Otpornost miješanih cemenata s glinom i vapnencem na prodor klorida

undergraduate thesis

• Title (english): Resistance of cements blended with clay and limestone to chloride transport
• Author: Jan Ruszkowski
• Mentor: Marijana Serdar (mentor)
• Committee member: Ivana Banjad Pečur (predsjednik povjerenstva)
• Committee member: Ivan Gabrijel (član povjerenstva)
• Committee member: Marijana Serdar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Materials); Zagreb
• Defense date and country: 2021-09-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

U današnje doba velikih industrija i velikog ispusta 𝐶0 2 sve grane industrije su u razvoju novih tehnologija i materijala u cilju smanjivanja količine 𝐶0 2 ispuštenog u atmosferu. Betonska industrija već godinama razvija veziva sa raznim mineralnim dodacima u cilju smanjenja korištenja cementa čija izrada zahtjeva velike količine energije i čini nezanemariv dio ukupnog ispusta 𝐶0 2 u atmosferu. Jedno od takvih veziva sa mineralnim dodacima je LC3 (Limestone Calcined Clay Cement). Korištenjem takvog veziva bi smanjili udio cementa potreban za izradu betona što bi rezultiralo smanjenom proizvodnjom cementa i manjim ispustom 𝐶0 2 U ovom radu provedeno je laboratorijsko istraživanje na uzorcima betona u svrhu provjere mehaničkih svojstva i svojstva trajnosti s naglaskom na prodor klorida. Korištena veziva su cement glina i vapnenac. U svježem stanju su provedena ispitivanja konzistencije,
temperature, gustoće i sadržaja pora. Uzorci su njegovani u vlažnoj komori do ispitivanja svojstava u očvrsnulom stanju. Provedena ispitivanju su čvrstoća na savijanje, tlačna čvrstoća i koeficijent difuzije.

Abstract (english)

In today’s world of big industries and large emissions of 𝐶0 2 every industry is working on the developement of new technologies and materials with the purpose of lowering the emission of 𝐶0 2 into the atmosphere. The concrete industry is already developing binders with supplementary cementitious materials for years aiming to lower the use of ordinary
cement which requires massive amounts of energy and makes up a large part of the global 𝐶02 𝑒𝑚𝑖𝑠𝑠𝑖𝑜𝑛. A binder like that is LC3 (Limestone Calcined Clay Cement). By using such a binder we would be lowering the amount of cement needed for producing concrete which would result in a reduced production of cement and a lower 𝐶0 2 𝑒𝑚𝑖𝑠𝑠𝑖𝑜𝑛. This paper presents a laboratory study performed on samples of concrete with the purpose of checking the mechanical properties and the durability with emphasis on chloride diffusion. Used binders are limestone and calcined clay. The testing done in the fresh state are consistency, temperature, density, and pore content. Samples were cured in humid chamber until testing. The conducted tests for mechanical properties were flexural strength, compressive strength and rapid chloride penetration test.

• Keywords: vezivo; LC3; glina; prodor klorida; beton; trajnost betona
• Keywords (english): binder; LC3; calcined clay; chloride diffusion; concrete; concrete durability
• Language: croatian
• URN:NBN: urn:nbn:hr:237:043624
• 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: 2022-04-05 07:47:12