Affiliation:
1. Czech Technical University in Prague
Abstract
The gypsum mortars with different types of aggregate were studied. The surface roughness of fine aggregates and the fracture surface roughness were evaluated by a confocal laser scanning microscopy. Four gypsum mortars and one gypsum paste were tested. The results from the confocal laser scanning microscopy (CLSM) are compared with the pictures of grain surface taken by a scanning electron microscopy (SEM) and both methods seem to be appropriate for surface evaluation. The influence of the surface aggregate roughness on some gypsum mortar properties is demonstrated.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference14 articles.
1. X. Ping, J.J. Beaudoin, Modification of transition zone microstructure - silica fume coating of aggregate surfaces, Cem. Concr. Res. 22, 597–604 (1992).
2. M.D. Cohen, A. Goldman, and W.F. Chen, The role of silica fume in mortar: Transition zone versus bulk paste modification, Cem. Concr. Res. 24, 95– 98 (1994).
3. G. Appa Rao, B. K. Raghu Prasad, Influence of the roughness of aggregate surface on the interface bond strength, Cem. Concr. Res. 32, 253-257 (2002).
4. G. Appa Rao, B. K. Raghu Prasad, Influence of type of aggregate and surface roughness on the interface fracture properties, Materials and Structures 37, 328-334 (2004).
5. L. Hong, X. Gu, and F. Lin, Influence of aggregate surface roughness on mechanical properties of interface and concrete, Construction and Building Materials 65, 338-349 (2014).
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2 articles.
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