Re: ATM Cement tools

[Kartik Patel <kpatel@apsara.barc.ernet.in>]

Hello,

That is why the design strength is always more than that actually required
by the structure, I suppose.

Is this behaviour true for other types of cements, as well? It would be
nice if you could provide some pointers to information.

Sincerely,
Kartik Patel,
Bombay, India

On Mon, 11 Jun 2001, Daniel Fundo wrote:

> <<  Portland cement is actually a gel that never is completely cured. >>
>
> Richard,  According to my Concrete Construction Manual, if properly
> hydrated, it takes approximately 20 years to completely cure under a
> constant temperature of 70 degrees F./21 degrees C.  It will achieve 70%
> of design strength in 7 days, 90% in 28 days, 98% at 1 year.
>
> I have never heard it refered to as a "gel".  Is that a chemical term
> for the interim state?
>
> *****-----
> Dan F.
> Secretary/MAS
> Memphis, TN
>
>