生产加工严守质量关卡

Strict adherence to quality standards in production and processing

一、原材料精挑细选

1、 Carefully selected raw materials

在济南，水泥稳定碎石生产企业对原材料质量严格把控。水泥多选用初凝时间大于 3h、终凝时间不小于 6h 的 32.5 级或 42.5 级普通硅酸盐水泥、矿渣硅酸盐水泥或火山灰质硅酸盐水泥，确保在施工过程中有足够的操作时间，且水泥硬化后能提供稳定的粘结强度。碎石要求质地坚硬、洁净、无风化颗粒，压碎值不大于 30%，针片状颗粒含量不超过 20%，颗粒级配符合相关规范。例如，山东汇达新型建筑材料有限公司，作为济南路面专业化施工骨干企业，在生产水泥稳定碎石时，选用的水泥碎石完全符合现行国家和有关行业标准，从源头上保障了产品质量。

In Jinan, cement stabilized crushed stone production enterprises strictly control the quality of raw materials. Cement should be selected from 32.5 or 42.5 grade ordinary Portland cement, slag Portland cement, or volcanic ash Portland cement with an initial setting time greater than 3 hours and a final setting time of not less than 6 hours, to ensure sufficient operating time during construction and to provide stable bonding strength after cement hardening. Gravel requires a hard, clean, and non weathered particle texture, with a crushing value of no more than 30%, a needle like particle content of no more than 20%, and a particle grading that meets relevant specifications. For example, Shandong Huida New Building Materials Co., Ltd., as a backbone enterprise in specialized pavement construction in Jinan, uses cement stabilized crushed stone that fully complies with current national and relevant industry standards when producing cement stabilized crushed stone, ensuring product quality from the source.

二、生产工艺精细控制

2、 Fine control of production process

采用集中厂拌的方式生产水泥稳定碎石，配备先进的强制式搅拌机。在生产过程中，依据精确的配合比设计，通过电子计量系统精准控制水泥、碎石、水及外加剂的用量，确保混合料的均匀性和稳定性。同时，严格控制含水量，一般较最佳含水量略高 0.5% - 1.0%，以补偿施工过程中的水分损失。如济南部分大型搅拌站，拥有 800 型双拌锅水稳拌和站，年生产能力可达 300 万吨，月最大供货能力达 30 万吨，凭借先进设备与精细工艺，生产出的水泥稳定碎石强度高、和易性好、离析现象少。

Cement stabilized crushed stone is produced using a centralized factory mixing method, equipped with advanced forced mixers. In the production process, based on precise mix design, the amount of cement, crushed stone, water, and additives is accurately controlled through an electronic metering system to ensure the uniformity and stability of the mixture. At the same time, the moisture content is strictly controlled, generally slightly higher than the optimal moisture content by 0.5% -1.0%, to compensate for the moisture loss during the construction process. Some large-scale mixing plants in Jinan have 800 type double mixing pot water stable mixing plants, with an annual production capacity of up to 3 million tons and a maximum monthly supply capacity of 300000 tons. With advanced equipment and fine technology, the cement stabilized crushed stone produced has high strength, good workability, and less segregation phenomenon.

三、施工流程

3、 Construction process

使用大吨位自卸汽车运输混合料，车辆全程覆盖篷布，防止水分蒸发和沿途扬尘，确保混合料性能稳定。到达施工现场后，采用摊铺机进行摊铺作业。摊铺前，精确调整摊铺机参数，包括熨平板宽度、仰角、工作速度等，保障摊铺厚度均匀、表面平整。在春阳路贯通道路工程三标段施工中，为保证平整度，采用摊铺机联机铺筑，下基层挂钢丝绳，上基层走平衡梁，且严格控制摊铺速度在 2 - 3m/min，匀速前进，避免中途停顿或变速，有效减少了施工质量缺陷。

Use large tonnage dump trucks to transport the mixture, and cover the entire vehicle with tarpaulin to prevent moisture evaporation and dust along the way, ensuring stable performance of the mixture. After arriving at the construction site, use a paver for paving operations. Before paving, accurately adjust the parameters of the paver, including the width, elevation angle, and working speed of the ironing board, to ensure uniform paving thickness and smooth surface. In the construction of the third section of the Chunyang Road through road project, in order to ensure flatness, a paver was used for joint paving. Steel wire ropes were hung on the lower base layer, and a balance beam was used on the upper base layer. The paving speed was strictly controlled at 2-3m/min, moving at a constant speed to avoid stopping or changing speed midway, effectively reducing construction quality defects.

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