Artículos de revistas
Macro-defect Free Cements Influence Of Poly(vinyl Alcohol), Cement Type, And Silica Fume
Registro en:
Cement And Concrete Research. , v. 29, n. 5, p. 747 - 751, 1999.
88846
2-s2.0-0033121907
Autor
Santos R.S.
Rodrigues F.A.
Segre N.
Joekes I.
Institución
Resumen
Macro-defect free cements were prepared using the following variables: processing (calendering and hand-mixing), poly(vinyl) alcohol (with different molecular weight and hydrolysis degree), cement (portland type I and slag-modified), and additions of silica fume. The results show that better processing is achieved by calendering the fresh paste and using poly(vinyl alcohol) with low hydrolysis degree and low molecular weight. Vickers hardness measurements indicate that materials prepared using portland type I cement are not significantly affected by humidity. Addition of silica fume lowers the acid resistance of these materials, suggesting that silica fume acts as an inert filler. © 1999 Elsevier Science Ltd. All rights reserved. 29 5 747 751 Young, J.F., Mindess, S., (1981) Concrete, , Prentice-Hall, Lawrence, NJ Bayasi, Z., Zeng, J., Properties of polypropylene fiber reinforced concrete (1993) ACI Mat J, 90, pp. 605-610 Young, J.F., Shah, S., Current research at the NSF science and technology center for advanced cement-based materials (1990) Cer Bull, 69, pp. 1319-1331 Su, Z., Bijen, J.M., Larbi, J.A., The influence of polymer modification on the adhesion of cement pastes to aggregates (1991) Cem Concr Res, 21, pp. 169-178 Kuhlmann, L.A., Styrene-butadiene latex-modified concrete: An ideal concrete repair material? (1990) Concr Inter, 12, pp. 59-65 Chandra, S., Flodin, P., Interactions of polymers and organic admixtures on portland cement hydration (1987) Cem Concr Res, 17, pp. 875-890 Segre, N., Tonella, E., Joekes, I., Evaluation of the stability of polypropylene fibers in environments aggressive to cement-based materials (1998) Cem Concr Res, 28, pp. 75-81 Mindess, S., Vondran, G., Properties of concrete reinforced with fibrillated polypropylene fibers under impact loading (1988) Cem Concr Res, 18, pp. 109-115 Shakra, Z.M., Gopalaratnam, V.S., Deflections measurements and toughness evaluation for FRC (1993) Cem Concr Res, 23, pp. 1455-1466 Gopinatahn, K., Rao, R., Influence of some water soluble polymers on the mechanical properties of cement polymer composites (1992) Proc. of the 9th International Congress on Chemistry of Cement, pp. 538-543. , New Delhi, India Birchall, J.D., Howard, A.J., Kendall, K., Flexural strength and porosity of cements (1981) Nature, 289, pp. 388-398 Alford, N.M., Birchall, J.D., The properties and potential application of macro-defect free cement (1984) Mat Res Soc Symp Proc, 42, pp. 265-267 Popoola, O.O., Kriven, W.M., Young, J.F., Microstructural and microchemical characterization of a calcium aluminate-polymer composite (MDF cement) (1991) J Am Ceram Soc, 74, pp. 1928-1933 Hu, S.O., XPS nondestructive depth analysis method and its application in cement-based composite materials (1994) Cem Concr Res, 24, pp. 1509-1514 Lewis, J.A., Kriven, W.M., Microstructure-property relationships in macro-defect free cement (1993) MRS Bull, 18, pp. 72-77 Rodrigues, F.A., Joekes, I., Macro-defect free cements: A new approach (1998) Cem Concr Res, 28, pp. 877-885 Srinivasan, S.R., Blau, P.J., Effect of relative humidity on repetitive impact behavior of machined silicon nitride (1994) J Am Ceram Soc, 77, pp. 683-688 Tandon, R., Cook, R.E., Indentation crack initiation and propagation in tempered glass (1993) J Am Ceram Soc, 76, pp. 885-889 Keulen, N.M., Indentation creep of hydrated soda lime silicate glasses determined by nanoindentation (1993) J Am Cer Soc, 76, pp. 904-912 Maage, M., Sellevold, E.J., Effect of microsilica on the durability of concrete structures (1987) Concr Int, 9, pp. 39-43 Bentz, D.P., Stutzman, P.E., Evolution of porosity and calcium hydroxide in laboratory concretes containing silica fume (1994) Cem Concr Res, 24, pp. 1044-1050 Rodrigues, F.A., (1995) Materials a Base de Cimento Isentos de Macro-defeitos, , PhD Thesis, Instituto de Química, UNICAMP - Campinas, SP, Brazil Khan, M.S., Ayers, M.E., Curing requirements of silica fume and flyash mortars (1993) Cem Concr Res, 23, pp. 1480-1490