Sep 15, 2014 07:04
9 yrs ago
English term
CCA
English
Tech/Engineering
Engineering (general)
Galvanizing
Severe conditions: Galvanize mild steel components (including fasteners) to BS EN 10240 as appropriate, if:
Exposed to weather.
Embedded in masonry.
Exposed to or in air spaces behind external leaf of masonry walls.
In contact with chemically treated timber, other than CCA.
Severe conditions: Galvanize mild steel components (including fasteners) to BS EN 10240 as appropriate, if:
Exposed to weather.
Embedded in masonry.
Exposed to or in air spaces behind external leaf of masonry walls.
In contact with chemically treated timber, other than CCA.
Responses
| 4 +3 | Chromated Copper Arsenate |
YanaG
|
Responses
+3
13 mins
Selected
Chromated Copper Arsenate
CCA-treated timber is timber preserved with Copper Chrome Arsenate (CCA) or Chromated Copper Arsenate, as it is known in some countries. The copper (23-25%) and arsenic (30-37%) in CCA act as fungicides and insecticides, while the chromium (38-45%) fixes the chemicals into the wood (APVMA, 2003e; Greaves 2003). The chemical mixture is injected into the wood under pressure so that the wood is saturated with the chemicals.
4 KudoZ points awarded for this answer.
Comment: "Selected automatically based on peer agreement."
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