Materials Reports  2020, Vol. 34 Issue (Z2): 261-264 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Preparation and Application Performance of Cement-based Permeable Crystalline Waterproof Masterbatch |
| LI Chongzhi, WU Huihua, NIU Zhenshan, CAO Yingying
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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 Using calcareous material A, soluble silica material B, phosphonic acid complexing agent C and other active masterbatch, mixed with cement, quartz sand can be formulated into cement-based permeable crystalline waterproof material (CCWC), with the bonding strength and the impermeability index determines the active masterbatch formulation and dosage. Determine the optimal blending ratio of masterbatch A is 0.5%, B is 1.0%, and C is 0.45%. Through the application performance test, the maximum bond strength of CCWC is 2.48 MPa, has excellent anti-cracking performance, 2 mm mortar plastering surface has no cracking in 28 d, and the 1.5 mm coating water level drops only 0.3 mm. It has good repair and waterproof performance. The indicators are better than national standards.
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Published: 08 January 2021
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| Fund:This work was financially supported by the BUCEA Post Graduate Innovation Project (PG2020028). |
| About author:: Huihua Wu, a postgraduate student in 2018 of Beijing University of Civil Engineering and Architecture. During the postgraduate period, she mainly conducted research on cement permeable crystalline waterproof coating.Chongzhi Li, a professor at Beijing Jianzhu University, graduated with a Ph.D. in civil engineering from Tsinghua University in 2004. He is mainly engaged in the development and application of concrete admixtures, anti-cracking and anti-corrosion additives used in concrete. |
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