首页> 外文会议>Biennial worldwide conference on unified international technical conference refractories;UNITECR 2009 >A NEW INSIGHT INTO THE CHARACTERIZATION OF AGEING AND MECHANISMS THAT DETERMINE THE SHELF LIFE OF LOW CEMENT CASTABLES
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A NEW INSIGHT INTO THE CHARACTERIZATION OF AGEING AND MECHANISMS THAT DETERMINE THE SHELF LIFE OF LOW CEMENT CASTABLES

机译:新的表征老化和确定低水泥稳定寿命的机理

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摘要

Ageing is a generic name to describe interactions between a cement and the atmosphere and its impact on cement reactivity and castable properties. Ageing potentially occurs in all dry mixes but in the case of refractory monolithics its impact is much more evident in formulations containing lower amounts of binders like low or ultra-low cement castable. It often determines the effective shelf life of cement and low cements castables. The ageing process affects calcium alumina cement (CAC) from its production site to the point of use to produce the dry mix, and continues to affect the dry mixed castable itself once it is packed within its bag with all formulation components.
机译:老化是描述水泥与大气之间的相互作用及其对水泥反应性和可浇铸性能的影响的通用名称。老化可能发生在所有干混料中,但在耐火整体材料的情况下,其影响在含有少量粘结剂(如低或超低水泥浇注料)的配方中更为明显。它通常决定水泥和低水泥浇注料的有效货架期。时效过程会从其生产现场影响到生产干燥混合物的使用地点的氧化铝钙水泥(CAC),并且一旦将其与所有配方成分一起包装在袋子中,就会继续影响干燥混合的浇注料本身。

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