水泥稳定碎石一立方的质量取决于配合比和集料的具体类型。根据提供的信息，5%水泥稳定碎石的质量大致如下：

　　The quality of one cubic meter of cement stabilized crushed stone depends on the mix proportion and the specific type of aggregate. According to the provided information, the quality of 5% cement stabilized crushed stone is roughly as follows:

　　水泥：集料 = 5:100，即水泥为集料质量的5%。

　　Cement: Aggregate=5:100, which means cement accounts for 5% of the aggregate mass.

　　水泥稳定碎石的质量范围大致在2.1到2.5吨每立方米之间。

　　The quality range of cement stabilized crushed stone is roughly between 2.1 and 2.5 tons per cubic meter.

　　因此，对于5%水泥稳定碎石，一立方的质量大约在2.4吨左右。这个数值是一个近似值，实际的质量可能会根据具体的配合比、集料种类和颗粒级配有所变化。

　　Therefore, for 5% cement stabilized crushed stone, the mass of one cubic meter is approximately 2.4 tons. This value is an approximate value, and the actual quality may vary depending on the specific mix proportion, aggregate type, and particle size distribution.

　　如果您需要更精确的计算，请提供具体的配合比和集料信息，以便进行更准确的计算

　　If you need more accurate calculations, please provide specific mix proportions and aggregate information for more accurate calculations

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