选沥青供货方，别只比“每吨单价”。热拌混合料从出料到突出，是一条温度链，断一节，后期车辙、松散、井盖周边脱空全冒出来。

Choose an asphalt supplier, don't just compare the "unit price per ton". The hot mix material is a temperature chain from discharge to compaction, with one section broken, and later ruts, looseness, and voids around the manhole cover all emerge.

先按场景定配方，不拿一种料管全场：

First, customize the recipe according to the scene, without using a single ingredient to manage the entire venue:

小区/园区支路：AC-13 普通沥青够用，轻交通不堆成本；

Community/park branch road: AC-13 ordinary asphalt is sufficient, light transportation does not incur additional costs;

市政主干、公交站台、物流园门口：SBS 改性沥青，软化点、低温延度按 JTG F40 卡；

Municipal backbone, bus stop, logistics park entrance: SBS modified asphalt, softening point, low temperature ductility according to JTG F40 card;

重载厂区：中下面层用 AC-20/AC-25 粗骨架，抗车辙优先；

Heavy load factory area: AC-20/AC-25 coarse skeleton is used for the middle and lower layers, with priority given to anti rutting;

坑槽应急：冷补料可临时救场，不替代结构层。

Pit emergency: Cold replenishment material can temporarily rescue the site and does not replace the structural layer.

技术协议里建议写死的参数：

The parameters that must be written in the technical agreement are:

出厂温度：基质沥青 140–165℃，改性 170–185℃，低于 130℃作废；

Factory temperature: Base asphalt 140-165 ℃, modified 170-185 ℃, invalid below 130 ℃;

油石比波动 ±0.3% 内，级配关键筛孔（4.75/2.36/0.075mm）落规范中值；

The fluctuation of the oil stone ratio is within ± 0.3%, and the key sieve holes of the grading (4.75/2.36/0.075mm) fall below the standard median;

马歇尔指标：空隙率 3%–5%、稳定度≥8kN、水稳定性留报告；

Marshall index: porosity of 3% -5%, stability ≥ 8kN, water stability retention report;

运输：保温篷布全覆盖，到场温度普通料≥135℃、改性≥150℃。

Transportation: The insulation tarpaulin is fully covered, and the on-site temperature is ≥ 135 ℃ for ordinary materials and ≥ 150 ℃ for modified materials.

济南本地项目，优先看“厂在周边+自有保温车+能驻场”：

For local projects in Jinan, priority should be given to "factory in the surrounding area+self owned insulation vehicle+on-site capability":

长途运输超 1 小时，温差大、离析风险高；

Long distance transportation exceeding 1 hour, with large temperature differences and high risk of segregation;

雨季/冬初施工，没温控记录别卸车；

Construction during rainy season/early winter, do not unload without temperature control records;

拌合站带实验室，每批出配合比报告、抽提筛分、芯样压实度。

The mixing station is equipped with a laboratory, which produces a mix proportion report, extraction screening, and core sample compaction for each batch.

验收当场卡五项：温度、外观无花白料、厚度、压实度（≥98%马歇尔标准）、渗水系数。平整度、构造深度、弯沉留交工检测。

On site acceptance card for five items: temperature, appearance without white material, thickness, compaction degree (≥ 98% Marshall standard), and water permeability coefficient. Flatness, structural depth, and deflection shall be inspected upon completion.

合同里把“材料+施工同责”写清：只卖料不接摊铺的，出问题容易扯皮；本地有基地、有市政资质、能调峰保供的，才适合连续摊铺。

In the contract, it is clearly stated that "materials+construction are equally responsible": if only materials are sold without paving, problems may easily lead to disputes; Only those with local bases, municipal qualifications, and the ability to regulate and ensure supply are suitable for continuous paving.

省下的差价，不够一次铣刨返工。

The saved price difference is not enough for one milling rework.