掺加麦秆植物纤维碱矿渣胶凝材料墙体热工性能试验

朱晶; 冯世辉; 郭清华; 曲子健; 刘劭同; 郑文忠

doi:10.13204/j.gyjzG21010708

掺加麦秆植物纤维碱矿渣胶凝材料墙体热工性能试验

doi: 10.13204/j.gyjzG21010708

1. 哈尔滨理工大学建筑工程学院, 哈尔滨 150080;
2. 哈尔滨工业大学结构工程灾变与控制教育部重点实验室, 哈尔滨 150090

基金项目:

黑龙江省科学基金项目（LH2019E066）；国家自然科学基金资助项目（51508140）；国家重点研发计划资助项目（2017YFC0806100）；大学生创新创业项目（202010214213）。

详细信息

作者简介:
朱晶,女,1981年出生,讲师,硕士生导师,博士后。电子信箱:zhujing@hrbust.edu.cn

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- 文章访问数: 128
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- 被引次数: 0
出版历程
- 收稿日期: 2021-01-07
- 网络出版日期: 2021-08-19

EXPERIMENT ON THERMAL PERFORMANCE OF WALL MADE OF ALKALI-ACTIVATED SLAG CEMENTITIOUS MATERIAL MIXED WITH WHEAT-STRAW PLANT FIBER

1. College of Civil Engineering and Architecture, Harbin University of Science and Technology, Harbin 150080, China;
2. Key Lab of Structures Dynamic Behavior and Control of the Ministry Education, Harbin Institute of Technology, Harbin 150090, China

摘要

摘要: 采用冷、热箱热流计法测量植物纤维增强碱矿渣胶凝材料墙体的热工参数。选取墙体尺寸为780 mm×950 mm×190 mm，利用热电偶和热流计分别测出墙体两侧温度和热流，再用静态法计算，得到墙体的导热热阻0.408 m²·K/W、传热系数为1.792 W/（m²·K），进而计算得到墙体的导热系数为0.136 W/（m·K）。与空气导热系数0.84 W/（m·K）和混凝土墙体的导热系数1.74 W/（m·K）相比，植物纤维增强碱矿渣胶凝材料的导热系数更小，表明植物纤维增强碱矿渣胶凝材料具有良好的保温隔热性能。
- 碱矿渣胶凝材料 /
- 墙体 /
- 冷、热箱 /
- 热流计法 /
- 导热系数
Abstract: The thermal parameters of the wall made of plant fiber-reinforced alkali-activated slag cementitious material were measured through the cold and hot box heat flow meter method. The wall size was selected with 780 mm×950 mm×190 mm, and the thermocouples and heat flow meters were used to measure the temperature and heat flow on both sides of the wall. Then, the thermal resistance 0.408 m²·K/W and heat transfer coefficient 1.792 W/(m²·K) of the wall were measured by the dynamic method and the static method, respectively. Finally, The thermal conductivity of the wall was calculated as 0.136 W/(m·K). Compared with the air thermal conductivity of 0.84 W/(m·K) and the thermal conductivity of concrete wall of 1.74 W/(m·K), the thermal conductivity of plant fiber-reinforced alkali-activated slag cementitious material was lower, which could prove that the fiber-reinforced alkali-activated slag cementitious material had good thermal insulation performance.
- alkali-activated slag cementitious material /
- wall /
- cold and hot box /
- heat flow meter method /
- thermal conductivity

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参考文献(22)

[1]	KIM T W, JUN Y B. The Strength and Drying Shrinkage Properties of Alkali-Activated Slag Using Hard-Burned MgO[J]. Journal of the Korea Institute for Structural Maintenance and Inspection, 2015,19(3):39-47.
[2]	朱晶,郑文忠,谢礼立,等.不同纤维增强碱矿渣胶凝材料高温后力学性能试验研究[J].工业建筑, 2019,49(5):109-114.
[3]	PIMRAKSA K,CHINDAPRASIRT P,RUNGCHET A,et al. Lightweight Geopolymer Made of Highly Porous Siliceous Materials with Various Na₂O/Al₂O₃ and SiO₂/Al₂O₃ Ratios[J]. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2011,528(21):6616-6623.
[4]	ZHU J, ZHENG W Z, XIE L L, et al. A High-Temperature-Resistant Inorganic Matrix for Concrete Structures Enhanced by Fiber-Reinforced Polymer[J]. Alexandria Engineering Journal, 2021,60(1):131-143.
[5]	FERNANDEZ-JIMENEZ A,PUERTAS F. Structure of Calcium Silicate Hydrates Formed in Alkaline-Activated Slag:Influence of the Type of Alkaline Activator[J]. The Journal of American Ceramic Society,2003,33(1):2031-2036.
[6]	JIAO Z Z,WANG Y,ZHENG W Z,et al.Effect of Dosage of Sodium Carbonate on the Strength and Drying Shrinkage of Sodium Hydroxide Based Alkali-Activated Slag Paste[J]. Construction and Building Materials,2018,179(10):11-24.
[7]	程可佳.碱矿渣陶粒混凝土的自收缩及抗裂性能研究[D].福州:福州大学,2016:21-43.
[8]	郑文忠, 朱晶. 碱矿渣胶凝材料结构工程应用基础[M].哈尔滨:哈尔滨工业大学出版社, 2015:1-12.
[9]	吴中伟. 纤维增强水泥基材料的未来[J]. 混凝土与水泥制品, 1999(1):5-6.
[10]	ZHU J, ZHENG W Z, XIE L L, et al. Alkali-Activated Slag Cement:Alternative Adhesives for CFRP Sheets Bonded to Concrete at Elevated Temperatures[J].Journal of New Materials for Electrochemical Systems, 2020,23(3):167-176.
[11]	黄丽媛. 植物纤维增强水泥基复合材料的研究[D].重庆:西南大学,2019:8-23.
[12]	ZHU J, ZHENG W Z, LESLEY H S, et al. Mechanical Properties of Plant Fibers Reinforced Alkali-Activated Slag Cementitious Material at High Temperature[J]. Annales de Chimie:Science des Materiaux, 2019, 43(4):240-255.
[13]	李保德, 王兴肖, 娄霓. 植物纤维增强砌块砌体轴心受压试验研究与有限元分析[J]. 建筑结构, 2011, 41(8):129-133 ,109.
[14]	国家住房与居住环境工程技术研究中心.植物纤维石膏渣空心砌块应用技术规程:CECS 201:2006[S].北京:中国计划出版社,2006.
[15]	中国建筑设计研究院.植物纤维工业灰渣混凝土砌块建筑技术规程:JGJ/T 228-2010[S].北京:中国建筑工业出版社,2011.
[16]	KHALIQ W, KODUR V. Thermal and Mechanical Properties of Fiber Reinforced High Performance Self-Consolidating Concrete at Elevated Temperatures[J]. Cement and Concrete Research, 2011, 41(11):1112-1122.
[17]	PHATTHARACHAI M, TEEWARA S W, PEERAPONG J, et al. Hemp Fiber Reinforced Geopolymer Composites:Effects of NaoH Concentration on Fiber Pre-Treatment Process[J]. Key Engineering Materials, 2020, 841(1):166-170.
[18]	王兴肖. 植物纤维增强砌块墙体力学性能试验研究与有限元分析[D]. 武汉:武汉理工大学, 2010:12-39.
[19]	郑文忠, 王睿, 王英. 活性粉末混凝土热工参数试验研究[J]. 建筑结构学报, 2014, 35(9):107-114.
[20]	柳孝图. 建筑物理[M]. 3版.北京:中国建筑工业出版社2010:37-60.
[21]	中国建筑科学研究院.采暖居住建筑节能检验标准:JGJ 132-2001[S].北京:中国建筑工业出版社,2001.
[22]	中华人民共和国住房和城乡建设部.民用建筑热工设计规范:GB 50176-2016[S].北京:中国建筑工业出版社,2016.