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1 引言 由于国民经济的飞速发展,企业技术改造力度进一步加大,耐热砼的应用越来越广泛。但许多地方,由于受自然环境的限制,难于找到理想的粗细骨料配制耐热砼,造成事故不断。为此,正确判断这类事故产生的原因,并提出合理的处理方案,对类似工程具有现实的意义。 2 工程事故概况 某轧钢车间加热炉基础、烟道及烟囱基础设计采用耐热混凝土,混凝土正常使用温度烟道前端850℃,尾端为300-
1 Introduction Due to the rapid development of the national economy, technological transformation efforts to further increase the enterprise, heat-resistant concrete is more and more widely used. However, in many places, due to the restriction of the natural environment, it is difficult to find the ideal coarse and fine aggregates to prepare heat-resistant concrete, resulting in continual accidents. To this end, the correct judgment of the causes of such accidents, and put forward a reasonable solution, a similar project has realistic significance. 2 Overview of a project accident furnace rolling furnace foundation, flue and chimney foundation design using heat-resistant concrete, normal temperature of the concrete flue front 850 ℃, the tail is 300-