一种超长服役期混凝土及其制备方法

By combining toughening fibers with cementitious materials and optimizing aggregate gradation and admixture ratio, a multi-dimensional crack-resistant structure is formed, which solves the problem of multi-factor erosion of concrete in harsh environments and achieves improved durability and reduced costs for ultra-long service life.

CN122127120BActive Publication Date: 2026-07-17CHINA GEZHOUBA GROUP CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA GEZHOUBA GROUP CO LTD
Filing Date
2026-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing concrete materials are unable to withstand the combined erosion of multiple factors in harsh environments, have short service life, insufficient durability, and weak interface transition zones, and cannot meet the requirements for ultra-long service.

Method used

By combining toughening fibers with cementitious materials with specific properties, optimizing aggregate gradation and admixture ratio, a dense matrix and multidimensional crack-resistant structure are formed, enhancing interfacial adhesion. Through the synergistic effect of fibers, tensile strength and toughness are improved, resisting deterioration from multiple factors.

Benefits of technology

It achieves an ultra-long service life of concrete (≥120 years), effectively resists chloride ion erosion, carbonation, freeze-thaw cycles, etc. in harsh environments, improves impermeability and durability, reduces costs, and is suitable for marine engineering and deep earth tunnels.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure SMS_1
    Figure SMS_1
  • Figure SMS_3
    Figure SMS_3
Patent Text Reader

Abstract

本发明公开了一种超长服役期混凝土及其制备方法,属于建筑材料技术领域。所述的超长服役期混凝土,按质量份数计,包括以下原材料:胶凝材料800~1000份、骨料1400~1600份、外加剂10.5~19份、增韧纤维20~30份、钢纤维0~20份、PVA纤维6~11份、水160~200份;所述增韧纤维选用在55~75℃收缩率为4%~10%的纤维。本发明混凝土服役期≥120 年,抗压强度≥80 MPa,耐干湿循环≥500 次,抗裂、耐腐蚀及抗渗透性能优异,组分来源广泛、工艺简便,可工业化生产,适用于重大基础设施工程,能显著降低维修加固成本。
Need to check novelty before this filing date? Find Prior Art