Utjecaj pepela drvne biomase na autogeno skupljanje u ranoj starosti i mehanička svojstva morta

undergraduate thesis

• Title (english): The influence of wood biomass ash on early age autogenous shrinkage and mechanical properties of mortars
• Author: Josipa Jurjević
• Mentor: Nina Štirmer (mentor)
• Committee member: Ivana Banjad Pečur (predsjednik povjerenstva)
• Committee member: Bojan Milovanović (član povjerenstva)
• Committee member: Nina Štirmer (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Materials); Zagreb
• Defense date and country: 2022-09-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

Korištenje drvne biomase prvenstveno je usmjereno na proizvodnju električne i/ili plinske energije. Takva uporaba za nusproizvod ima pepeo koji je mješavina organskog i anorganskog sastava sklonog variranju. U ovom završnom radu ispitane su volumenske deformacije morta s pepelom drvne biomase. Ispitivanje se provelo na 5 uzoraka različitih mješavina od čega je jedna bila bez dodatka pepela (referentna), a ostale 4 mješavine s različitim udjelom pepela (10, 15, 20 i 30%).
U teorijskom dijelu rada opisane su deformacije uzrokovane autogenim skupljanjem u ranoj starosti te primjena pepela drvne biomase u cementnim kompozitima. U sklopu eksperimentalnog dijela, ispitano je autogeno skupljanje u ranoj starosti i mehanička svojstva mortova s pepelom drvene biomase kao zamjenom dijela cementa.

Abstract (english)

The use of wood biomass is mainly focused on the production of electrical and/or gas energy. Such utilization of wood biomass produces ash as a by-product which has a mixed organic and inorganic structure prone to variation. In this work, mortars with wood biomass ash were subjected to a test to determine its volumetric deformations. The test was carried out on 5 specimens, each with different mixture. One of the specimens contained no ash in the mixture (reference specimen) while the other specimens contained different proportions of ash (10, 15, 20 and 30%).
The theoretical part of this work describes deformations caused by autogenous shrinkage in the early phase of curing, as well as the application of wood biomass ash in cement composites. The experimental part of this seminar includes the testing of autogenous shrinkage in the early phase of curing and the mechanical properties of mortars enriched with wood biomass ash as a partial replacement of the cement.

• Keywords: drvna biomasa; mort; autogeno skupljanje; mehanička svojstva
• Keywords (english): wood biomass; mortar; autogenous shrinkage; mechanical properties
• Language: croatian
• URN:NBN: urn:nbn:hr:237:803267
• Study programme: Title: Civil Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2022-11-16 10:23:37