Abstract: Thermal cracking of mass concrete has been one of the most important problems that needs to be solved and gets attention for a long time in engineering and academia. In this paper, the method of pre-embedded cooling pipes with paraffin was used to replace cooling water. The effects of paraffin on the maximum temperature rise, variety rate of temperature and the maximum temperature difference of three grades of concrete were studied. The results show that compared with the control group, through the introduction of paraffin, the maximum temperature rise can be reduced by 3.2 ℃ with the maximum decreasing amplitude 6.5 ℃. Paraffin can control the internal temperature of concrete around its phase transition temperature and reduce the variety rate of temperature significantly. It can also reduce the internal and external temperature gradie-nt and effectively avoid cracking due to temperature stress.
王子仪, 张武龙, 王瑞燕, 邓伟新, 吴沂. 石蜡热工介质对混凝土绝热温升的影响[J]. 材料导报, 2022, 36(Z1): 21080274-5.
WANG Ziyi, ZHANG Wulong, WANG Ruiyan, DENG Weixin, WU Yi. Influence of Paraffin Thermal Media on Adiabatic Temperature Rise of Concrete. Materials Reports, 2022, 36(Z1): 21080274-5.
1 黎敏, 李青, 徐鸿玉, 等. 中国港湾建设, 2014 (7), 7. 2 周厚贵.水利水电科技进展, 2008, 28(2), 42. 3 朱伯芳, 王同生, 丁宝瑛, 等.水工混凝土结构的温度应力与温度控制, 水利电力出版社, 1976. 4 王祥国, 彭一凡, 杨孟刚.铁道科学与工程学报, 2020, 17(3), 549. 5 Liu L, Yang P, Zhang B, et al.Construction and Building Materials, 2021, 272, 121827. 6 Shen L, Yao X, Zhu D, et al.International Journal of Heat and Mass Transfer, 2021, 180, 121732. 7 Xin J, Zhang G, Liu Y, et al. Construction and Building Materials, 2018, 192, 381. 8 朱伯芳.大体积混凝土温度应力与温度控制, 中国电力出版社, 1999. 9 王铁梦.混凝土, 2000(5), 3. 10 Ouyang J, Chen X, Huangfu Z, et al.Construction and Building Mate-rials, 2019, 197, 778. 11 Hillerborg A, Modéer M, Petersson P E. Cement and Concrete Research, 1976, 6(6), 773. 12 Dhondt G.International Journal for Numerical Methods in Engineering, 1998, 41(4), 739. 13 朱伯芳, 蔡建波. 水利学报, 1985(4), 27. 14 朱伯芳. 水利学报, 1991(3), 28. 15 Zhao Y, Ding D, Bi J, et al.Construction and Building Materials, 2021, 301, 124. 16 朱伯芳. 水利水电技术, 2009, 40(1), 44. 17 Liu Y, Yang Y.Applied Thermal Engineering, 2017, 112, 606. 18 Fang D, Sun Z, Li Y, et al.Applied Thermal Engineering, 2016, 92, 187. 19 Li M, Zhou D, Jiang Y.Renewable Energy, 2021, 175, 143. 20 刘益良, 苏幼坡, 殷尧, 等. 材料导报, 2021, 35(5), 05040. 21 Lane G A.Solar Heat Storage, Volume II, Latent Heat Material, CRC press, USA, 2018. 22 Lee T, Hawes D W, Banu D, et al.Solar Energy Materials and Solar Cells, 2000, 62(3), 217. 23 Darkwa K, O'callaghan P W.Applied Thermal Engineering, 2006, 26(8-9), 853. 24 Shi X, Memon S A, Tang W, et al. Energy and Buildings, 2014, 71, 80. 25 史巍, 张雄. 同济大学学报(自然科学版), 2010, 38(4), 564.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2022, Vol. 36 
