INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Calculation Model for Compressive Strength of Low Strength Cement Asphalt Mortar |
TIAN Qing1,2, QU Mengjiao1,2, QI Shuai1,2, YAO Tianshuai1,2, ZHANG Miao1,2, XU Gelong1,2,*, DENG Dehua3
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1 Kaifeng Research Center for Engineering Repair and Material Recycle, Henan University, Kaifeng 475004, Henan,China 2 State Key Laboratory of Green Building Materials, Beijing 100024, China 3 School of Civil Engineering, Central South University, Changsha 410075, China |
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Abstract According to the physical structure model of low strength cement asphalt mortar (CA mortar), in reference to the particulate reinforcement theo-ries for polymer composites, the quantitative relationship between compressive strength and composition parameters of CA mortar was obtained.Results show that in cement asphalt binder (CAB), the reinforcement effect of hydration product on asphalt focuses on its overall content, and thus Piggott model is suitable for describing the relationship between compressive strength and hydration products volume fraction of CAB.The enhancement effect of sand on CAB focuses on individual attributes, so Nielsen model is suitable for characterizing the relationship between compressive strength and sand content of CA mortar.Verified by the data in the relevant literature, the established model has good universality.
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Published: 25 November 2022
Online: 2022-11-25
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Fund:Opening Project of State Key Laboratory of Green Building Materials(2021GBM01) and Key Scientific Research Project Plans of Higher Education Institutions in Henan Province(22B560002). |
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