Miješani cementi s pepelom drvne biomase

undergraduate thesis

• Title (english): Blended cements with wood biomass ash
• Author: Ivana Primorac
• Mentor: Nina Štirmer (mentor)
• Committee member: Ivan Gabrijel (predsjednik povjerenstva)
• Committee member: Ivana Banjad Pečur (član povjerenstva)
• Committee member: Nina Štirmer (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Materials); Zagreb
• Defense date and country: 2023-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

Ovaj rad opisuje moguću primjenu pepela drvne biomase kao novog mineralnog dodatka u cementima te njegov utjecaj na svojstva cementa i morta u svježem i očvrsnulom stanju. Pepeo drvne biomase opisan u ovom radu najčešće potječe iz energana, a uglavnom se koristi leteći pepeo drvne biomase. Ovaj rad istražuje upotrebu pepela drvne biomase kao ekološkog veziva i kao djelomičnu zamjenu za cement. Iako je otpad od obrade drveta održiv, a drvo je obnovljiv izvor goriva za proizvodnju energije, termički proces pretvaranja drvne biomase u toplinsku energiju proizvodi značajne količine pepela drvne biomase kao nusproizvoda i ako se njime pravilno ne upravlja, može rezultirati ozbiljnim ekološkim i zdravstvenim problemima. Korištenje pepela drvne biomase kao sekundarnog cementnog materijala može smanjiti ugljični otisak betona za 40 % uz zadržavanje dobrih tehničkih i ekoloških svojstava.

Abstract (english)

This paper describes the potential application of wood biomass ash as a new mineral additive in cements and its influence on the properties of cement and mortar in both the fresh and hardened states. The wood biomass ash discussed in this paper is most commonly sourced from power plants, with wood biomass fly ash being the primary type used. This paper explores the utilization of wood biomass ash as an eco-friendly binder and as a partial substitute for cement. While wood processing waste is sustainable, and wood is a renewable source of energy fuel, the thermal process of converting wood biomass into thermal energy generates significant quantities of wood biomass ash as a byproduct, and if not properly managed, it can lead to significant environmental and health issues. The use of wood biomass ash as a secondary cementitious material can reduce the carbon footprint of concrete by 40 % while retaining good technical and environmental properties.

• Keywords: pepeo drvne biomase; djelomična zamjena za cement; miješani cementi
• Keywords (english): wood biomass ash; partial cement replacement; blended cements
• Language: croatian
• URN:NBN: urn:nbn:hr:237:555719
• 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: 2023-10-23 08:56:37