Materials Reports 2021, Vol. 35 Issue (z2): 200-204 |
INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Experimental Study on Freeze-thaw Cycle Durability of Autoclaved Aerated Concrete Based on Pore Structure |
LIANG Xiaoqian1, HUANG Bangbiao1, HUANG Bingzhang2, YANG Leiming1, SUN Wenxian1, LIN Tongmin1, REN Zhiqiang1,LI Youdi1, LIU Hao1
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1 Guangxi University of Science and Technology,Liuzhou 545006, China 2 Liuzhou Institute of Technology,Liuzhou 545616, China |
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Abstract In order to prove that the capillary water absorption coefficient of concrete can be used as the performance form of its anti-freezing perfor-mance, this work adopts the freeze-thaw cycle test of autoclaved aerated concrete and ordinary concrete. There are three sets of specimens: B07, B08 and C40 ordinary concrete. Carry out the deter mination of water absorption and capillary water absorption coefficient and 5, 15, 30 freeze-thaw cycle tests to study the influence of pore structure on the frost resistance of concrete. The results obtained through data analysis and microscopic analysis: the more the number of holes, the greater the capillary water absorption coefficient, the greater the mass loss rate and strength loss rate under the same freeze-thaw cycle, the worse the frost resistance, which proves the feasibility of this statement and provides a reliable performance research theory for the application of concrete.
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Published: 09 December 2021
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Fund:This work was financially supported by the Virtual Simulation Teaching Project of the Ministry of Education (Jiaogaohan 〔2019〕 No. 6), Guangxi Key R&D Program Project (Guike AB16380341, Guike AB17129024), Guangxi Science and Technology Base and Talent Special Project (Guike AD18050006), Science and Technology Research Project of Liuzhou Science and Technology Bureau (2020GBGA0401, 2020GBGA0402), the Basic Ability Improvement Project of Young and Middle-aged Teachers in Guangxi Colleges and Universities (2018KY0880). |
About author:: Xiaoqian Liang graduated from Guangxi University of Science and Technology in 2015. And she goes on to study for a master's degree at Guangxi University of Science and Technology. Her tutor is Bangbiao Huang. Her main research direction is material engineering and prefabricated construction. Bangbiao Huang, second-level professor, master tutor of the School of Civil Engineering, Guangxi University of Science and Technology, graduated from Beijing University of Technology in 2007 with a master's degree in engineering. He has presided over more than 30 provincial and municipal scientific research projects and won 2 items of the third prize of Guangxi Science and Technology Progress Award, multiple Liuzhou Science Progress Awards. The main research direction is material engineering and prefabricated construction. |
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