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Fwd: Re: Epoxy Coated Rebar[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: addseaoc(--nospam--at)euken.com
- Subject: Fwd: Re: Epoxy Coated Rebar
- From: rlewis(--nospam--at)techteam.org (Richard Lewis)
- Date: 30 Jul 1997 14:33:22 GMT
A short note on Epoxy - rebars: Epoxy protects rebars as long as the epoxy coating is not damaged - and to manage so there is needed greate care. There may be more safe - and prob cheaper (I have no price info) to use anodes (anode-protection). Protection of rebars is only actual where there is significant risk for Cl- attacks (& carbonation) on the rebars. This means in salt water - above the watersurface, on road constructions where salt is used to prevent ice/dust and in agressive industrial enviroments.=20 The first step of protection is to use a suitable concrete (high quality & low permability) and a suitable cover sone. In Norway we have corosion (Cl-) problems mainly on bridges in the costal areas (and we have a lot of theese areas) where you have Cl- from the sea and from road-salt during the winter. In the 70's there was used little rebar-cover (down to 10-15 mm) and 45-55 MPa concrete, in combination with slim constructions - concrete was the Good given Ultimane & Everlasting material at that time. Today we use 65MPa HPC concrete (often with silica fume) and at least 40-45 mm cover (up to 70 in exposed sones) - but we'l have to wait some years before we can tell if this is enough. There may also be used "protective" painting on the concrete surface - but in this are here is, to say it directly, mutch crap! oes _______________________________________________________________________ Mr. =D8yvind S=E6ter (Alternative: OEyvind Saeter) M. Sc. in Civil Engineering. oysater(--nospam--at)sn.no , http:\\www.pVv.org\~oes , oes(--nospam--at)pVv.org , Norway If you do not like my spelling=20 ->http://www.pVv.org/~oes/misspelling.html _______________________________________________________________________ --- Internet Message Header Follows --- Received: from server1.seaoc.org (bqe.com [126.96.36.199]) by host1.texramp.net (8.8.5/8.8.5) with SMTP id IAA15303 for <rlewis(--nospam--at)techteam.org>; Tue, 25 Feb 1997 08:19:17 -0600 (CST) Received: from mail1.sn.no by server1.seaoc.org (NTList 3.02.10) id pa004487; Tue, 25 Feb 1997 06:14:54 -0800 Received: from mail2.sn.no (0(--nospam--at)mail2.sn.no [188.8.131.52]) by mail1.sn.no (8.7.5/8.7.3/on4) with ESMTP id <PAA26402> for <seaoc(--nospam--at)seaoc.org>; Tue, 25 Feb 1997 15:12:01 +0100 (MET) Received: from VegBoks (ski6-14.ppp.sn.no [184.108.40.206]) by mail2.sn.no (8.8.4/8.8.4/1.5) with SMTP id <PAA13966> for <seaoc(--nospam--at)seaoc.org>; Tue, 25 Feb 1997 15:11:59 +0100 (MET) Date: Tue, 25 Feb 1997 15:11:59 +0100 (MET) Message-Id: <199702251411.PAA13966(--nospam--at)mail2.sn.no> X-Sender: seaoc-ad(--nospam--at)seaoc.org X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: seaoc(--nospam--at)seaoc.org From: Oeyvind Saeter <oes(--nospam--at)pVv.org> Subject: Re: Epoxy Coated Rebar Reply-To: seaoc(--nospam--at)seaoc.org Error-To: seaoc-ad(--nospam--at)seaoc.org X-Loop: seaoc(--nospam--at)seaoc.org X-Info: [SEAOC] Owner: seaoc-ad(--nospam--at)seaoc.org X-POP3-Rcpt: seaoc-ad(--nospam--at)seaoc.org Precedence: list X-ListMember: rlewis(--nospam--at)techteam.org [seaoc(--nospam--at)seaoc.org] __________________________________________________ Richard Lewis, P.E. Missionary TECH Team rlewis(--nospam--at)techteam.org The service mission like-minded Christian organizations may turn to for technical assistance and know-how.
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