# RE: Low Concrete Quality

• To: seaint(--nospam--at)seaint.org
• Subject: RE: Low Concrete Quality
• From: joseph eden <joeeden(--nospam--at)yahoo.com>
• Date: Fri, 15 Jun 2001 11:44:53 -0700 (PDT)
```I am looking for a structural engineer/drafter
moonlighter who lives and work in ventura
--- "Lutz, James" <JLUTZ(--nospam--at)earthtech.com> wrote:
> I think my unstated point was that the units made no
> sense. Compressive
> strength is measured in units of pressure, or force
> per unit area, not mass
> per unit area. A kilogram is a unit of mass. A
> Newton is a unit of force
> equal to a kilogram times an acceleration of 1
> meter/sec2.
>
> As we used to say in Alaska, "I don't care how they
> do it down south."
>
> -----Original Message-----
> From: Oshin Tosounian [mailto:sdgse(--nospam--at)pacbell.net]
> Sent: Friday, June 15, 2001 10:35 AM
> To: seaint(--nospam--at)seaint.org
> Subject: Re: Low Concrete Quality
>
>
>
> ----- Original Message -----
> From: "Lutz, James" <JLUTZ(--nospam--at)earthtech.com>
> To: <seaint(--nospam--at)seaint.org>
> Sent: Friday, June 15, 2001 8:41 AM
> Subject: RE: Low Concrete Quality
>
>
> > I've never heard of compressive strength being
> expressed as kg/cm2.
> > Shouldn't it be N/cm2 or MPa? 210 N/cm2 or 21 Mpa
> is around 3000 psi. (1
> Ksi
> > = 6.894 MPa.)
> >
>
> Kg/cm2 is part of the metric system used in some
> countries. The others you
> metioned are part of  "System International", which
> is erroneously (I think)
> referrd to as the metric system.
>
> Oshin Tosounian, S.E.
> Los Angeles, CA
>
>
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