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用双快水泥加缓凝高效减水剂调整水灰比 ,加缓凝剂调节凝结时间配制的超早强混凝土 ,具有良好的性能 ,既可以调节初、终凝时间以满足施工所需时间 ,又能使早期强度很快发展 (初凝后 3h的强度达到 30 MPa以上 ) ,后期强度也同时增加。这种超早强混凝土特别适用于重交通情况的道路维修。并将其应用在广佛高速公路大修工程中的纵缝处理上 ,试验和应用效果均较好
Using double fast cement and retarding superplasticizer to adjust the water-cement ratio, adding retarding agent to adjust the setting time, the ultra-early strength concrete with good performance can not only adjust the initial and final setting time to meet the construction time, But also the rapid development of early strength (initial 3h after the strength of 30MPa or more), the late strength also increased. This ultra-early strength concrete is particularly suitable for road maintenance of heavy traffic conditions. And its application in the Guangfo Expressway overhaul engineering longitudinal seam processing, the test and application of the results are better