Ductal
Encyclopedia
Ductal is a proprietary pre-mixed ultra-high performance concrete whose physical characteristics exceed those of common concrete
used in the construction of building
s. It is manufactured by Lafarge
and Bouygues
. Ductal has 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.
The constituents of Ductal are cement, fine sand, silica fume and silica flour as a filler, additive and water, using a low water cement ratio and may include high-strength steel fibres or non-metallic fibres.
Ductal is a ductile material that possesses ultra high compressive strength, high tensile strength and high durability together with high fatigue performance. It also has excellent impact, blast and abrasion resistance. The type and quantities of special materials used in Ductal result in a superior material that can provide innovative and valuable solutions for a wide range of applications; it is not a replacement for ordinary concrete in applications that do not exploit its unique properties and requires performance engineering.
Concrete
Concrete is a composite construction material, composed of cement and other cementitious materials such as fly ash and slag cement, aggregate , water and chemical admixtures.The word concrete comes from the Latin word...
used in the construction of building
Building
In architecture, construction, engineering, real estate development and technology the word building may refer to one of the following:...
s. It is manufactured by Lafarge
Lafarge
Lafarge is a French industrial company specialising in four major products: cement, construction aggregates, concrete and gypsum wallboard. In 2010 the company was the world's second-largest cement manufacturer by mass shipped behind Holcim.-History:...
and Bouygues
Bouygues
Bouygues S.A. is a French industrial group headquartered in the 8th arrondissement of Paris, France. Bouygues is listed on Euronext Paris exchange and is a blue chip in the CAC 40 stock market index. The company was founded in 1952 by Francis Bouygues and since 1989 has been led by his son Martin...
. Ductal has 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.
The constituents of Ductal are cement, fine sand, silica fume and silica flour as a filler, additive and water, using a low water cement ratio and may include high-strength steel fibres or non-metallic fibres.
Ductal is a ductile material that possesses ultra high compressive strength, high tensile strength and high durability together with high fatigue performance. It also has excellent impact, blast and abrasion resistance. The type and quantities of special materials used in Ductal result in a superior material that can provide innovative and valuable solutions for a wide range of applications; it is not a replacement for ordinary concrete in applications that do not exploit its unique properties and requires performance engineering.
| 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 MPa |
| Density | 2.45-2.55  |
External links
- http://www.ductal.com/
- http://www.imagineductal.com/imagineductal/home.asp
- http://www.ductal-lafarge.com/cgi-bin/lafcom/jsp/homeDuctal.do?lang=en
- http://vsl.com/index.php?option=com_content&view=category&layout=blog&id=24&Itemid=110