Uticaj Mikroarmature Na Hidrauličko Skupljanje Betona

Čeh, Arpad; Kekanović, Milan; Kukaras, Danijel; Kasaš, Karolj; Varju, Đerđ; Karaman, Golub

doi:10.14415/zbornikgfs22.009

Cited by 2 publications

(3 citation statements)

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“…It can be explained by the fact that the synthetic fibre is very effective in the earliest stage, while their elastic modulus is lower than the modulus of concrete elasticity, so cracking and shrinkage are prolonged for the subsequent period when the concrete strength is greater. Larger hydraulic shrinkage could be explained exactly by backward, prolonged shrinkage of the early stages of hardening [7].…”

Section: Shrinkagementioning

confidence: 94%

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The properties of the cement screeds with the addition of polypropylene fibres and the shrinkage-reducing admixture

Radulović¹,

Jevtić²,

Радоњанин³

2016

Gra mat konstru

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UVODIscrpno i realno definisanje zahteva koji se postavljaju za građevinske materijale, u zavisnosti od funkcije koju u složenom sistemu objekta konkretan materijal ima, kao i tehnički podaci o svim relevantnim karakteristikama, osnov su za pravilan izbor, primenu i ugradnju pogodnih građevinskih materijala. Danas se savremene konstrukcije grade u kombinacijama raznovrsnih, fizički posebnih ali funkcionalno međusobno povezanih materijala, što nameće potrebu da se materijali posmatraju u sprezi s konstrukcijom. Paralelno s tzv. tradicionalnim materijalima, u primeni je čitav niz novih, industrijski proizvedenih materijala, prilagođenih zahtevima i funkcijama savremenog graditeljstva.Iako se danas cementna košuljica-estrih u velikom obimu izvodi primenom "gotovih", fabrički proizvedenih materijala, što predstavlja veliki korak napred, uz koje se najčešće ne dobijaju tehnički listovi s podacima dovoljnim za poznavanje, pravilan izbor i primenu, u okviru klasičnog postupka njihovog izvođenja najčešće se ne propisuju neophodne fizičko-mehaničke, reološke i tehnološke karakteristike datih malterskih kompozicija.Brojna ispitivanja pokazuju da se svojstva cementnih košuljica, koja po definiciji predstavljaju sloj dobro zbijene Mr Rada M. Radulović, dipl.inž.građ.

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Section: Shrinkagementioning

confidence: 94%

“…Veće hidrauličko skupljanje moglo bi se objasniti upravo zaostalim, prolongiranim skupljanjem iz rane faze očvršćavanja [7].…”

Section: Shrinkageunclassified

The properties of the cement screeds with the addition of polypropylene fibres and the shrinkage-reducing admixture

Radulović¹,

Jevtić²,

Радоњанин³

2016

Gra mat konstru

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“…The technology is well known, numerous formulas, evaluating methods exist, a vast amount of practical experience is available from the past 60 years [9]. The method is current and used widely all over the world [10], [11], [12]. The measurement is relatively simple and fast.…”

Section: Surface Hardness Measurement (Rebound Hammer Test)mentioning

confidence: 99%

Non-Destructive Strength Estimation of Lightweight Aggregate Concretes

Nemes

Simon

2017

MSF

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The porosity, water absorbing capability, internal load bearing system of light weight aggregate concretes differ from ordinary concrete.In case of structural concretes there is often a demand of non-destructive testing, but between the available, connected modifying parameters there are none which are suitable for the special case of light weight aggregate concretes. Particularly big difference in the strength estimation may be observed in case early age concretes, when the moisture content is typically significantly higher than in ordinary concrete.Experiments were executed on structural concretes out of different aggregates (quartz gravel, expanded clay, foamed glass). The tests were carried out at the concretes ages of 3, 7, 28, 91 and 360 days by destructive (cube crushing strength) and two non-destructive testing methods (rebound hammer and ultrasonic). The results are compared and models are drawn.

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Uticaj Mikroarmature Na Hidrauličko Skupljanje Betona

Cited by 2 publications

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The properties of the cement screeds with the addition of polypropylene fibres and the shrinkage-reducing admixture

The properties of the cement screeds with the addition of polypropylene fibres and the shrinkage-reducing admixture

Non-Destructive Strength Estimation of Lightweight Aggregate Concretes

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