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内燃烧砖可以节约燃料,增加产量,但内燃砖的强度和抗冻性等质量指标究竟比外燃砖提高了?还是降低了?下面就来探讨一下这些问题。(一)抗压强度根据去年下半年和今年江苏省已全面推广内燃烧砖的10个重点砖瓦厂烤出的砖的检验结果(表1),内燃砖的抗压强度普遍比外燃砖高。只一个厂没有提高,也没有降低。有两个厂略为降低了一些,这是由于这两厂的原料土塑性较差的缘故。
Internal combustion bricks can save fuel and increase production. However, are the quality indicators such as strength and frost resistance of internal combustion bricks higher than those of external combustion bricks? Or are they reduced? Let’s explore these issues. (I) Compressive strength According to the inspection results of bricks baked by ten key brick and tile factories in the second half of last year and this year in Jiangsu province, the compressive strength of internal combustion bricks is generally higher than that of externally fired bricks (Table 1). high. Only one plant did not increase or decrease. There are two plants that have slightly lowered some of them, due to the poor plasticity of the raw materials of the two plants.