The addition of cement to the filling materials can improve the early strength of the fillers but make the filling cost at a high position.

在充填料中添加水泥，可提高充填料的初期强度，却使充填成本居高不下。

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Addition of silica fume into the mix will result in increasing the workability and strength of cement mortar and decreasing the expansion.

同时掺加硅灰还能够提高掺玻璃纤维高钙粉煤灰水泥砂浆的和易性和强度，并减小其膨胀。

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Mix the foam asphalt mixture on the condition of different cement content and adding order, do splitting strength test and analyze the influence of the cement addition on its moisture sensitivity.

在水泥的不同掺量和不同添加顺序的条件下分别拌和泡沫沥青混合料，并进行劈裂强度试验，分析水泥的添加对其水稳定性的影响。

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