Utjecaj dodataka za kristalizaciju na svojstva betona

master's thesis

• Title (english): Effect of additive for crystallization on concrete properties
• Author: Ante Kovačević
• Mentor: Marijan Skazlić (mentor)
• Committee member: Bojan Milovanović (predsjednik povjerenstva)
• Committee member: Marijana Serdar (član povjerenstva)
• Committee member: Marijan Skazlić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Materials); Zagreb
• Defense date and country: 2019-11-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

U ovom radu analiziran je utjecaj dodatka za kristalizaciju na mehanička i trajnosna svojstva betona. Rad je podijeljen na teoretski i eksperimentalni dio. Teoretskim dijelom je obuhvaćeno stanje područja o dodacima za kristalizaciju, dani su neki primjeri dosadašnjih ispitivanja te komentari na rezultate istih. Također u teoretskom dijelu su obuhvaćeni neki praktični slučajevi primjene samih dodataka. Eksperimentalnim dijelom napravljena su ispitivanja mehaničkih i trajnosnih svojstava betona sa dodatkom za kristalizaciju. Postotak doziranja dodatka je 1% na masu cementa. Projektirane su četiri mješavine betona dvije kontrolne i dvije s dodatkom za kristalizaciju koje se razlikuju po tlačnoj čvrstoći betona. Cilj rada je ispitati djelovanje dodatka za kristalizaciju na vodonepropusnost betona. Provedena ispitivanja su vodonepropusnost pod tlakom, tlačna čvrstoća, modul elastičnosti, kapilarno upijanje betona te difuzija klorida u betonu. Na temelju rada date su preporuke za praktičnu primjenu dodataka za kristalizaciju u betonu.

Abstract (english)

This paper analyzes influence of additives for crystallization on mechanical and durability properties of concrete. The paper is divided into theoretical and experimental part. Theoretical part covers state of the art about additives for crystallization in concrete, some examples of work so far and comments on their results. Theoretical part also covers some practical applications of these supplements. With experimental part it is included all tests for mechanical and durability properties od concrete with additive for crystallization. Percentage dosage of the additive is 1 % by weight of cement. Four concrete mixtures were designed, two as control and two with additive for crystallization, with difference in compressive strength of the concrete. The main objectives for this study is to test effect of additives for crystallization with a view to make waterproof concrete. Tests that were performed are water pressure test, compressive strength, modulus of elasticity, capillary absorption and diffusion od chloride in concrete. Based on the work there are some recommendations for practical application in concrete constructions.

• Keywords: kristalizacija; pukotine; vodonepropusnost; trajnost betona
• Keywords (english): crystallization; cracks; waterproofing; durability of concrete
• Language: croatian
• URN:NBN: urn:nbn:hr:237:888076
• Study programme: Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures; Course: Construction Materials; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-12-04 11:19:50