@inproceedings{inproceedings96a6b281,
title   = {Shotcrete permeability: considerations on the durability of tunnel linings},
author = {Armelin, H S and Dantas, F A S and Figueiredo, Antonio Domingues de and Helene, Paulo R. L. and Silva, M G and Tango, Carlos Eduardo de Siqueira},
year = {1994},
publisher = {Aci},
booktitle   = {International Conference on Durability of Concrete - CANMET/ACI}
}