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Heading: 1.1.1.1high temperature resistant concrete
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How can we make concrete resistant to very high temperatures (hundreds of degrees) ? Can addition of nano particles help in this case?


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deepika goparaju


Certainly you could use high aluminous cement concrete with a variety of different aggregate types. With respect to increasing the working temperatures and extending the service life of portland cement concrete, there has been some work published on the positive results of vacumn dewatering the freshly placed concrete. I would suspect that the addition of nano particles would also help in this case, but have no specific knowledge of their application here.
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James Mross


Along with refractory cements, expanded shale, slate and clay lightweight aggregates utilized in the mixture as coarse and fine aggregates are highly heat resistant.

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Bruce Jones


There is a cement technology called FireRok. Within 72 hours of placement, concrete made from FireRok can be exposed to intermittent high temperature environments up to 1800ºF. It can be mixed using conventional drum mixers and is placed and finished like traditional portland cement concrete. It has been designed for areas which are exposed to high temperatures either from an intermittent or a continuous heat source. This would include runway areas exposed to jet blast, HPUs, oven and metal casting areas. Plus, the cement is 100% recycled.
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Rich Gardner
 
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