在气候严寒地区进行混凝土冬季施工时,除了必须对混凝土进行热养护之外,在个别情况下,为了减少混凝土热损失,还需要在混凝土浇灌前对与混凝土接触的模板、钢筋和土壤进行予热。这种予热工作通常需要架设复杂的供汽管线,管线本身又要进行保温处理;若采用电热器加温时,由于环境气温很低,热损失必然很大。作者建议采用一种简易的小型蒸汽发生设备(见图1),它对于小量的混凝土冬施工程是经济适用的。 When concrete is used in winter in cold climate areas, in addition to the need to heat-treat the concrete, in some cases, in order to reduce the heat loss of the concrete, it is necessary to preheat the formwork, steel bars, and soil in contact with the concrete before the concrete is poured. . This kind of preheating work usually needs to set up complicated steam supply pipelines, and the pipeline itself must be insulated. If the electric heater is used for heating, the heat loss is inevitably large due to the low ambient temperature. The authors recommend the use of a simple, small-scale steam generation facility (see Figure 1) that is economically viable for a small amount of concrete winterization work.