过火考古土遗址理化性能与其过火温度的关系

Relationship between physical and chemical properties of burned archaeological sites and their temperature

在古代建筑土遗址中,有一种经过火烧形成的红烧土遗迹,这种遗迹的土体风化有自己的特性,但缺乏研究。为深入研究不同焙烧温度下红烧土遗址的自身特征,在河南郑州大河村红烧土房基遗址附近选取次生黄土,模拟制备100~900℃九组红烧土样品。通过分析不同温度下红烧土样品的烧失率、外观颜色、矿物成分、微观形貌、比表面积、机械强度等物理化学性能的差异,总结出红烧土自身性能与烧结温度之间的关系,为保护考古发掘红烧土遗址本体提供科学依据。

Among the ancient architectural earthen sites,there is a remnant of red burnt earth formed by fire.The weathering of this relic has its own characteristics,but it lacks research. In order to deeply study the characteristics of the red-burnt soil sites under different roasting temperatures,secondary loess was chosen near the site of the red-burnt soil in the Dahe Village,Zhengzhou,Henan Province,and nine groups of red-burnt soil samples were prepared at 100℃ ~ 900℃. By analyzing the differences in physical and chemical properties such as the burn-off rate,appearance color,mineral composition,micro-morphology,specific surface area,and mechanical strength of brazing soil samples at different temperatures,the relationship between the brazing properties and the sintering temperature was summarized. Protection of archeological excavations on the site of the burial site provides scientific evidence.