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Substitution of silica filler in the correction mortars by artifical compact material

By Július Jankovský


Master‘s thesis “Substitution of silica filler in the repair mortars by artifical compact material“ could by generally divided into two parts theoretical and experimental. The theoretical part is mainly focused on summarizing knowledge about repair mortars. The repair mortars are used for reprofilation of disrupted concrete layers, and therefore some of the most common defects of these layers, from which we can determine requirements for repair mortars are listed in the thesis. In the theoretical part, there is also mentioned a general formula of how to prepare a repair mortar, also there are described manufacture and characteristics of the most important ingredients of mortars such as cement, filler (aggregate), water and chemical modificators. Above all the theoretical part is focused on the effects that individual ingredients have on the resulting properties of repair mortars. The experimental part could be further divided into two parts. In the first part there are listed properties of the individual investigated materials and also there is introduced theoretical basis for particular tests of properties of repair mortars, such as analysis of grading distribution of a filler (aggragate), tests of flexular and compression strengths and frost resistance. In the first part there are also proposed formulae of mortar mixtures, where part of the original filler was substituted by an abrasive material TRYMAT, artificial compact aggregate made from blast furnace slag UHK d/D, or their combination. The properties of these mortar mixtures were compared to referential mortar mixture PANBEX R1. In the second part of experimental section is dedicated to summarization and discussion of the obtained results for individual mortar mixtures

Topics: grading curve; frost resistance; Repair mortars; artificial aggregate; alternative filler; abrasive material
Publisher: Vysoké učení technické v Brně. Fakulta chemická
Year: 2009
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