Wednesday, October 21, 2009

Re: [papercreters] Re: Data base info on PC mix

I know and we have determined that compressive strength probably isn't
the best way to measure PC although it does give a basis to start.

On 10/21/09, Spaceman <Spaceman@starship-enterprises.net> wrote:
>
>
> Those standards are for concrete. Papercrete is not concrete.
>
> rmorger03 wrote:
>>
>> Industry standard is a seven day preliminary break and a twenty eight day
>> break. Some jobs do additional breaks at 54 days or 90 days depending on
>> original mix design.
>> I would have expected higher compressive strengths also.
>>
>> --- In papercreters@yahoogroups.com, Jim Elbrecht <elbrecht@...> wrote:
>>
>>>
>>> Both good reading. PC is *way* softer than I expected. Softer
>>> than most woods used in construction. 260psi is softer than
>>> basswood. [and concrete used in footings is abt 5000psi, if I recall
>>> correctly]
>>>
>>> They don't say on that page how long they cured the samples. [or am I
>>> missing that?] 1 week, 1 month, and 1 year samples would be
>>> interesting.
>>>
>>> Jim
>>>
>>>
>>
>>
>>
>> ------------------------------------
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>> ________________________________
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.423 / Virus Database: 270.14.24/2449 - Release Date: 10/20/09
>> 18:42:00
>>
>>
>
>


--
Robert Morger
Central Texas


------------------------------------

Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/papercreters/

<*> Your email settings:
Individual Email | Traditional

<*> To change settings online go to:
http://groups.yahoo.com/group/papercreters/join
(Yahoo! ID required)

<*> To change settings via email:
mailto:papercreters-digest@yahoogroups.com
mailto:papercreters-fullfeatured@yahoogroups.com

<*> To unsubscribe from this group, send an email to:
papercreters-unsubscribe@yahoogroups.com

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/