济南水稳砼选购指南：小区路、市政路、高速路，不同道路该怎么选？

　　Jinan Water Stable Concrete Selection Guide: How to choose different roads such as residential roads, municipal roads, and highways?

　　在济南修路，水稳层是关键的基础环节，就像盖房子要打好地基一样重要。很多人搞不清楚不同道路该用哪种水稳砼，选不对不仅影响道路质量，还会增加后期维修成本。其实根据道路类型和交通量，选择合适的水稳砼并不难，今天就给大家详细讲讲。

　　In road construction in Jinan, the water stable layer is a key foundation link, just as building a house requires laying a good foundation. Many people are confused about which type of water stable concrete to use for different roads. Choosing the wrong one not only affects road quality but also increases maintenance costs in the later stages. Actually, it is not difficult to choose the appropriate water stable concrete based on road type and traffic volume. Today, I will explain it in detail to you.

　　首先要明白，水稳砼就是水泥稳定碎石或水泥稳定砂砾，它的作用是增强道路基层的强度和稳定性，防止路面沉降、开裂。不同道路对水稳层的要求差异很大，不能一概而论。

　　Firstly, it should be understood that water stable concrete is cement stabilized crushed stone or cement stabilized gravel. Its function is to enhance the strength and stability of the road base, prevent pavement settlement and cracking. The requirements for water stable layers vary greatly among different roads and cannot be generalized.

　　如果是小区内部道路、庭院道路，这类道路车流量小，基本没有重载车辆，对水稳层的强度要求不高。可以选择水泥稳定砂砾，水泥掺量一般在 3%-5%，既能满足使用需求，又能控制成本。这种水稳砼施工简单，后期维护也方便。

　　If it is an internal road or courtyard road in the community, the traffic flow on these roads is small, there are basically no heavy-duty vehicles, and the strength requirements for the water stable layer are not high. Cement stabilized gravel can be chosen, with a cement content generally between 3% and 5%, which can meet the usage requirements and control costs. This type of water stable concrete construction is simple and easy to maintain in the later stage.

　　乡村公路和乡镇道路，交通量中等，偶尔会有农用车辆或小型货车经过。建议使用水泥稳定级配碎石，水泥掺量提高到 5%-6%，这样能增强基层的承载能力，防止道路过早损坏。而且级配碎石的稳定性更好，能适应乡村道路的复杂路况。

　　Rural roads and township roads have moderate traffic volume, and occasionally agricultural vehicles or small trucks pass by. It is recommended to use cement stabilized graded crushed stone, with a cement content increased to 5% -6%, which can enhance the bearing capacity of the base layer and prevent premature damage to the road. Moreover, graded crushed stone has better stability and can adapt to the complex road conditions of rural roads.

　　城市次干道和支路，车流量较大，有一定数量的小型汽车和公交车通行。这类道路的水稳层需要更高的强度和稳定性，应该选择水泥稳定级配碎石，水泥掺量在 6%-7%。同时要严格控制骨料的级配和含泥量，确保水稳层的质量，为沥青面层提供良好的支撑。

　　Urban secondary roads and branches have a large traffic volume, with a certain number of small cars and buses passing through. The water stable layer of such roads requires higher strength and stability, and cement stabilized graded crushed stone should be selected with a cement content of 6% -7%. At the same time, it is necessary to strictly control the grading and mud content of the aggregates to ensure the quality of the water stable layer and provide good support for the asphalt surface layer.

　　城市主干道和快速路，交通量大，重载车辆多，对水稳层的要求最高。必须采用高质量的水泥稳定级配碎石，水泥掺量不低于 7%，甚至可以达到 8%。骨料要选用坚硬、耐磨的玄武岩或辉绿岩，级配要连续均匀，这样才能保证水稳层的高强度和耐久性，减少道路病害的发生。

　　Urban main roads and expressways have high traffic volume and a large number of heavy-duty vehicles, requiring the highest level of water stability. High quality cement stabilized graded crushed stone must be used, with a cement content of no less than 7%, and even up to 8%. The aggregate should be selected from hard and wear-resistant basalt or diabase, and the grading should be continuous and uniform to ensure the high strength and durability of the water stable layer and reduce the occurrence of road diseases.

　　对于高速公路，水稳层的质量直接关系到道路的使用寿命和行车安全。通常采用水泥稳定级配碎石，水泥掺量在 7%-9%，并且要分层施工，每层厚度控制在 18-20 厘米，分层碾压密实。同时要做好水稳层的养生工作，确保其强度能充分发展。

　　For highways, the quality of the water stable layer is directly related to the service life and driving safety of the road. Usually, cement stabilized graded crushed stone is used, with a cement content of 7% -9%, and layered construction is required, with each layer thickness controlled at 18-20 centimeters, and compacted layer by layer. At the same time, it is necessary to do a good job in the health preservation of the water stable layer to ensure that its strength can be fully developed.

　　在济南选择水稳砼，还要考虑当地的原材料情况和施工条件。济南周边有丰富的石料资源，选择本地优质的骨料能降低成本。施工时要严格按照配合比进行拌合，控制好含水量和碾压遍数，确保水稳层的压实度和强度达到设计要求。

　　When choosing water stable concrete in Jinan, it is also necessary to consider the local raw material situation and construction conditions. There are abundant stone resources around Jinan, and choosing high-quality local aggregates can reduce costs. During construction, it is necessary to strictly follow the mixing ratio, control the moisture content and rolling times, and ensure that the compaction degree and strength of the water stable layer meet the design requirements.

　　总之，济南水稳砼的选择要根据道路类型、交通量和使用要求来确定，不能盲目追求高强度，也不能为了省钱而降低标准。选对了水稳砼，才能建设出质量可靠、使用寿命长的道路，为济南的城市发展和交通便利提供保障。

　　In short, the selection of Jinan water stable concrete should be determined based on road type, traffic volume, and usage requirements. High strength should not be blindly pursued, and standards should not be lowered in order to save money. Only by selecting the right water stable concrete can we build roads with reliable quality and long service life, providing guarantees for the urban development and transportation convenience of Jinan.