水泥稳定碎石的强度检测标准主要涉及无侧限抗压强度，这一标准通常遵循国家的相关规定和试验方法。以下是对水泥稳定碎石强度检测标准的详细解读：

　　The strength testing standards for cement stabilized crushed stone mainly involve unconfined compressive strength, which usually follows relevant national regulations and testing methods. The following is a detailed interpretation of the strength testing standards for cement stabilized crushed stone:

　　一、强度检测要求

　　1、 Strength testing requirements

　　强度指标：

　　Intensity index:

　　水泥稳定碎石的强度主要通过无侧限抗压强度来评价。不同级别的水泥稳定碎石在特定龄期（如28天）下的无侧限抗压强度有不同的最小值要求。例如，国家标准GB/T 17671-1999《水泥稳定砂石料》中规定了不同级别水泥稳定碎石的抗压强度标准，其中低于1.5MPa的级别可用于基层，高于1.5MPa的级别适用于路面结构。

　　The strength of cement stabilized crushed stone is mainly evaluated by its unconfined compressive strength. Different levels of cement stabilized crushed stone have different minimum requirements for unconfined compressive strength at specific ages (such as 28 days). For example, the national standard GB/T 17671-1999 "Cement Stabilized Sand and Gravel" specifies the compressive strength standards for different grades of cement stabilized crushed stone, with grades below 1.5 MPa applicable to the base layer and grades above 1.5 MPa applicable to the pavement structure.

　　试验方法：

　　Test method:

　　无侧限抗压强度试验是检测水泥稳定碎石强度的常用方法。该试验将标准试样在规定的湿度条件下进行压缩，测量试样破坏前的最大荷载，并计算出其抗压强度值。

　　Unconfined compressive strength test is a commonly used method for testing the strength of cement stabilized crushed stone. This experiment compresses the standard specimen under specified humidity conditions, measures the maximum load before the specimen fails, and calculates its compressive strength value.

　　二、检测步骤与注意事项

　　2、 Testing steps and precautions

　　试验准备：

　　Preparation for the experiment:

　　按照规定的方法制备试件，并在标准养护条件下进行养护，直至达到规定的龄期。

　　Prepare the specimens according to the prescribed method and cure them under standard curing conditions until the specified age is reached.

　　准备试验所需的仪器设备，如万能材料试验机、游标卡尺、电子天平等。

　　Prepare the necessary instruments and equipment for the experiment, such as universal material testing machine, vernier caliper, electronic balance, etc.

　　试验步骤：

　　Experimental steps:

　　将试件从养护环境中取出，并用软布吸去试件表面的水分。

　　Remove the specimen from the curing environment and use a soft cloth to absorb any moisture from the surface of the specimen.

　　测量试件的高度和直径，并记录数据。

　　Measure the height and diameter of the specimen and record the data.

　　将试件放置在万能材料试验机的球形支座上，并进行压缩试验。

　　Place the specimen on the spherical support of the universal material testing machine and conduct a compression test.

　　记录试件破坏时的最大压力，并根据公式计算出无侧限抗压强度。

　　Record the maximum pressure at which the specimen fails and calculate the unconfined compressive strength according to the formula.

　　注意事项：

　　Attention:

　　在试验过程中，应保持加载速率恒定，避免过快或过慢导致试验结果不准确。

　　During the experiment, the loading rate should be kept constant to avoid inaccurate test results caused by being too fast or too slow.

　　同一组试件的试验结果应进行统计分析，剔除异常值，并计算强度平均值和变异系数。

　　The test results of the same group of specimens should be statistically analyzed, outliers should be removed, and the average strength and coefficient of variation should be calculated.

　　如试验结果不符合要求，应重新制备试件并进行试验。

　　If the test results do not meet the requirements, the specimens should be prepared again and tested.

　　三、强度检测标准的实际应用

　　3、 Practical Application of Strength Testing Standards

　　工程质量验收：

　　Engineering quality acceptance:

　　在道路工程中，水泥稳定碎石的强度检测是工程质量验收的重要环节。通过检测无侧限抗压强度，可以判断水泥稳定碎石的质量是否符合设计要求。

　　In road engineering, the strength testing of cement stabilized crushed stone is an important part of engineering quality acceptance. By testing the unconfined compressive strength, it can be determined whether the quality of cement stabilized crushed stone meets the design requirements.

　　施工控制：

　　Construction control:

　　在施工过程中，通过定期检测水泥稳定碎石的强度，可以及时发现施工中的问题并采取相应措施进行纠正。这有助于确保施工质量和工程进度。

　　During the construction process, by regularly testing the strength of cement stabilized crushed stone, problems can be identified in a timely manner and corresponding measures can be taken to correct them. This helps ensure construction quality and project progress.

　　科研与改进：

　　Research and improvement:

　　通过研究水泥稳定碎石的强度检测标准和方法，可以推动相关技术的改进和创新。这有助于提高道路工程的整体质量和耐久性。

　　By studying the strength testing standards and methods for cement stabilized crushed stone, it can promote the improvement and innovation of related technologies. This helps to improve the overall quality and durability of road engineering.

　　综上所述，水泥稳定碎石的强度检测标准是一个复杂而重要的过程，涉及多个方面的要求和注意事项。通过遵循这些标准和要求，可以确保水泥稳定碎石的质量符合设计要求，并保障道路工程的安全和稳定性。

　　In summary, the strength testing standards for cement stabilized crushed stone are a complex and important process that involves multiple requirements and precautions. By following these standards and requirements, it is possible to ensure that the quality of cement stabilized crushed stone meets design requirements and guarantees the safety and stability of road engineering.

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