By using orthogonal test method, the selective study on the mixture proportion about a type of polyurethane concrete was processed.
采用正交试验，对一种聚氨酯混凝土的材料和配合比进行了选择性研究。
Through factors of the various thickness and high degree of the Polyurethane Foam to research and analyse the bond force between the Polyurethane Foam material and fly ash concrete.
通过聚氨酯硬泡的不同厚度与高度因素来对聚氨酯硬泡材料与粉煤灰混凝土之间的粘结力进行研究与分析。
By the comparison, polyurethane modified by organosilicon is the better sealant fitting the cement concrete pavements of China.
通过综合比较，确认有机硅改性聚氨酯是比较适合中国公路情况的填缝材料。
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