| Study on Preparation and Properties of Fiber-reinforced Rubber Matrix Sealing Materials for Building Joints |
| Received:March 22, 2024 Revised:March 22, 2024 |
| DOI：10.12136/j.issn.1000-890X.2025.11.0839 |
| Key Words: building joint；fiber；rubber matrix sealing material；tensile property；creep relaxation resistance；liquid corrosion resistance |
| Author Name | Affiliation | E-mail | | Zhang Rifen | School of Civil Engineering and Architecture,Liuzhou Institute of Technology | ijdlfpij@163.com | | Ai Xiangren* | School of Civil Engineering and Architecture,Liuzhou Institute of Technology | ijdlfpij@163.com |
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| Abstract: |
| The preparation and properties of the fiber-reinforced rubber matrix sealing materials for building joints were studied.Experiments showed that the optimized formula（dosage/phr）of the fiber-reinforced rubber matrix sealing material was：rubber（natural rubber/nitrile rubber dosage ratio of 1/4） 35，fibers（aramid fiber/mineral fiber dosage ratio of 1/2） 15，fillers（silica/kaolin/calcium carbonate/mica powder/barium sulfate dosage ratio of 6/14/11/5/9） 45，other compounding agents [vulcanizing agents（including sulfur dichloride and dibenzoyl peroxide）/accelerator M/activators（including zinc oxide and diethylene glycol） dosage ratio of 2.5/0.5/2] 5.The tensile strength of the optimized formula fiber-reinforced rubber matrix sealing material decrease minimally with increasing tensile rate.Meanwhile，its creep relaxation and the mass loss rates after immersion in water，saturated calcium hydroxide solution and sodium chloride solution were the minimized.This indicated that the optimized formula fiber-reinforced rubber matrix sealing material had the best tensile properties，creep relaxation resistance and liquid corrosion resistance. |
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