Effect of Cement on Emulsified Asphalt Mixtures
Tóm tắt
Emulsified asphalt mixtures have environmental, economical, and logistical advantages over hot mixtures. However, they have attracted little attention as structural layers due to their inadequate performance and susceptibility to early life damage by rainfall. The objective of this article is to provide an improved insight into how the mechanical properties of emulsion mixtures may be improved and to determine the influence of cement on emulsified asphalt mixtures. Laboratory tests on strength, temperature susceptibility, water damage, creep and permanent deformation were implemented to evaluate the mechanical properties of emulsified asphalt mixtures. The test results showed that mechanical properties of emulsified asphalt mixtures have significantly improved with Portland cement addition. This experimental study suggested that cement modified asphalt emulsion mixtures might be an alternate way of a structural layer material in pavement.
Từ khóa
Tài liệu tham khảo
Transport Road Research Laboratory (TRRL) (1969), Bituminous Materials in Road Construction. Crowthorne, Berkshire, England
Schmidt R.J., Graf P.E. (1972) The Effect of Water on the Resilient Modulus of Asphalt-Treated Mixes. Proc. AAPT 41:118–162
Schmidt R.J., Santucci L.E., Coyne L.D. (1973) Performance Characteristics of Cement Modified Asphalt Emulsion Mixes. Proc. AAPT 42:300–319
Terrel R.L., Wang C.K. (1971) Early Curing Behavior of Cement Modified Asphalt Emulsion Mixtures. Proc. AAPT 40:108–125
Head R.W. (1974) An Informal Report of Cold Mix Research Using Emulsified Asphalt as a Binder. Proc. AAPT 43:110–131
T. Uemura and Y. Nakamori, Stabilization Process of Cement Asphalt Emulsion in Japan, First World Congress on Emulsions, 1993, Paris, 4-13-16/01-06
Li G., Zhao Y., Pang S.S., Huang W. (1998) Experimental Study of Cement-Asphalt Emulsion Composite. Cement Concrete Res. 28(5):635–641
S. F. Brown and D. Needham, A Study of Cement Modified Bitumen Emulsion Mixtures, Proc. AAPT, 2000, 69
Pouliot N., Marchand J., Pigeon M. (2003) Hydration Mechanisms, Microstructure, and Mechanical Properties of Mortars Prepared with Mixed Binder Cement Slurry-Asphalt Emulsion. J. Mater.Civil Eng. 15(1):54–59
H. Song, J. Do, and Y. Soh, Feasibility Study of Asphalt-modified Mortars using Asphalt Emulsion, Construction and Building Materials, 2006, 20, p 332–337 (in press) (Available online 7 April 2005)
Asphalt Institute, Asphalt Cold Mix Manual, Manual Series No. 14 (MS-14), 3rd ed., 1989, USA
R.J. Schmidt, A Practical Method for Measuring the Resilient Modulus of Asphalt Treated Mixes, Highway Research Record No. 404, Highway Research Board, Washington, D.C., 1972, p 22–32
H. Von Quintus, J. Scherocman, C. Hughes, and T. Kennedy, NCHRP Report 338, Asphalt—Aggregate Mixture Analysis System (AAMAS), TRB, National Research Council, Washington D.C., 1991
A. Alderson, UMATTA Testing Equipment Trial Course, England, 1995
I. Ishai and S. Nesichi, Laboratory Evaluation of Moisture Damage to Bituminous Paving Mixtures by Long-Term Hot Immersion, Transportation Research Record (TRR), 1171, Transportation Research Board, Washington D.C., 1988
R.P. Lotman, Laboratory Test Method for Predicting Moisture-Induced Damage to Asphalt Concrete, Transportation Research Record (TRR), 843, Transportation Research Board, Washington D.C., 1982
K.D. Stuart, Evaluation of Procedures Used to Predict Moisture Damage in Asphalt Mixtures, Report No. FHWA-RD-86-090, Federal Highway Administration, Washington, D.C., 1986