强度特性​

Strength characteristics

水稳砼经过水泥的水化反应和压实成型后，能形成较高的强度。其强度增长较为迅速，在短时间内就能达到一定的强度值，满足道路施工进度要求。一般情况下，水稳砼在 7 天龄期时，其无侧限抗压强度可达到设计强度的 70% - 80%，28 天龄期时强度基本稳定，达到设计强度标准值。例如，在济南某城市快速路的水稳砼基层设计中，要求 28 天龄期的无侧限抗压强度不低于 3.5MPa，通过合理的配合比设计和严格的施工控制，实际工程中的水稳砼基层强度均能满足甚至超过这一要求，为道路的长期使用提供了可靠的强度保障。​

After the hydration reaction of cement and compaction molding, water stable concrete can form a high strength. Its strength increases rapidly and can reach a certain strength value in a short period of time, meeting the requirements of road construction progress. In general, the unconfined compressive strength of water stable concrete can reach 70% -80% of the design strength at 7 days of age, and the strength is basically stable at 28 days of age, reaching the design strength standard value. For example, in the design of a water stable concrete base layer for a certain urban expressway in Jinan, it is required that the unconfined compressive strength at 28 days of age should not be less than 3.5 MPa. Through reasonable mix design and strict construction control, the actual strength of the water stable concrete base layer in the project can meet or even exceed this requirement, providing reliable strength guarantee for the long-term use of the road. ​

稳定性优势​

Stability advantage

水稳砼具有良好的稳定性，这得益于其内部水泥与骨料形成的紧密结构。在长期的车辆荷载和自然环境作用下，水稳砼基层不易发生变形、位移等问题。水泥的水化产物填充在骨料的空隙中，使水稳砼形成一个整体，具有较高的抗剪切能力和抗疲劳性能。相比其他一些基层材料，水稳砼在应对温度变化、湿度变化等环境因素时，表现出更好的稳定性，能有效减少道路因基层不稳定而产生的裂缝、坑洼等病害，延长道路的使用寿命。​

Water stable concrete has good stability, thanks to the tight structure formed by its internal cement and aggregates. Under long-term vehicle loads and natural environmental conditions, the water stable concrete base is less prone to deformation, displacement, and other issues. The hydration products of cement fill the gaps in the aggregate, forming a whole of water stable concrete with high shear resistance and fatigue resistance. Compared to other base materials, water stable concrete exhibits better stability in dealing with environmental factors such as temperature and humidity changes, effectively reducing cracks, potholes, and other diseases caused by unstable base layers and extending the service life of roads. ​

耐久性良好​

Good durability

耐久性是水稳砼的重要性能之一。由于水泥的水化反应形成了较为致密的结构，水稳砼具有一定的抗渗性，能有效阻止水分和有害物质的侵入，减少对基层的侵蚀。同时，水稳砼中的水泥与骨料之间的粘结力较强，在长期使用过程中，不易出现骨料脱落、松散等现象。在济南的道路建设中，水稳砼基层的耐久性经过多年的实践检验，在正常的交通荷载和自然环境下，能够保证道路在设计使用年限内保持良好的使用性能，降低道路的维护成本。

Durability is one of the important properties of water stable concrete. Due to the hydration reaction of cement forming a relatively dense structure, water stable concrete has a certain degree of impermeability, which can effectively prevent the invasion of moisture and harmful substances, and reduce the erosion of the base layer. At the same time, the bonding force between cement and aggregates in water stable concrete is strong, and it is not easy for aggregates to fall off or loosen during long-term use. In the road construction in Jinan, the durability of the water stable concrete base has been tested through years of practice. Under normal traffic loads and natural environments, it can ensure that the road maintains good performance during its designed service life and reduce maintenance costs.

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