一种新型土遗址加固材料的制备及加固效果评价

The preparation of a new consolidation material for earthen archaeological site and the evaluation of its effectiveness

通过合成一种丙烯酸-有机硅-环氧树脂体系的土遗址加固材料,将其应用于成都金沙土遗址土样的加固试验。通过对加固前后土样的重量、颜色、透气性、耐溶剂性、抗水解性和耐盐安定性等主要性能的分析,评价了加固效果。结果表明,所合成的加固材料对土样具有良好的加固效果。在不影响土样颜色和透气性的前提下,其耐溶剂性、抗水解性和安定性有明显改善。加固后土样在盐酸和氯化钠溶液中长期浸泡半个月无任何开裂,而且能够经历10个抗水解性循环和5个抗硫酸钠溶液循环而不会开裂崩塌。

A consolidation material by synthesising acrylic-organic silicon-epoxy resin has been prepared and applied in the test of reinforcement for clay samples of the Jinsha site. The effectiveness has been checked through the properties of clay samples tested on the changes of weight, color, gas permeability, solvent resistance, water resistance and salt resistance. It revealed that clay samples treated with the new material have an outstanding effect on solvent resistance, water resistance and salt resistance without the change of color and gas permeability. The treated clay samples can go through in the hydrochloric acid and sodium chloride without any cracks for half a month. They also can experience ten cycles of water resistance and five cycles of salt resistance.