A thin-wall cement paste cylinder for creep tests at variable humidity or temperature
Tóm tắt
Production of cement paste cylindrical specimens developed for creep tests at variable humidities and/or temperatures is described. The wall thickness is only 0.75 mm, which is required so that an equilibrium humidity distribution can be achieved in a short time with the result that the material parameters may be obtained directly by experiment.
Tài liệu tham khảo
Bažant, Z.P.—Thermodynamics of interacting continua with surfaces and creep analysis of concrete structures, Nuclear Engineering and Design, Vol. 20, No. 2, 1972; see also Cement and Concrete Research, Vol. 2, pp. 1–16, 1972; and Materials & Structures (RILEM), Vol. 3, pp. 3–36, 1970.
Torroja E., de la Peña C.—Discussion to paper on “Volume changes of concrete” by R. L'Hermite, in “Chemistry of Cement”, 4th Intern. Symp., Wash., D.C., Oct. 1960, U.S. Nat Bureau of Standards Monograph 43, Vol. II, pp. 695–699.
Mullen W.G., Dolch W.L.—Creep of Portland cement paste, Proc., Am. Soc. for Testing Materials, Vol. 64, 1964, pp. 1146–1170.
Jessop E.L.—Creep and creep recovery in concrete materials, Ph.D. Thesis, Civil Engineering Department, University of Calgary, 1969.
Bažant Z.P., Najjar L.J.—Nonlinear water diffusion in nonsaturated concrete, Materials & Structures (RILEM), Vol. 5, pp. 3–20, 1972; see also, Cement and Concrete Research, Vol. 1, pp. 461–473, 1971.