很多项目经理把水稳当成“水泥拌石子”的粗活，报价单上只比每方单价。可真到钻芯那天，取不出完整芯样、7天强度差零点几兆帕，整段基层就得返工——省下的材料钱，还不够一台铣刨机跑两趟。

Many project managers treat water stabilization as a rough job of "mixing cement with gravel", and the quotation only includes the unit price per cubic meter. On the day of core drilling, if a complete core sample cannot be obtained and the strength difference is a few megapascals after 7 days, the entire base layer will have to be reworked - the saved material money is not enough for one milling machine to run twice.

水稳层真正吃功夫的是四件事：

There are four things that truly require effort in the water stable layer:

级配要连得上：碎石得用连续级配，粗料做骨架、细料填缝。0.075mm以下粉料别超5%，含泥量高了不仅强度上不去，干缩裂缝还会像蜘蛛网一样爬满路面。

The grading should be connected: continuous grading should be used for crushed stones, with coarse materials as the skeleton and fine materials for filling the joints. Powder below 0.075mm should not exceed 5%. If the mud content is high, not only will the strength not improve, but shrinkage cracks will also crawl over the road like spider webs.

水泥剂量别乱加：市政基层一般3%到5%，重交通路段也不建议超过6%。很多人以为“多放水泥更结实”，其实剂量一高，基层反而容易脆裂，后期反射到沥青面层全是横向缝。

Do not add cement randomly: the dosage for municipal grassroots is generally 3% to 5%, and it is not recommended to exceed 6% for heavy traffic sections. Many people think that "adding more cement makes it stronger", but in fact, with a higher dosage, the base layer is more prone to brittle cracking, and later reflected to the asphalt surface layer are all transverse joints.

含水率卡在非常佳值附近：拌合时比非常佳含水率高0.5%到1%就行。夏天从商河拌合站拉到市区工地，车厢建议盖篷布，水分蒸发太快，到现场就是一堆干散料，压路机怎么碾都压不实。

The moisture content is stuck near the optimal value: when mixing, it only needs to be 0.5% to 1% higher than the optimal moisture content. In summer, when transporting from the Shanghe mixing station to the construction site in the city, the carriages must be covered with tarpaulins. The water evaporates too quickly, and when they arrive at the site, they are just a pile of dry and loose materials that cannot be compacted by the road roller no matter how hard it is.

时间链卡死2小时：从加水拌合到突出结束，尽量在水泥初凝前干完。摊铺机别停机等料，突出跟着“先轻后重、先边后中”走，压完一遍测一次压实度，基层要求≥98%，底基层≥97%。

Time chain stuck for 2 hours: From mixing with water to the end of rolling, try to finish before the initial setting of the cement. Do not stop the paver and wait for materials. The compaction should follow the principle of "light first, heavy later, edge first, middle later". After compaction, measure the compaction degree once. The base layer should be ≥ 98%, and the sub base layer should be ≥ 97%.

非常容易被忽略的是养生。压完不是完工，是刚开始。立刻盖土工布加喷雾洒水，保湿7天，期间连洒水车都不准直接冲表面。很多小区路交付半年就起砂，根子就是前三天没人浇水。

The most easily overlooked aspect is health preservation. Finishing is not the end, it's just the beginning. Immediately cover with geotextile and sprinkle with spray for 7 days, during which even the sprinkler is not allowed to directly flush the surface. Many residential roads start to sand after half a year of delivery, and the root cause is that no one watered them in the first three days.

济南本地有800型水稳拌合站和自有运输队的厂家，能按你图纸强度反推配比、带配合比报告送货，比找小搅拌点自拌稳得多。

There are local 800 type water stable mixing stations and manufacturers with their own transportation teams in Jinan. They can deduce the mix ratio according to your drawing strength and deliver the goods with a mix ratio report, which is much more stable than finding a small mixing point for self mixing.

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This article is a friendly contribution from Jinan Cement Stabilized Crushed Stone For more information, please click: http://www.ycgjglcl.com We will provide detailed answers to your questions. You are welcome to log in to our website and leave a message