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周   敏^1 ,2  ,  徐國賓^1 ,2  ,  張    蔚^{1 ,2}  ,  牛冬瑜³ ,   陳   鋒⁴ ,  李永進⁴  ,  李廣慧⁵

 

(  1 .  福建省建筑科學研究院有限責任公司 ，福州 350025 ; 2.  福建省綠色建筑技術重點實驗室，福州 350025 ;

3 .  長安大學 材料科學與工程學院，西安 710061 ;  4.  福建江夏學院 工程學院，福州 350025 ;

5 .  福建理工大學 材料科學與工程學院，福州 350025)

摘   要 ：利用人工加速老化 、納米壓痕 、RCM 等測試方法，研究摻鎳渣對橡膠水泥砂漿力學性能 、耐久性能及微觀性能的影響。結果表明：鎳渣摻入及加速老化均能提高橡膠水泥砂漿的抗壓強度 、抗折強度、壓折比及動彈性模量，且加速老化對高橡膠摻量水泥砂漿動彈性模量影響大；鎳渣能改善橡膠水泥砂漿的耐磨性， 當鎳渣體積率為 5% 、橡膠體積率為 15% 時，磨坑長度最小；鎳渣改善了橡膠水泥砂漿微界面區域彈性模量和硬度，使界面區的微觀力學性能得到了提高；鎳渣對橡膠水泥砂漿早期干燥收縮具有較好約束作用， 同時有助于改善水泥砂漿抗氯離子滲透性能，當鎳渣體積率為 15%、橡膠顆粒體積率為 5% 時，水泥砂漿氯離子擴散系數最小。

關鍵詞：鎳渣 ；改性 ；橡膠水泥砂漿；納米壓痕；人工加速老化

中圖分類號：TU528           

文獻標志碼：A            

文章編號： 1005- 8249   (2025)  02- 0037- 07 

DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .02.007

 

ZHOU Min^{1 , 2} ,  XU Guobin^{1 , 2} , ZHANG Wei ^{1 , 2}  ,  NIU Dongyu³, CHEN Feng³, LI Yongjin⁴, LI Guanghui5

(1 . Fujian Academy of Building Research Co . ,  Ltd . ,  Fuzhou 350025 ,  China;  2. Fujian  Provincial  Key

Laboratory of Green Building Technology ,  Fuzhou 350025 ,  China;  3 . School  of Materials  Science and

Engineering ,  Chang ’an University ,  Xi ’an 710061 ,  China;  4. Fujian Jiangxia University ,

Fuzhou 350025 ,  China;  5 . Fujian  University of Science and Technology ,   Fuzhou 350025 ,  China)

Abstract：The effects of nickel slag on the mechanical properties, durability, and microscopic properties of rubber particle cement mortar was studied by artificial accelerated aging, nano-indentation, RCM and other testing methods. The results showed that the addition of nickel slag and accelerated aging can improve the compressive strength, flexural strength, compression bending ratio, and dynamic elastic modulus of rubber cement mortar, and accelerated aging has a significant impact on the dynamic elastic modulus of high rubber content cement mortar; Nickel slag can improve the wear resistance of rubber cement mortar. When the volume fraction of nickel slag is 5% and the volume fraction of rubber is 15%, the length of the grinding pit is minimized; Nickel slag improves the elastic modulus and hardness of the micro interface area of rubber cement mortar, enhancing the micro mechanical properties of the interface area; Nickel slag has a good restraining effect on the early drying shrinkage of rubber cement mortar, and also helps to improve the resistance of cement mortar to chloride ion penetration. When the volume fraction of nickel slag is 15% and the volume fraction of rubber particles is 5%, the chloride ion diffusion coefficient of cement mortar is the smallest.

Key words：nickel slag；modification；rubber cement mortar；nano-indentation；artificial accelerated aging

基金項目：2025 年福建省環?？萍加媱濏椖? (2025R018) 。

作者簡介：周   敏  (1978—) , 男，碩士，教授級高級工程師，研究方向： 固廢資源化及新型材料研發。

收稿日期：2024 - 06 - 17