Subject: Re: ferrocement beginer
Date: Tue, 24 Apr 2001 16:44:19 -0600
The best beginner and general book on ferrocement is 'Ferrocement Building
with Cement, Sand and Wire Mesh' by Stanley Abercrombie. This book is out of
print but you can get it through the inter-library loan program.
Plasticizers help lower the water content for the mortar while keeping it
flowable and making it penetrate mesh layers easily.
The ideal water content is .35-.4 parts water [by weight] to 1 part cement.
Cement sand ratios can vary from 1-1 to 1-3.
When spraying mortar a form of some type is used. this is a good way to form
an initial shell that can have other layers added to it or to form a shell
that will be used as formwork for concrete. the shell is left in place and
actually makes the finished concrete stronger.
Another way to use a sprayer is in the laminating method in which a thin
layer [2-3mm] of mortar is sprayed into a mold or onto a form and then a
layer of expanded metal lath [plasterer's lath] is imbedded in the mortar.
Another layer of mortar is sprayed and another layer of lath is imbedded
until the desired thickness is reached. This method produces an extremely
strong ferrocement element.
I'll be out of town for 3 weeks staring Friday but if I can be of further
help please let me know.
Order "Ferrocement Building with Cement, Sand and Wire Mesh" Today!