Povezanost fizičkih i mehaničkih značajki lapora u središnjoj Istri

master's thesis

• Title: Povezanost fizičkih i mehaničkih značajki lapora u središnjoj Istri : diplomski rad
• Title (english): Correlation between physical and mehanical characteristics of marls in the central Istria : master's thesis
• Author: Ivana Štruklec
• Mentor: Davor Pollak (mentor)
• Committee member: Davor Pollak
• Committee member: Snježana Mihalić Arbanas
• Committee member: Uroš Barudžija
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Geology and Geological Engineering); Zagreb
• Defense date and country: 2015-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Geological Engineering

Abstract

Predmet istraživanja ovog rada je postojanost globigerinskih lapora i lapora iz flišnog kompleksa s područja središnje Istre, tzv. Sive Istre. U radu se provodi postupak određivanja postojanosti na 45 uzoraka novo osmišljenom laboratorijskom metodom. Na istim uzorcima su ispitane i ostale značajke za koje se pretpostavlja da utječu na postojanost laporovitih materijala - prirodna vlažnost, indeks plastičnosti, Schmidtov odskok i udio kalcita. Temeljem prikazanih rezultata istraživanja provedene su analize utjecaja svake navedene značajke na postojanost lapora. Najviši koeficijenti korelacije (> 0,70) zabilježeni su prilikom korelacije postojanosti s prirodnom vlažnosti i indeksom plastičnosti. Iz dobivenih rezultata i analiza može se također zaključiti da je postojanost ovisna o poroznosti te o udjelu i sastavu minerala glina, pa je procjena postojanosti preko ove dvije varijable najopravdanija. Također, relativno velik raspon postojanosti uzoraka dovodi do zaključka da na njihovu postojanost ne utječe samo mineralni sastav i geneza materijala, već i zatečena trošnost ispitivanih uzoraka.

Abstract (english)

Abstract: The aim of this research was to determine durability of Globigerina marls and marls from the flysch complex of central Istria, so-called Grey Istria. The research presents determination of durability of 45 samples using new laboratory method. Also, the same samples were used to determine other properties that are assumed to affect the durability of marl material - water content, plasticity index, Schmidt rebound hardeness and carbonate content. Based on the results of laboratory testing, the influence of each mentioned features on the durability of marls have been analyzed. The highest correlation coefficients (> 0.70) were found between the durability and water content but also with plasticity index. Based on the results and analysis it can be concluded that the durability depends on the porosity and percentage or composition of clay minerals, which means that the assessment of durability across these two variables is justified. Also, a relatively large range of marls durability leads to the conclusion that their durability is not affected only by mineral composition and genesis of the material, but also by weathering stage of the samples.

• Keywords: postojanost; trošenje; fliš; lapor; središnja Istra
• Keywords (english): durability; weathering; flysch; marl; central Istria
• Language: croatian
• URN:NBN: urn:nbn:hr:169:748317
• Study programme: Title: Geological Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka geološkog inženjerstva (magistar/magistra inženjer/inženjerka geološkog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2015-12-16 11:59:38