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Subject: Market Farming
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- From: "Shoemaker, William H" <wshoemak AT illinois.edu>
- To: Market Farming <market-farming AT lists.ibiblio.org>
- Subject: Re: [Market-farming] Is Crushed Concrete Toxic?
- Date: Sun, 21 Apr 2013 01:25:27 +0000
Thanks Richard, for the reminder that base materials differ depending on what resources are available, and cheap, in your region. Limestone is everywhere here in the corn belt. Not so everywhere.
Bill William H. Shoemaker, Northern Illinois Viticulturist - IGGVA Illinois Grape Growers and Vintners Association From: market-farming-bounces AT lists.ibiblio.org [market-farming-bounces AT lists.ibiblio.org] on behalf of Richard Stewart [rstewart AT zoomtown.com]
Sent: Saturday, April 20, 2013 8:55 AM To: Market Farming Subject: Re: [Market-farming] Is Crushed Concrete Toxic? Newer concrete that has fly ash added to it does. It has a whole host of heavy metals…nickel, cadmium, mercury…all these tuff the scrubbers take out. Not too sure how much of it migrates. As to placing it in a pond one only needs to understand the base
compounds for concrete usually lime/calcium and sulfate/gypsum and understand why you don't want to dump a lot in a pond. THese are natural substances but can mess with the chemical composition of the pond and its Ph.
I would use it as a road bed to the entrance of our fields (no more toxic than what ever mess is along the road (rubber dust led etc) but I would not use it in a garden or in a children's play area.
Richard Stewart
Carriage House Farm
North Bend, Ohio
An Ohio Century Farm Est. 1855
(513) 967-1106
You can follow us on Facebook or on Twitter @CarriageHsFm
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On Apr 19, 2013, at 3:37 PM, Barking Cat Farm <barkingcatfarm AT mindspring.com> wrote:
My apologies in advance for what may be a silly question. I've spent a lot of time looking into this and cannot seem to get consistent answers, so I decided to ping The Collective. |
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[Market-farming] Is Crushed Concrete Toxic?,
Barking Cat Farm, 04/19/2013
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Re: [Market-farming] Is Crushed Concrete Toxic?,
Mike Brabo, 04/19/2013
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Re: [Market-farming] Is Crushed Concrete Toxic?,
Kakerby, 04/19/2013
- Re: [Market-farming] Is Crushed Concrete Toxic?, Barking Cat Farm, 04/19/2013
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Re: [Market-farming] Is Crushed Concrete Toxic?,
Barking Cat Farm, 04/19/2013
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Re: [Market-farming] Is Crushed Concrete Toxic?,
Mike Brabo, 04/19/2013
- Re: [Market-farming] Is Crushed Concrete Toxic?, Shoemaker, William H, 04/19/2013
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Re: [Market-farming] Is Crushed Concrete Toxic?,
Mike Brabo, 04/19/2013
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Re: [Market-farming] Is Crushed Concrete Toxic?,
Kakerby, 04/19/2013
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Re: [Market-farming] Is Crushed Concrete Toxic?,
Richard Stewart, 04/20/2013
- Re: [Market-farming] Is Crushed Concrete Toxic?, Shoemaker, William H, 04/20/2013
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Re: [Market-farming] Is Crushed Concrete Toxic?,
Mike Brabo, 04/19/2013
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