Self-flow refractory mixture

Abstract

The invention relates to a refractory self-flow filler mortar, comprising in mass % with relation to the basic refractory material, at least 1% and at most 10% of non-granulated spherical particles with average size greater than 0.1 [mu]m and less than or equal to 2 mm and further comprising in mass % with relation to the total dry mass of the mortar, less than 4.5% of silica (SiO2) and between 1% and 8% water, the standard deviation of the non-granulated spherical particle size being less than 100%.

Description

technical field [0001] The invention relates to self-flowing refractory mortar, in particular to preparing sintered refractory cement or concrete, and using the mortar to fill holes with a hole width less than 25mm through self-flowing. Background technique [0002] Refractory self-flowing mortars called "self-flowing" according to the term defined by the ASTM C71 standard "Standard Terminology Relating to Refractory Materials" are those that can be operated without vibration and without external energy input, while not causing segregation wet mixture. [0003] These mortars are therefore particularly useful in applications where vibration or compression is difficult, or even impossible, such as for filling small confined voids or cracks less than 25 mm in width, more typically less than 10 mm in width. In practice, vibration or filling tools cannot enter such voids. In order to be able to fill such voids substantially completely, refractory self-flowing mortars known as "...

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Problems solved by technology

This amount is particularly detrimental for corrosion resistance

[0015] In addition, spheroidized particles (such as those given in JP3-115,176 or JP11-092,241) generally have a size distribution with a width greater than 100%, as specified in these applications, is a limitation for use, and lead to increased water addition

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