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文章着重研究了适用于超重轴载和特重交通量条件下的耐碱玻璃纤维混凝土及钢纤维混凝土的耐久性。河北宣大高速公路滑模摊铺混凝土路面5年观测和山西108国道二级公路3辊轴机组施工水泥混凝土路面试验路段1年观测表明:在我国超重轴载、特重交通量条件下能够采用低造价小掺量耐碱玻璃纤维代替昂贵的大掺量钢纤维补强混凝土路面,在超重轴载和重交通条件下,贫混凝土基层显现了更大的优越性。
The paper focuses on the durability of alkali-resistant glass fiber reinforced concrete and steel fiber reinforced concrete under the conditions of overweight and heavy traffic. 5-year observation of sliding mode paving concrete pavement of XuanDa Expressway in Hebei Province and construction of 3-roller shaft of Grade II highway of State Highway 108 in Shanxi Province 1-year observation shows that under the conditions of overweight axle load and special heavy traffic in China, Low-cost, low-volume alkali-resistant glass fiber instead of expensive high-volume steel fiber reinforced concrete pavement, under the conditions of overweight axle load and heavy traffic, lean concrete base showed greater superiority.