hello,

I want to build a fake rock outdoors (example this erratic block:
http://gsc.nrcan.gc.ca/landscapes/ph...et/img0049.jpg )
the size is 6 x 8 m and about 5 m high. it will be hollow and will be
accessible as a kind of cave.
I admit I have never worked with concrete. (I'm rather a wood
specialist)

I imagined to build a frame of iron and then spray the concrete on
both sides for a total thickness of about 15 to 20 cm.

I do not know if I need to build foundations?
is there a problem of humidity, venting?
how hard is it to do a nice finish of fake rock?
is only 15 cm thick enough?
How do I estimate my time for the production of such a piece?
where do I find a basic builder vocabulary ?
any good source book for me to read this winter?

I am looking for general advice, errors from beginner to avoid tricks,
corporations and others.

see you,
gregory

"gregory" wrote in message
...
hello,

I want to build a fake rock outdoors (example this erratic block:
http://gsc.nrcan.gc.ca/landscapes/ph...et/img0049.jpg )
the size is 6 x 8 m and about 5 m high. it will be hollow and will be
accessible as a kind of cave.
I admit I have never worked with concrete. (I'm rather a wood
specialist)

I imagined to build a frame of iron and then spray the concrete on
both sides for a total thickness of about 15 to 20 cm.

I do not know if I need to build foundations?
is there a problem of humidity, venting?
how hard is it to do a nice finish of fake rock?
is only 15 cm thick enough?
How do I estimate my time for the production of such a piece?
where do I find a basic builder vocabulary ?
any good source book for me to read this winter?

I am looking for general advice, errors from beginner to avoid tricks,
corporations and others.

see you,
gregory

What is the purpose? I don't have a clue how to do it but I'm curious as to
why someone would do this.

Olddog

On Dec 7, 12:41*pm, gregory wrote:
hello,

I want to build a fake rock outdoors (example this erratic block:http://gsc.nrcan.gc.ca/landscapes/ph...et/img0049.jpg)
the size is 6 x 8 m and about 5 m high. it will be hollow and will be
accessible as a kind of cave.
I admit I have never worked with concrete. (I'm rather a wood
specialist)

I imagined to build a frame of iron and then spray the concrete on
both sides for a total thickness of about 15 to 20 cm.

I do not know if I need to build foundations?
is there a problem of humidity, venting?
how hard is it to do a nice finish of fake rock?
is only 15 cm thick enough?
How do I estimate my time for the production of such a piece?
where do I find a basic builder vocabulary ?
any good source book for me to read this winter?

I am looking for general advice, errors from beginner to avoid tricks,
corporations and others.

see you,
gregory

In marine applications this is called ferrocrete. In construction,
like swimming pools and trick roof sections it is Gunnite. Start there
and keep going in your research until you feel competent to talk to
professionals in the field. They are the people who can answer your
questions.
BTW, why the antipathy for corporations? You'll be dealing with them
in your project, as well as bureauocrats (think building permits).

Joe

On Dec 7, 8:01*pm, "olddog" wrote:
"gregory" wrote in message

...



hello,

I want to build a fake rock outdoors (example this erratic block:
http://gsc.nrcan.gc.ca/landscapes/ph...et/img0049.jpg)
the size is 6 x 8 m and about 5 m high. it will be hollow and will be
accessible as a kind of cave.
I admit I have never worked with concrete. (I'm rather a wood
specialist)

I imagined to build a frame of iron and then spray the concrete on
both sides for a total thickness of about 15 to 20 cm.

I do not know if I need to build foundations?
is there a problem of humidity, venting?
how hard is it to do a nice finish of fake rock?
is only 15 cm thick enough?
How do I estimate my time for the production of such a piece?
where do I find a basic builder vocabulary ?
any good source book for me to read this winter?

I am looking for general advice, errors from beginner to avoid tricks,
corporations and others.

see you,
gregory

What is the purpose? I don't have a clue how to do it but I'm curious as to
why someone would do this.

Olddog

it is a sculpture for the public parc of a museum, inside the rock
there will be an element of the show presented in the museum. the
references that i have is alternative self made housing and fake rocks
for zoo and disney world.

greg

On Dec 7, 8:05*pm, Joe wrote:
On Dec 7, 12:41*pm, gregory wrote:



hello,

I want to build a fake rock outdoors (example this erratic block:http://gsc.nrcan.gc.ca/landscapes/ph...et/img0049.jpg)
the size is 6 x 8 m and about 5 m high. it will be hollow and will be
accessible as a kind of cave.
I admit I have never worked with concrete. (I'm rather a wood
specialist)

I imagined to build a frame of iron and then spray the concrete on
both sides for a total thickness of about 15 to 20 cm.

I do not know if I need to build foundations?
is there a problem of humidity, venting?
how hard is it to do a nice finish of fake rock?
is only 15 cm thick enough?
How do I estimate my time for the production of such a piece?
where do I find a basic builder vocabulary ?
any good source book for me to read this winter?

I am looking for general advice, errors from beginner to avoid tricks,
corporations and others.

see you,
gregory

In marine applications this is called ferrocrete. In construction,
like swimming pools and trick roof sections it is Gunnite. Start there
and keep going in your research until you feel competent to talk to
professionals in the field. They are the people who can answer your
questions.
BTW, why the antipathy for corporations? You'll be dealing with them
in your project, as well as bureauocrats (think building permits).

Joe



thanks for the infos.
hehe! corporation is the wrong word. (my happy frenglish google
translation!)
i am in fact asking about possible addresses of companies specialised
in the subject.

g

"gregory" wrote in message
...
On Dec 7, 8:05 pm, Joe wrote:
On Dec 7, 12:41 pm, gregory wrote:



hello,

I want to build a fake rock outdoors (example this erratic
block:http://gsc.nrcan.gc.ca/landscapes/ph...et/img0049.jpg)
the size is 6 x 8 m and about 5 m high. it will be hollow and will be
accessible as a kind of cave.
I admit I have never worked with concrete. (I'm rather a wood
specialist)

I imagined to build a frame of iron and then spray the concrete on
both sides for a total thickness of about 15 to 20 cm.

I do not know if I need to build foundations?
is there a problem of humidity, venting?
how hard is it to do a nice finish of fake rock?
is only 15 cm thick enough?
How do I estimate my time for the production of such a piece?
where do I find a basic builder vocabulary ?
any good source book for me to read this winter?

I am looking for general advice, errors from beginner to avoid tricks,
corporations and others.

see you,
gregory

In marine applications this is called ferrocrete. In construction,
like swimming pools and trick roof sections it is Gunnite. Start there
and keep going in your research until you feel competent to talk to
professionals in the field. They are the people who can answer your
questions.
BTW, why the antipathy for corporations? You'll be dealing with them
in your project, as well as bureauocrats (think building permits).

Joe



thanks for the infos.
hehe! corporation is the wrong word. (my happy frenglish google
translation!)
i am in fact asking about possible addresses of companies specialised
in the subject.

g
===============================================

Yeah...like an inside out swimming pool. But you'd still have the outer
shell fake rock issue.

I used to climb rocks and a boulder like that, close to my house, to
practicing on, would of been nice.

Olddog

On Sun, 07 Dec 2008 19:01:38 GMT, "olddog" wrote:

What is the purpose? I don't have a clue how to do it but I'm curious as to
why someone would do this.

Water features, landscaping, etc. Boulders are expensive too purchase,
but faux rocks are easy to make. The ones I've seen constructed were
made with 3/8" galvanized mesh. Shaped to size...

Once you have the shape, then a three coat of stucco/motar.

Samples like used in the desert: (photo gallery).

http://rockmaker.com/gallery

On Sun, 7 Dec 2008 11:20:08 -0800 (PST), gregory
wrote:

i am in fact asking about possible addresses of companies specialised
in the subject.

http://www.jpjtechnologies.com/

"Oren" wrote in message
...
On Sun, 07 Dec 2008 19:01:38 GMT, "olddog" wrote:

What is the purpose? I don't have a clue how to do it but I'm curious as
to
why someone would do this.

Water features, landscaping, etc. Boulders are expensive too purchase,
but faux rocks are easy to make. The ones I've seen constructed were
made with 3/8" galvanized mesh. Shaped to size...

Once you have the shape, then a three coat of stucco/motar.

Samples like used in the desert: (photo gallery).

http://rockmaker.com/gallery


Those look cool,

Olddog

On Sun, 7 Dec 2008 10:41:55 -0800 (PST), gregory
wrote:

hello,

I want to build a fake rock outdoors (example this erratic block:
http://gsc.nrcan.gc.ca/landscapes/ph...et/img0049.jpg )
the size is 6 x 8 m and about 5 m high. it will be hollow and will be
accessible as a kind of cave.
I admit I have never worked with concrete. (I'm rather a wood
specialist)

I imagined to build a frame of iron and then spray the concrete on
both sides for a total thickness of about 15 to 20 cm.

I do not know if I need to build foundations?
is there a problem of humidity, venting?
how hard is it to do a nice finish of fake rock?
is only 15 cm thick enough?
How do I estimate my time for the production of such a piece?
where do I find a basic builder vocabulary ?
any good source book for me to read this winter?

I am looking for general advice, errors from beginner to avoid tricks,
corporations and others.

see you,
gregory


well your first problem is that you are measuring in meters. Only a
retard or forgiener would do that. Maybe you're a retarded forgiener!

I am the real ftwhd and I approve this message.