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1959年我省在南京和无锡两地建立了两个硅酸盐砖厂,利用电厂煤灰生产非蒸压粉煤灰砖,而以无锡厂生产的粉煤灰砖强度较高,通过对比分析,我们认为,要提高非蒸压硅酸盐砖的质量,除注意控制原料质量、原料配比、加水量和养护制度外,还应注意以下两点:1.采用湿碾南京硅酸盐厂生产粉煤灰空心砖时,将煤灰进行干磨,再振动成型,产品质量只40号左右。无锡硅酸盐砖厂采用湿法轮碾,用人工
In 1959, the province established two silicate brick factories in Nanjing and Wuxi, and used non-autoclaved fly ash bricks from power plant coal ash. The strength of fly ash bricks produced by Wuxi plant was relatively high. We believe that in order to improve the quality of non-autoclaved silicate bricks, in addition to controlling the quality of raw materials, the ratio of raw materials, the amount of water added, and the maintenance system, we should also pay attention to the following two points: 1. Wet milling of Nanjing Silicate Factory When fly ash hollow bricks are produced, the coal ash is dry ground and then vibrated to form a product with a quality of only about 40 meters. Wuxi Silicate Brick Factory adopts wet wheel grinding and uses artificial