Haiti concrete mixer update

[CementTrust]

I thought that the group would be interested in this just-released
video of a new concrete mixer for Haiti.

http://www.theconcretemd.com/Video.htm

Thank you,

Bruce

[Gilles Boulanger]

Very ingenious and simple "foolproof" system. I can tell you guys did your homework and nailed the real needs of developing nations in view of their concrete mixing needs.

[alan scouten]

Do they use slump cones in Haiti? Do they control the hydration process during curing? SO much that goes into concrete, so that it can comes out good.  Your better-ditch sure a step in the right direction.   Alan

On Mon, Oct 25, 2010 at 5:32 PM, CementTrust <b...@cart-away.com> wrote:

[CementTrust]

Hi Alan,

We appreciate your comments and concerns for better building for
Haiti.

Yes I believe that they have access to concrete testing in Haiti. When
we started the testing in Oregon, we selected the lowest quality
aggregates that we could access and then had the concrete testing
company "air-cure" the samples to attempt to simulate Haitian
practices. Here are the results for 7 and 14-day break-tests:

(A) group: 4550 psi at 7 and 4540 psi at 14 (A group had less water in
the mixture)
(B) group: 3890 psi at 7 and 4260 psi at 14

When you consider that ground-mixed concrete has been reported in the
2800 psi range, it certainly points to the value of accurate material
batching and good mixture hydration.

Increasing the strength of the concrete, using better engineering,
correct reinforcements and connections should make a huge difference
in the next disaster. The question is if we allow them to rebuild
the same way as before, or use our resources to really make a
difference in their structures.

Thanks again for your continued input on this project.

Bruce

[CementTrust]

Thank you for your comments on the mixer, Gilles.
We realize that many can not afford to purchase a robust mixer on
their own, but with the support of NGO's and small business loan
organizations, they should be able to get access to better tools.

Here is a link to our plan for decentralizing the concrete supply
chain: http://www.theconcretemd.com/PDF/SME%20Concrete%20Enterprises.pdf

Have a great day!

Bruce

On Oct 25, 5:30 pm, Gilles Boulanger <gilles.boulan...@gmail.com>
wrote:

[Peter Burgess]

Dear Colleagues

I like this. Please keep me informed as the initiative moves from an
idea to actual implementation.
http://www.theconcretemd.com/Video.htm
http://www.theconcretemd.com/PDF/SME%20Concrete%20Enterprises.pdf

Another set of small businesses that should be established are private
independent "testing labs". The control of quality is an essential
aspect of serious civil engineering ... and small business and small
projects should be encouraged to do their work to a high quality just
as big organizations do. The independent testing lab is a key part of
the construction industry infrastructure

Peter Burgess
____________
Peter Burgess
Meaningful Metrics for a Smart Society
www.theburgessmethod.com
www.truevaluemetrics.com
www.tr-ac-net.org (being phased out!)
blog: http://communityanalyticsca.blogspot.com
tel: 212 744 6469
email: pete...@gmail.com
twitter: @peterbnyc
skype: peterburgessnyc
Books: Search Peter Burgess at www.lulu.com

[CementTrust]

Peter,

The idea of adding quality control testing business opportunities into
the concrete supply chain plans for Haiti is fantastic. I will be
adding that to our Small and Medium Concrete Enterprise plan.

Testing labs would help to insure that only the best suppliers would
get more work, as word spreads that there is a way to check the safety
of the concrete.

Thanks for these great ideas, Peter...

Have a great day!

Bruce

On Oct 26, 6:37 pm, Peter Burgess <peterb...@gmail.com> wrote:
> Dear Colleagues
>
> I like this. Please keep me informed as the initiative moves from an

> idea to actual implementation.http://www.theconcretemd.com/Video.htmhttp://www.theconcretemd.com/PDF/SME%20Concrete%20Enterprises.pdf

>
> Another set of small businesses that should be established are private
> independent "testing labs". The control of quality is an essential
> aspect of serious civil engineering ... and small business and small
> projects should be encouraged to do their work to a high quality just
> as big organizations do. The independent testing lab is a key part of
> the construction industry infrastructure
>
> Peter Burgess
> ____________
> Peter Burgess

> Meaningful Metrics for a Smart Societywww.theburgessmethod.comwww.truevaluemetrics.comwww.tr-ac-net.org(being phased out!)
> blog:http://communityanalyticsca.blogspot.com
> tel:212 744 6469begin_of_the_skype_highlighting              212 744 6469      end_of_the_skype_highlighting
> email: peterb...@gmail.com

[Bruce]

Peter,

You have a great point! Testing and oversight allow customers to measure
one supplier against another.

I do not know the initial investment in this type of small business, but the
testing lab that we use here in Oregon doesn't look to have a huge
investment. I am going to add this enterprise to the list of suggested
entrepreneurial activities that affect the concrete supply chain.

Thank you for your input on fixing the poor concrete system in Haiti.
Together we can raise the bar in structure safety.

Bruce