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一、三合土在武都的来历及今后的发展三合土是武都县人民长期以来在治理北峪河实践中配制的一种有一定强度,成本低,便于就地取材的半刚性建筑材料。它在空气中碳化,夯实后能把石灰、砂子、粘土等散粒材料凝结成整体,并能在空气中长久的保持和提高其强度。民用建筑中供水基础工程使用;水利多用于季节性泥石流河沟堤防,特别适用于坡陡流急,洪水暴涨暴落、历时短、冲刷强,在泥砂漂石奔泻而下的泥石流河道作堤防、挑坝、圆盘坝等水工建筑。
I. The Origin and Future Development of Sanhe in Wudu Sanhe is a kind of semi-rigid building material with a certain strength, low cost and convenient materials in Wudu County. It is carbonized in the air, solidified to lime, sand, clay and other particulate material condensed into a whole, and in the air to maintain long-term and improve its strength. It is mainly used for seasonal dikes and dikes in dikes and dikes. It is especially suitable for steep slope flow and flood surges and lakes. It lasted for a short time and scour strong. In dikes and mudslides, , Disc dams and other hydraulic construction.