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1994. HELENE, Paulo, SILVA, Maristela G. Concreto Projetado com Adição de Microssílica In: 36º Reunião do IBRACON, 1994, Porto Alere.  36º Reunião do IBRACON.  p.539 – 552

1994. HELENE, Paulo, MONTEIRO, Paulo J. M. Designing concrete mixtures for desired mechanical properties and durability – ACI Proceedings SP-144 In: Concrete technology: past, present and future – A symposium honoring V. Mohan Malhotra, 1994, San Francisco.  Anais do Concrete technology: past, present and future – A symposium honoring V. Mohan Malhotra. American Concrete Institute, p.519-543.

1994. HELENE, Paulo, ISAIA, Geraldo C. Normas e Recomendações sobre Pozolanas em Concreto de Elevado Desempenho In: 36º Reunião anual do IBRACON, 1994, Porto Alegre.  36º Reunião anual do IBRACON. p.685 – 698

1994. HELENE, Paulo, ISAIA, Geraldo C. Normas e Recomendações sobre Pozolanas em Concreto de Elevado Desempenho In: 36º Reunião anual do IBRACON, 1994, Porto Alegre.  36º Reunião anual do IBRACON. p.685 – 698

1994. HELENE, Paulo, ARMELIN, Hugo S., DANTAS, Francisco A. S., FIGUEIREDO, Antonio D., SILVA, Maristela G., TANGO, Carlos E. S. Shotcrete permeability – considerations on the durability of tunnel linings In: Symposium honoring P. Kumar Mehta on durability of concrete, 1994, Nice.  Anais do Symposium honoring P. Kumar Mehta on durability of concrete.

1994. HELENE, Paulo & SBRIGHI NETO, Cláudio. The diagenic process and its application in the production of cementious construction materials In: First International conference on alkaline cements and concretes, 1994, Kiev.  Anais do First International conference on alkaline cements and concretes.