Preverjanje lastnosti injekcijskih mešanic pripravljenih z različnimi mešalniki

diplomska naloga

Nina Predovnik (Avtor), Violeta Bokan-Bosiljkov (Mentor), Andreja Padovnik (Komentor)

Povzetek

Z diplomsko nalogo smo želeli preveriti vpliv mešanja z različnimi mešalniki na lastnosti sveže in strjene nekonstrukcijske injekcijske mešanice, ki se uporablja na področju restavratorstvakonservatorstva. Izbrani električni mešalniki so zajemali uporabo laboratorijskega mešalnika RILEMCEN, kuhinjskega mešalnika in električnega vrtalnega kladiva. Četrti način mešanja je bilo ročno mešanje, ker se ta pristop največ uporablja v restavratosrko-konservatorski praksi v Sloveniji. Preiskave so se izvajale na apneni injekcijski mešanici, saj so te mešanice zaradi svoje kemijske sestave in fizikalnih lastnosti najbolj kompatibilne s historičnimi površinami, potrebnimi sanacije. Poleg apnenega veziva je mešanica vsebovala še iz kremenčevo mivko in superplastifikator na osnovi polikarboksilatnih polimerov ter vodo. Po pregledu literature in zastavljenih kriterijih, ki naj bi jih nekonstrukcijske mešanice dosegale za uspešno sanacijo, smo izvedli preliminarne preiskave za dosego ustreznega razmerja sestavin mešanice. Nadaljnje preiskave so se izvajale po standardiziranih metodah, ki smo jih občasno morali modificirati, in po priporočilih priročnika avtoric Biçer-Şimşir in Rainer. Mešanice, ki so dosegale najboljše rezultate, so bile pripravljene z električnim vrtalnim kladivom. Prednost električnega vrtalnega kladiva je tudi možnost, da se uporabi na terenu.

Ključne besede

gradbeništvo;diplomska naloga;VSŠ;apnena injekcijska mešanica;kremenov pesek;restavratorstvo-konservatorstvo;vpliv mešanja;električni mešalniki;ročno mešanje;sposobnost injektiranja;

Podatki

Jezik:	Slovenski jezik
Leto izida:	2017
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	[N. Predovnik]
UDK:	691.51:624.138.24(043.2)
COBISS:	8243041
Št. ogledov:	1277
Št. prenosov:	1404
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	ǂThe ǂinfluence of different mixer types on the properties of injection grouts
Sekundarni povzetek:	This thesis studies mixing non-structural injection grouts using different mixers and its influence on properties on a fresh mixture and on hardened mortar. The research was conducted for restoration and conservation purposes. The selected electric mixers included the laboratory RILEM-CEN mixer, a kitchen mixer and a rotary hammer drill. As a last type of mixing non-structural injection grouts we choose a hand mixing, which is the most used method of mixing in Slovenian restoration and conservation practice. The tests were made with an injection grout based on hydrated lime, because lime-based mixtures have the best compatibility with historical architectural surfaces in need of restoration due to their physical and chemical composition. Furthermore, the injection grout consisted of quartz sand, a superplasticizer based on polycarboxylate polymers and of water. After examining the literature and the set criteria, which the non-constructive mixtures should achieve for successful restoration, preliminary investigations were carried out. Based on the preliminary results, we tried to achieve an appropriate ratio of the mixture components. Further investigations were conducted using standardized methods, which were occasionally modified. The recommendations of Biçer-Şimşir and Rainer were also followed. The rotary hammer drill produced the mixtures with the best results. In addition to providing good results, the rotary hammer drill is also advantageous for the use out in the field.
Sekundarne ključne besede:	civil engineering;graduation thesis;lime based injection grout;quartz sand;restoration-conservation;mixing influence;electric mixers;manual mixing;injection ability;
Vrsta dela (COBISS):	Diplomsko delo/naloga
Študijski program:	0
Komentar na gradivo:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani:	X, 49 str.
ID:	10914841