|Table of Contents|

Experiment on Tension Softening Behavior of Mortar-aggregate Interface(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2011年01期
Page:
91-95
Research Field:
Publishing date:
2011-03-20

Info

Title:
Experiment on Tension Softening Behavior of Mortar-aggregate Interface
Author(s):
ZHU Ya-chao;  SONG Yu-pu;  WANG Li-cheng
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
Keywords:
mortar-aggregate interface;  splitting test;  three point bending test;  roughness;  fracture energy;  tension softening curve
PACS:
TU528.01
DOI:
-
Abstract:
Splitting tests and three point bending tests of mortar-aggregate composite specimens were carried out. Based on the test results and modified J-integral calculation method, tension softening curve model and its expression of mortar-aggregate interface were proposed. Analysis results indicate that the mortar matrix property and the roughness of aggregate interface have important effect on the mechanical properties of interface. The fracture energy of interface increases with the increasing of mortar matrix strength and aggregate surface roughness. The fracture interfaces of normal strength mortar specimens appear on the mortar joint interface, and the fracture interfaces of high strength mortar specimens appear on the mortar joint interface and mortar-aggregate interface.

References:

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Last Update: 2011-03-20