Utjecaj vlažnosti i temperature u vlažnoj komori na fizikalno-mehanička svojstva uzorka tla

master's thesis

• Title (english): The influence of humidity and temperature in a humid chamber on the physical and mechanical properties of a soil sample
• Author: Filip Bertinovec
• Mentor: Mario Gazdek (mentor)
• Committee member: Jasmin Jug (član povjerenstva)
• Committee member: Sanja Kovač (predsjednik povjerenstva)
• Committee member: Mario Gazdek (član povjerenstva)
• Committee member: Boris Kavur (član povjerenstva)
• Granter: University of Zagreb; Faculty of Geotechnical Engineering; Varaždin
• Defense date and country: 2023-09-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences; Environmental Engineering

Abstract

Utjecaj ambijentalnih uvjeta, relativne vlažnosti i temperature okoline na fizikalno-
mehanička svojstva uzoraka tla istraživan je u tri kontrolirane sredine: laboratorij, vlažna
komora i humidor. Homogenizirani uzorci gline niske plastičnosti (CL) s pijeskom sintetizirani
su pri standardnoj energiji zbijanja na optimalnu vlažnost i maksimalnu suhu gustoću. Tako
pripremljeni uzorci omogućavali su ispitivanje i uspoređivanje vlažnosti, gustoće i suhe gustoće
kao osnovnih parametara fizikalnih svojstava. Ispitivanja vrijednosti kohezije, kuta unutrašnjeg
trenja i modula stišljivosti sintetičkih uzoraka poslužila su za praćenje promjena posebnih
mehaničkih, odnosno geotehničkih svojstava. Pokazalo se da sintetički uzorci zaštićeni PE
folijom i čuvani u različitim ambijentalnim uvjetima relativne vlažnosti od 42 do 98 % i
temperature u rasponu od 14 do 21 °C mijenjaju svoja fizikalno-mehanička svojstva u vrlo
malim granicama. Na značajnije promjene deformabilnosti i posmične čvrstoće utjecala je
duljina čuvanja, odnosno starost uzoraka.

Abstract (english)

The influence of ambient conditions, relative humidity, and temperature on physical-
mechanical properties of soil samples was analysed in three controlled environments: a
laboratory, a humid chamber, and a humidor. Homogenized samples oflow plasticity clay (CL)
with sand were synthesized at standard compaction energy to achieve optimal moisture content
and maximum dry density. These prepared samples allowed the examination and comparison
of moisture content, density, and dry density as fundamental parameters of physical properties.
The testing of the values of cohesion, stress friction angle, and compressibility modulus of
synthetic samples served to monitor changes in specific mechanical or geotechnical properties.
It was concluded that synthetic samples, which were protected by a PE film and stored in
different ambient conditions with relative humidity ranging from 42 % to 98 % and
temperatures between 14 °C and 21 °C, showed minimal changes in their physical-mechanical
properties. More significant changes in deformability and shear strength were caused by the
storage duration or the aging of the samples.

• Keywords: Fizikalno-mehanička svojstva tla; relativna vlažnost i temperatura; čuvanje uzoraka tla; vlažna komora.
• Keywords (english): Physical and mechanical properties of soil; relative humidity and temperature; soil sample preservation; humidity chamber.
• Language: croatian
• URN:NBN: urn:nbn:hr:130:076695
• Study programme: Title: Geoenvironmental Engineering; specializations in: Geoenvironmental Engineering, Environmental Management, Water Management; Course: Geoenvironmental Engineering; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka inženjerstva okoliša (sveučilišni/a magistar/magistra inženjer/inženjerka inženjerstva okoliša)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2024-02-13 12:22:18