水泥乳化沥青砂浆应力-应变本构关系的研究

doi:10.11896/cldb.21010104

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Abstract In this work, the uniaxial compression test of cement asphalt (CA) mortar with different mix proportions were examined by a universal material testing machine, the constitutive behavior of stress-strain were discussed. The effect of composition and structure on the constitutive equation parameters were analysed, and a quantitative relationship between the two was established. Results show that the calculated curve of the segmented constitutive equation agrees well with the test curve, the segmented equation can effectively reflect the stress-strain characteristics of CA mortar under uniaxial compression. The effects of m_A/m_C and m_W/m_C on the microstructure of CA mortar are different, constitutive equation parameters vary with m_A/m_C to a greater extent than with m_W/m_C. According to the conversion relation between constitutive equation parameters and m_A/m_C, m_W/m_C, moreover, in reference to the calculation formula for compressive strength and peak strain of CA mortar, the full stress-strain curve of a CA mortar with known mix ratio can be estimated effectively.

Key words： cement asphalt mortar stress-strain curve constitutive relation mix proportion parameters

Published: 10 August 2022 Online: 2022-08-15

CLC number:

TU528.42

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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	Articles by authors
	ZHANG Miao
	TIAN Qing
	QU Mengjiao
	QI Shuai
	YAO Tianshuai
	XU Gelong
	DENG Dehua

Cite this article:

ZHANG Miao,TIAN Qing,QU Mengjiao, et al. Experimental Study on Stress-Strain Constitutive Relations of Cement Asphalt Mortar[J]. Materials Reports, 2022, 36(15): 21010104-5.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.21010104 OR http://www.mater-rep.com/EN/Y2022/V36/I15/21010104

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