Central Technological Library of the University of Ljubljana (CTK)
-
Duktilnost betona kot merilo za projektiranje oblog predorov in rudniških prehodov = Concrete ductility as a parameter for designing of tunnel and mine roadway liningsŠušteršič, Jakob ; Zajc, Andrej, 1938-Ker vlakna v mikroarmiranem betonu (MAB) ovirajo širjenje razpoke v vzdolžni in prečni smeri, zadržujejo padanje trdnosti po prvi razpoki. To je ena od osnovnih funkcij vlaken v MAB. Med gradnjo ... oblog predorov in rudniških prehodov kakor tudi v mnogih drugih aplikacijah se v mešanice betona dodajajo jeklena in polipropilenska vlakna. Za nadaljnje širjenje razpoke po njenem nastanku je potrebna večja energija zaradi vzajemnega premostitvenega učinka obeh vrst vlaken. Na ta način se povečujeta žilavost in duktilnost MAB. S starostjo se povečuje trdnost betona. Čim višja je trdnost betona, bolj krhka je njegova porušitev. S starostjo se povečuje tudi učinkovitost vlaken v MAB, in sicer zaradi izboljšanja sprijemnosti med vlakni in strjeno cementno pasto. Rezultati naših raziskav kažejo, da se žilavost MBA z jeklenimi vlakni zmanjšuje do 28 dni, po tej starosti pa se zmerno povečuje. V članku obravnava induktilno obnašanje MAB z različnimi prostorskimi deleži jeklenih vlaken in njihovo žilavost, ki sva jo merila in izračunala po metodi ameriškega standarda ASTM c 1018 (indeksi žilavosti) in japonskega standarda JCI-SF4 (ekvivalentna trdnost).Source: Gradbeni vestnik : glasilo Zveze društev gradbenih inženirjev in tehnikov Slovenije. - ISSN 0017-2774 (Letn. 52, št. 9, spetember 2003, str. 223-229)Type of material - article, component partPublish date - 2003Language - slovenianCOBISS.SI-ID - 25485829
Author
Šušteršič, Jakob |
Zajc, Andrej, 1938-
Topics
gradbeništvo |
gradbeni materiali |
beton |
razpoke |
raziskave materialov |
vrednost betona |
žilavost |
duktilnost
source: Gradbeni vestnik : glasilo Zveze društev gradbenih inženirjev in tehnikov Slovenije. - ISSN 0017-2774 (Letn. 52, št. 9, spetember 2003, str. 223-229)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|---|
Šušteršič, Jakob | 09168 |
Zajc, Andrej, 1938- | 01577 |
Source: Personal bibliographies
and: SICRIS
Select pickup location:
Material pickup by post
Delivery address:
Address is missing from the member's data.
The address retrieval service is currently unavailable, please try again.
By clicking the "OK" button, you will confirm the pickup location selected above and complete the reservation process.
By clicking the "OK" button, you will confirm the above pickup location and delivery address, and complete the reservation process.
By clicking the "OK" button, you will confirm the address selected above and complete the reservation process.
Notification
Automatic login and reservation service currently not available. You can reserve the material on the Biblos portal or try again here later.
Subject headings in COBISS General List of Subject Headings
Select pickup location
The material from the parent unit is free. If the material is delivered to the pickup location from another unit, the library may charge you for this service.
Pickup location | Material status | Reservation |
---|
Reservation in progress
Please wait a moment.
Reservation was successful.
Reservation failed.
Reservation...
Membership card:
Pickup location: