| 摘要 |
<p>#CMT# #/CMT# A fiber added high performance concrete, with a melting point lower than 300 o>C, preferably lower than 250 o>C, most preferably lower than 200 o>C, is used for the production or protection of structural elements resistant to extreme temperature conditions. The concrete has a thermal dilation curve with at least one maximum and/or includes granular elements of calcined bauxite. The concrete is not subjected to bursting whilst submitted to a temperature of at least 950 o>C, preferably at least 1000 o>C, most preferably at least 1300 o>C, for at least one hour. #CMT# : #/CMT# Independent claims are also included for the following: (1) a double layer structural component or element with a first layer of reinforced concrete and a second layer of concrete as above; and (2) the production of the above structural component or element. #CMT#USE : #/CMT# The double layer structural elements incorporating a layer of concrete is used for tunnel archstones, tunnel elements, power stations, nuclear power stations, oil platforms, retaining basins for chemical products, waste containers, radioactive waste containers, petrol refineries, petrol pumps, underground parking and anti-noise walls and ceilings for roads (all claimed). #CMT#ADVANTAGE : #/CMT# A fiber added high performance concrete is obtained for the production or protection of structural elements resistant to extreme temperature conditions, notably up to at least 1300 o>C for up to 1 hour. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing is a graphical representation of thermal dilation coefficients from 0 to 600 o>C for a concrete according to the invention (B) together with comparable theoretical curves for other materials. (Drawing includes some non-English language text). #CMT#CERAMICS AND GLASS : #/CMT# Preferred Reinforcement: The fiber reinforcement used in the concrete may be of organic fibers, such as polypropylene, or metal fibers (claimed).</p> |
