Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/43035
Title: Dynamic properties impact toughness and abrasiveness of polymer-modified pastes by using nondestructive tests
Authors: Wong, WG
Fang, P
Pan, JK
Keywords: Cement paste
Vibration
Elastic moduli
Issue Date: 2003
Publisher: Pergamon Press
Source: Cement and concrete research, 2003, v. 33, no. 9, p. 1371-1374 How to cite?
Journal: Cement and concrete research 
Abstract: This paper reports on the results of a study of the dynamic properties impact toughness and abrasiveness of polymer-modified pastes (PMPs) using a styrene–acrylic ester copolymer emulation. The dynamic elastic modulus Ed and the specific damping capacity Y of PMP were studied using a free vibration method. The propagation velocity of stress wave V and the scattered damping of stress wave in PMP were studied using an ultrasonic testing method. The impact toughness and abrasiveness were also studied. The dynamic modulus and the velocity of stress wave decreased with an increase in polymer–cement ratio (P/C) by mass. The specific damping capacity, impact toughness, and abrasiveness increased with an increase in P/C, thereby improving the ability of PMP to resist dynamic loads. When P/C is 15–20%, PMP demonstrates the best dynamic behaviour within the adopted range of testing.
URI: http://hdl.handle.net/10397/43035
ISSN: 0008-8846
DOI: 10.1016/S0008-8846(03)00069-3
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