Ore extension: Difference between revisions

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en>Mark viking
Added wl, enveloping algebra -> universal enveloping algebra
en>Zieglerk
m →Properties: add non-commutative to PID, since wp's rings are commutative by default
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{{unref|date=July 2012}}
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{{advert|date=December 2009}}
'''Ductal®''' is a proprietary pre-mixed [[ultra-high performance concrete]] whose physical characteristics allegedly exceed those of common [[concrete]] used in the construction of [[building]]s. It is manufactured by [[Lafarge]] and [[Bouygues]]. Ductal® is claimed to have high compressive strength and flexural resistance compared to other concretes. It also has high durability, abrasion resistance, and chemical/environmental resistances (e.g. freeze and thaw, salt water, etc.). Due to these properties, Ductal® can be used in thinner cross-sections and in more varied applications than common concrete. Ductal® is almost self placing and is best suited for precast elements or in-situ repair or upgrade works.
 
Ductal® is a ductile material that allegedly possesses ultra high compressive strength, high tensile strength and high durability together with high fatigue performance. It also claims excellent impact, blast and abrasion resistance.{{cn|date=July 2012}}
 
{| class="wikitable"
|-
! Ductal® Properties
|-
| Compressive Strength
| typically 160-230 MPa... compressive strength in excess of 750 MPa recorded (see: Cyclic loading and Fracture Mechanics of Ductal® concrete, Ehab Shaheen and Nigel G. Shrive, Springer Science+Business Media B.V.2008, Published online: 8 April2008)
|-
| Flexural Strength
| 30-50 MPa
|-
| Young's Modulus (E)
| 55-60 GPa
|-
| Density
| 2.45-2.55 <math>t/m^3</math>
|}
 
== External links ==
* http://www.ductal-lafarge.com/
* http://vsl.com/index.php?option=com_content&view=category&layout=blog&id=24&Itemid=110
 
[[Category:Concrete]]
[[Category:Construction]]

Revision as of 13:38, 5 March 2014

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