中国传统灰土灰浆强度增强方法研究

Research on the intensity strengthening of Chinese traditional lime-clay mortar

中国传统灰土灰浆中水硬性凝胶材料—水合硅酸钙和水合硅酸铝的形成可以大幅度提高其强度,但在自然条件下生成此类水硬性化合物需要很长时间。本文借鉴现代水泥工艺中利用焙烧黏土材料可提高火山灰活性的原理,从而有效缩短形成水硬性化合物的反应时间,在短时间内大大提高灰浆的强度。以此为出发点,加工制备性能优良的灰浆材料,为传统砌体建筑的保护提供适宜的保护修复材料。

The formation of hydraulic gel materials in the Chinese traditional lime-clay mortar, namely hydrated calcium silicate and hydrated alu- minum silicate, can significantly increase the strength of mortar. However, it will take an extremely long period to generate these kinds of water rigid compounds under natural conditions. Inspired by the idea of improving the pozzolanie activity by roasting the clay material, a basic principle modern cement technology, this paper explores a method to reduce the formation time of hard water compounds, and then, to improve the intensity of the mortar in a short time. The result of this research is expected to improve the physical properties of traditional lime-clay mortar for a better application in the conservation of traditional brickwork.