- 王德民1，朱 宇2，张蔚斌2，朱国军1，牛 瑞3，舒震林1，张 港1
2024年第6期
摘要
引用本文
摘 要：为了研究采用SY-COM高性能纤维防裂抗渗复合材料（以下简称SY-COM复合材料）所配制的混凝土的防裂抗渗效果，对其力学、抗渗、抗裂等性能进行了测试，并依托某明挖隧道工程，监测了掺SY-COM复合材料大体积混凝土的内部温度和微应变随时间的变化规律。结果表明：与基准组相比，掺SY-COM复合材料混凝土的抗压、劈裂抗拉和抗折强度均有所提高，抗渗等级由P8提高至P12；掺SY-COM复合材料大体积混凝土的早期温降收缩量较小，早期开裂风险较低，防裂抗渗效果较好。
Abstract: In order to study the anti-cracking and anti-seepage effect of concrete prepared with SY-COM high-performance fiber and anti-cracking and anti-seepage composite material (SY-COM composite material), the mechanical, anti-seepage, anti-cracking and other properties were tested. Based on a certain open-cut tunnel engineering, the internal temperature and microstrain of mass concrete mixed with SY-COM composite material were monitored over time. The results show that compared with the benchmark group, the compressive, splitting tensile, and flexural strength of concrete mixed with SY-COM composite material are improved, and the impermeability level is increased from P8 to P12. The early temperature drop shrinkage of mass concrete mixed with SY-COM composite material is relatively small, the risk of early cracking is low, and the anti-cracking and anti-seepage effect is good.
王德民,朱宇,张蔚斌,等.明挖隧道工程大体积混凝土防裂抗渗性能研究[J].混凝土与水泥制品,2024(6):83-86,93.
WANG D M,ZHU Y,ZHANG W B,et al.Research on anti-cracking and anti-seepage performance of mass concrete in open-cut tunnel engineering[J].China Concrete and Cement Products,2024(6):83-86,93.
