mirrors said...

Dear, Sir

This is another biggest with very useful guidelines about web page on passivehouse1nz.blogspot.com.It is a highly effective web page for the area of person.This web page maintaining play a role significantly.Truly I like this web page. I am expecting to choose up more running a blog perform, too! I like to evaluation my Welcome to Rugstar.com.au, Australia's favorite online rug buying groceries in Australia: we get direct deals from the producer to you! We sell an implausible range of Australian favorite floor rugs, carpet rug, by way of shopping on-line you'll keep on shaggy, modern, wool, traditional and lots of different rug designs.

Many many congratulation for your Article.

mfzmou said...

what a nice collection. It's really good. I like it. Here is another information place. Please visit here and get some good information.Floor insulation Bethlehem PA

mfzmou said...

wow......what a picture. Your choice is best. I like it. Here is some good information. Please visit here.math problems

SHOAB said...

Hello sir, I got you by Google search.

It is very well information about on passivehouse1nz.blogspot.com.its a Valiable site for all the people .I always like this website . All people always want to know all about things that you have been described. It is very valuable & very nice posting! I will bookmark this blog as I have Welcome to Rugstar.com.au, Australia's favorite on-line rug buying groceries in Australia: we get direct offers from the manufacturer to you! We promote an out of this world range of Australian favourite Area Rugs, carpet rug, by way of shopping online you'll stay on shaggy, up to date, wool, traditional and plenty of different rug designs.


Thanks For Only You Create That cute Article.

evanward007 said...

When they build office buildings or even multi storey appartments / flats they pour concrete for the floor instead of toungue and groove timber truss support. They did this for all the multi storey appartments in the 1960's and 1970's. - It must of have been cost effective.
http://essayswriters.org/paper-writing/

meazrrya said...

when can you pour your column for second floor if you pour concrete today for your suspended slab?

Brodie Shoebridge said...

Excellent service...In case floor slab it is an important role in projects that involve many experts with a wide range of specialties. All Slab Concreting admire your service fully.

Leslie Lim said...

I admired those who has able to create a blog as wonderful as this! You are truly a hard working person. Keep up the good work and keep on posting.

Lizzy
www.imarksweb.org

Post a Comment