论文部分内容阅读
针对严寒地区铺筑传统的普通道面混凝土施工和易性不易控制、强度储备偏低、道面表面品质差、抗冻耐久性不良等现象,通过掺加粉煤灰、引气剂、减水剂等外掺剂配制高性能道面混凝土。室内试验和现场应用效果均表明:与普通道面混凝土相比较,掺粉煤灰、引气减水剂的高性能道面混凝土施工方便,匀质性好,强度和抗冻性能均有显著提高。建议在严寒、寒冷地区修建的机场道面工程应大力推广应用掺外掺剂的高性能混凝土。
Aiming at the problems that traditional pavement concrete construction in harsh area is difficult to control, ease of strength control, low strength reserve, poor pavement surface quality and poor anti-freezing durability, etc., the fly ash, air entraining agent, Agents and other additives to prepare high-performance concrete pavement. Both indoor tests and field application results show that compared with common pavement concrete, the high performance pavement concrete with fly ash and air-entraining water-reducing admixture has the advantages of convenient construction, good homogeneity and remarkable increase in strength and frost resistance . Proposed in the cold and cold areas of the airport pavement construction should vigorously promote the use of additives with high performance concrete admixture.