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针对排放量最大、利用率最低的(?)级原状湿排粉煤灰(以下简称原状灰)存在的颗粒偏粗、水硬活性差、常温早期强度和低温强度增长慢等缺陷,抚顺市第三建筑公司采取了综合措施,调整改进配合比,采用超量取代水泥法,同时代替部分砂子;在保证混凝土所需性能的前题下,尽量地减少混凝土用水量,降低总水灰比,最大总水灰比W/(C+F)控制在0.6以内;在施工中将原状灰与外
For defects with the largest amount of discharge and the lowest utilization rate (?) of undisturbed wet waste fly ash (hereinafter referred to as original ash), the defects such as coarse grains, poor hydraulic activity, early strength at normal temperature, and low temperature strength increase, etc., Fushun City The three construction companies took comprehensive measures to adjust and improve the mix ratio, using an over-replacement cement method, and at the same time replace part of the sand; under the premise of ensuring the required performance of the concrete, reduce the concrete water consumption as much as possible and reduce the total water-cement ratio, the largest The total water cement ratio W/(C+F) is controlled within 0.6;