Materials Reports  2020, Vol. 34 Issue (Z1): 220-223 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
|
|
|
|
|
| Study on the Influence of Recycled Building Aggregate on the Impermeability ofCity Wall Soil |
| LI Taihang, QI Chengzhi, WANG Xiaojiao, ZHOU Li'an
|
| Beijing International Cooperation Base for Municipal Transportation Infrastructures and Beijing Future Urban Design High-Tech Innovation Center, Beijing University of Civil Engineering and Architecture, Beijing 100044, China |
|
|
|
|
Abstract As an important part of Chinese architectural heritage, city walls have precious historical, cultural and artistic values. As part of the military defense line, walls and other auxiliary military installations constituted ancient military defense installations. The country advocates the preventive protection of architectural heritage. For preventive protection, it is necessary to understand the damage patterns and damage processes of the city walls under natural environmental conditions. At present, the preventive measures against the city walls under rainfall conditions are not perfect. This paper studies the permeability of the city wall, adding recycled brick aggregate and cement aggregate at 10%, 20%, 30%, and 40% of the mixed volume to the city wall soil, respectively. Through the orthogonal test design, combined with the triangular isenthalpic diagram, the optimal combination of modified soil permeability is obtained. Studies show that by incorporating recycled aggregate into the city wall soil, the impermeability of the city wall soil can be significantly improved to a certain extent. According to the triangular isenthalpic diagram, we can know that the optimal combination range of the permeability of the modified aggregate is 20%—30% for concrete aggregate and 10%—20% for brick aggregate.
|
|
Published: 01 July 2020
|
|
|
| Fund:This work was financially supported by the National Natural Science Foundation of China (51774018), Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT, IRT_17R06). |
| About author:: Taihang Li born in Sichuan Province in 1994,Master of Beijing University of Civil Engineering and Architecture,mainly engaged in the study and research of architectural heritage protection ; Chengzhi Qi is currently a professor and doctoral supervisor of Beijing University of Civil Engineering and Architecture. Yangtze river scholars Distinguished Professor, mainly engaged in the research of rock mechanics and disaster prevention & ; mitigation engineering. He was responsible for more than 10 national scientific research projects. |
|
|
1 Péra J, Husson S, Guilhot B. Cement & Concrete Composites, 2011, 21(2),99.
2 Khatib J M. Cement & Concrete Research, 2005, 35(4),763.
3 Kumar S, Kumar R, Bandopadhyay A, et al. Cement & Concrete Compo-sites, 2008, 30(8),679.
4 Binici H, Temiz H, Köse M M. Construction & Building Materials, 2007, 21(5),1122.
5 Filho R D T, Gonçalves J P, Americano B B, et al. Cement & Concrete Research, 2007, 37(9),1357.
6 谭艺帅,彭有开,吴徽. 混凝土, 2019(3),65.
7 郝彤,刘斌,王帅. 混凝土, 2019(2),119.
8 夏鑫,孙海燕,张帆,等. 混凝土与水泥制品, 2018(10),24.
9 Mi R J, Pan G H, Li Y, et al. Journal of Southeast University(English Edition), 2018,34(3),371.
10 周文娟,季志远,赵磊,等. 混凝土与水泥制品, 2019(3),93. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
