Ferrocement Educational Forum
Welcome, Guest. Please login or register.
December 20, 2014, 08:11:20 AM

Login with username, password and session length
Search:     Advanced search
Welcome to the NEW Ferrocement Discussion Forum
2728 Posts in 416 Topics by 573 Members
Latest Member: Chris Meador
* Home Help Search Calendar ArchivesFEN Home Login Register
Ferrocement Educational Forum  |  Ferrocement Discussions  |  Other Examples  |  Topic: Amazing ferro house picture gallery « previous next »
Pages: [1] Print
Author Topic: Amazing ferro house picture gallery  (Read 4181 times)
Leo Freeman
Full Member
***
Posts: 15



WWW
« on: December 11, 2011, 11:26:00 PM »

A great picture gallery of ferrocement house building in India. This is really inspiring:

https://picasaweb.google.com/115991158425773775342/RAMSFERROCEMENTHOUSE

Logged
philb
Sr. Member
****
Posts: 204


« Reply #1 on: December 12, 2011, 08:31:15 PM »

A belated welcome to the board.

That's cool house. It seems about half the FC is working overhead. By the photos, it looks like Ram had plenty of help though.

Edit:
This type of construction would be considered ferrocement and not laminated ferrocement even though the metal seems to be totally encapsulated.
Am I correct Paul?
« Last Edit: December 12, 2011, 08:41:54 PM by philb » Logged
Paul Sarnstrom
Global Moderator
Sr. Member
*****
Posts: 348



WWW
« Reply #2 on: December 13, 2011, 12:35:59 PM »

Hello,

All wire mesh along with any other reinforcing used in FC must be completely encapsulated by mortar. This applies to 'traditional' FC as well as LFC or Laminated Ferrocement.

The differences betwen the two types of FC are:

Traditional FC:

A framework, usually of rebar, is covered with layers of wire mesh to form an armature. Then the armature is encapsulated with mortar by pushing the mortar through the layers of mesh and finishing the mortar. In addition to the amount of time required to build the armature, a drawback of this method is attempting to push mortar through multiple layers of mesh and to encapsulate the wire mesh fully and without voids. If two or three layers of mesh are used this method can be fairly successful - if used for terrestrial structures. When many, 8-12 layers of mesh, are used in boats as was done in the 1960's-1980's it is found there are a large number of voids created. When you have so many layers of wire mesh, each layer offset from the others, the final opening size becomes very small. When pushing mortar through these small openings sand begins to pack and the mortar dewaters making it even more difficult to push through. Plastering mortar from both exponentially increases the problem as even more air is entrapped.

LFC, Laminated Ferrocement:

In LFC a form or mold is used to form the LFC object on or in. Simply put, a thin 2mm-3mm layer of mortar is applied to the surface of the mold or form and wire mesh [usually expanded metal lath] is pressed into the mortar. Further layers of mortar and wire mesh are added into the laminate until the desired number of layers of reinforcing have been embedded. As no armature needs to be constructed [as in traditional FC] there are great labor savings. Because each layer of mesh is pressed into the mortar the layers of mesh are completely encapsulated with no voids.

The Ferrocement Educational Network will be conducting Level 1 and Level 2 LFC courses this summer. The dates are not finalized yet however the last two weeks in July is the likely time for these courses.

Paul
Logged

Paul Sarnstrom
Pages: [1] Print 
Ferrocement Educational Forum  |  Ferrocement Discussions  |  Other Examples  |  Topic: Amazing ferro house picture gallery « previous next »
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.13 | SMF © 2006-2008, Simple Machines LLC Valid XHTML 1.0! Valid CSS!