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石灰凝灰岩水泥,系以浙江诸暨十里牌的凝灰岩加工处理后与石灰拌合,另加少量石膏制成。十里牌距浙赣线上的诸暨县城为五公里,诸暨到绍兴的公路经过其上,离浦阳江亦只一、二公里,除冬季枯水期外,有舟楫可通,故交通便利;而且该地地势平坦,凝灰岩的上层很少甚至没有复土,开采很容易;蕴藏丰富,估计达二千四百万吨以上。凝灰岩有一定的活性,当以不同温度处理,就有不同的活性,呈现出规律性,而其中以750℃加热处理,活性最高,其每克试样的石灰吸收量为118.53毫克。凝灰岩与消石灰的拌合量,以20—30%最佳,加入少量的某些外加物,特别是加入石膏,对强度以及其他性能,能产生显著的有益影响。
Lime tuff cement is prepared by processing the limestone of Zhuji Shili, Zhejiang, and mixing it with lime, together with a small amount of gypsum. The Shili license is five kilometers from the Zhuji county on the Zhejiang-Jiangxi line. The road from Zhuji to Shaoxing passes through it and is only one or two kilometers away from the Puyang river. In addition to the winter dry season, there are boat links, so the traffic is convenient; and The terrain is flat, and the upper layers of the tuff are very few or even complex soils, making it easy to extract; the rich reserves are estimated at more than 24 million tons. Tuff has a certain activity. When it is treated with different temperatures, it has different activities and shows regularity. Among them, the heat treatment at 750°C has the highest activity, and its lime absorption per gram sample is 118.53 mg. The mixing amount of tuff and slaked lime is preferably 20-30%. Adding a small amount of certain additives, in particular adding gypsum, can have a significant beneficial effect on the strength and other properties.