Materials Reports  2020, Vol. 34 Issue (Z2): 299-303 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Basic Properties of Alkali Activated Slag/Fly Ash Pervious Concrete |
| BIAN Libo, DONG Shen, TAO Zhi
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| School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture, Beijing 100044, China |
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Abstract Pervious concrete with slag/fly ash as rubber material was prepared by using sodium hydroxide and sodium silicate as alkali activator. The effects of different alkali equivalent, activator modulus and designed porosity on the mechanical properties and water permeability of per-vious concrete at a certain age were compared. The results showed that the compressive strength and flexural strength increased at first and then decreased with the increase of alkali activator modulus and alkali equivalent. The designed porosity is 25%, modulus is 1.5, alkali equivalent is 6.0%, compressive strength is 23.4 MPa, flexural strength is 3.1 MPa, alkali-activated slag/fly ash pervious concrete has significant correlation with mechanical properties of slurry. The overall permeability of pervious concrete is 10 mm/s, the designed porosity is more than 25%, the designed porosity is 15%, the compressive strength is 28.3 MPa, the permeability is 4.3 mm/s.
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Published: 08 January 2021
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| Fund:This work was financially supported by General Project of Beijing Municipal Education Commission Scientific Research Program (KM201710016016) and Beijing University of Civil Engineering and Architecture Basic Operating Expenses Special Fund-QN Youth Research and Innovation Special Project (X18260). |
| About author:: Libo Bian, received his Ph.D. degree in engineering from Beijing University of Science and Technology in June 2016. Now, he is associate professor in Beijing University of Civil Engineering and Architecture. He mainly teaches the experimental courses of Building Material Testing Technology, Civil Engineering Material and Inorganic Nonmetallic Material Engineering. He has presided over projects of Beijing Natural Science Fund, Beijing Education Commission, Key R&D Technology of the Science and Technology Ministry and enterprise entrusted projects. The main research fields: Multi-component composite new cementitious material technology, porous concrete technology and special and new building mate-rials. Authorized/applied for 16 invention patents, 7 utility models, and published more than 20 related papers. |
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1 Golden J S,Kaloush K E. International Journal of Pavement Engineering,2006,7(1),37.
2 Yanagibashi K, Yonezawa T. In:CANMET/ACI/JCI International Conference on Recent Advances in Concrete Technology,Tokushima(JP),1998,pp. 141.
3 Sofi M,Deventer J S J V,Mendis P A,et al.Cement & Concrete Research,2007,37(2),251.
4 Rashad A M, Zeedan S R, Hassan A A.Construction & Building Mate-rials,2016,102(2),811.
5 Xu H,Shen L F,Wang W,et al. Journal of Hazardous Materials,2010,175,198.
6 Bakharev T.Cement & Concrete Research,2005,35(4),658.
7 Bakharev T.Cement & Concrete Research,2005,35(6),1233.
8 Sun Zengqing, Lin Xiaochen, Vollpracht Anya. Construction and Buil-ding Materials,2018 189,797.
9 徐庆,李秋, 陈伟, 等. 硅酸盐通报, 2018,37(11), 3575.
10 丁崧,陈潇,夏飞跃,等. 建筑材料学报, 2020,23(1),48.
11 Deo O,Neithalath N. Construction and Building Mate-rials,2011,25(11),4181.
12 何娟,杨长辉. 土木建筑与环境工程, 2011,33(3), 148.
13 黄科,马玉玮,郭奕群,等. 硅酸盐通报, 2015,34(10), 2770.
14 Nadoushan M J,Ramezanianpour A A.Construction and Building Mate-rials,2016,111,337.
15 Hardjito D,Wallah S E,Sumajouw D M.Civil Engineering Dimension,2004,6(2),88.
16 Görhan G,Kürklü G. Composites Part B:Engineering,2014,58,371.
17 Morsy M,Alsayed S,Al-Salloum Y,et al. Arabian Journal for Science and Engineering,2014,39(6),4333. |
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