Sunday, November 15, 2009

PROPOSAL

Determine a concrete composition capable of eliminating traditional formwork and traditional bar reinforcement in order to rapidly and economically produce structural complex doubly-curved surfaces.  It is proposed that Carbon Nanotube technology be employed in place of traditional reinforcement to ensure the feasibility of any degree curve.  In relation to studies and the experience of Lafarge and VSL, whose steel fibre reinforced product is commonly known as Ductal, it is also proposed that no aggregate greater than 1cm (only fine, pure aggregate).  Additionally, the concrete composition would need to utilize admixtures to ensure that the concrete is self-compacting.  Should a particular section require multiple pours of successive and gradual strength, a water-reducing retarding admixture will ensure the cohesion of the separate 'lifts.'  Where necessary, thermoformed fabric formwork should be used in conjunction with multiple lifts.  As technology advances, this application should adapt to new and desired CNT shapes which exhibit ever-increasing strength and durability.

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