国产人久久人人人人爽|成人精品视频在线观看|亚洲超碰中文无码一道本|亚洲综合a欧美一级免费|久久精品国产福利国产秒拍|国产福利在线观看一区二区|国产激情对白一区二区三区四|五月丁香婷婷中文字幕制服丝袜

Welcome to Changzhou Kapuwei Machinery Co.,LTD  Chinese  English CollectionSales outlets Contact us

Professional road cutting machine manufacturers

Many years of road cutting machine experience

Hotline :

139-1432-7823

Current Position:Home>>Honor

Winter construction of roads

Publish:kapuwei    Time:2017/10/5    Read:【3501】

 

零度以下、土壤為凍土、室外3 7灰土墊層是不可以施工的,即使采取保溫措施,強行施工也會留下質(zhì)量隱患,處理是非常麻煩的。 可以同建設(shè)方商議變更設(shè)計,改為級配碎石墊層。如果是砼面層,施工時正溫趕光收水,夜間加強保溫。