ǂThe ǂcomplexity of porous structure of building materials

phd thesis

Marko Samec (Author), Dean Korošak (Mentor), Sacha Jon Mooney (Co-mentor)

Abstract

V doktorski disertaciji je vzpostavljena povezava med strukturo (v topološkem smislu) v poroznem prostoru in dinamiko nabitih delcev v porozni snovi na primeru elementov trajnostnih gradbenih materialov, kot so glina, cement in zemljina. Opravljeno delo je kombinacija eksperimentalnih raziskav in modeliranja pridobljenih rezultatov z uporabo naprednih in razširjenih mrežnih modelov za modeliranje strukture por ter generaliziranega modela prevodnosti. Glavni zaključek doktorske disertacije je dokaz, da obstaja povezava med porozno strukturo in dinamiko nabitih delcev v porozni strukturi.To je bilo doseženo z izvedbo dveh eksperimentov: porozna struktura poroznih gradbenih materialov (vzorci zemljin, glin, cementov ter mešanic cementa in gline) je bila raziskana z uporabo najsodobnejše rentgenske računalniške mikrotomografije, medtem ko je bila dinamika nabitih delcev v vzorcih preučevana z nizkofrekvenčno dielektrično spektroskopijo. Raziskave opravljene in opisane v disertaciji so usmerjene k napredku razumevenja transportnih pojavov in porozne strukture poroznih materialov, kar je izrednega pomena za reševanje gradbenofizikalnih problemov pri prenosu vlage skozi ovoj stavbe, interakciji med zgradbo in tlemi in pri transportu kontaminantov v bližini odlagališč odpadkov, kjer je transport vlage skozi zemljino lahko vir onesnaževanja.

Keywords

complex network;porous structures;building materials;

Data

Language:	English
Year of publishing:	2011
Source:	[Maribor
Typology:	2.08 - Doctoral Dissertation
Organization:	UM FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Publisher:	M. Samec
UDC:	691-026.564.4(043.3)
COBISS:	14946070
Views:	4065
Downloads:	192
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary title:	Kompleksnost porozne strukture gradbenih materialov
Secondary abstract:	This thesis seeks to establish the link between the structure (in a topological sense) of porous space and charged particle dynamics in porous matter, specifically in constituent elements of sustainable building materials such as clay, cement and soil. The work done is a combination of experimental research and modelling of analysed data using advanced and expanded network models to model pore structure and generalized conductivity model. The main outcome of this doctoral thesis is the demonstration that there is a correlation between the large scale structure of the pore space and the properties of the motion of charged particles through the pore space. This was achieved by conducting two experiments: the structure of pore space of selected porous materials (soil samples, clays, cements, clay-cement mixtures) was investigated using state-of-the-art X-ray computed microtomography, while the dynamics of charged particles in the samples was probed using low-frequency dielectric spectroscopy. The research done and described in the thesis is directed towards the advancement of understanding the transport phenomena and the structure of porous media which is of paramount importance for solving problems in building physics dealing with moist transport in building's envelope, the building-ground interaction, and in transport of contaminants in the vicinity of the repositories where the transfer of moist through soil can be the source of contamination.
Secondary keywords:	kompleksne mreže;porozne strukture;gradbeni materiali;Gradbeni materiali;Disertacije;Poroznost;
URN:	URN:SI:UM:
Type (COBISS):	Dissertation
Thesis comment:	Univ. Maribor, Fak. za gradbeništvo
Pages:	XXXIX, 127 str.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;building (construction) trade;building materials;building practice and procedure;gradbeništvo;gradbeni materiali;gradbene obrti in dela;building materials;building components;gradiva;gradbeni [konstrukcijski] deli;
ID:	1014299