Abstract
This study focused on the properties of the cement asphalt emulsion (CA) mortar. The mixtures of the samples were fabricated and allowed them seven, fourteen and twenty eight days for curing before tested by compressive strength, three points flexural test, and indirect tensile strength to probe into their engineering properties. Hydraulic cement mortar samples used as control are analyzed for comparison. The test results show that the compressive strength is hydraulic cement mortar greater than CA mortar; the flexural strength at curing of 28 days is CA mortar greater than hydraulic cement mortar, however, at curing of 7 and 14 days is hydraulic cement mortar greater than CA mortar; and the indirect tensile strength is hydraulic cement mortar greater than CA mortar. The Scanning Electron Microscope (SEM) analysis results show that the Ca (OH2) increased with increases curing time. The CA mortar samples fabricated needs appropriate water for lubrication. Thus, the water absorption of fine aggregate must be concerned. The emulsion asphalt added too much may reduce the strength. In field test, the CA mortar performs very well, especially in workability.
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