Material Design Method of Cement Asphalt Composite Cementitious Mixture Based on Crack Resistance

Abstract

The invention discloses a material design method of a cement-asphalt composite cementing mixture based on crack resistance performance. The method includes the following steps: Step 1, determining the reasonable dosage ratio of cement and emulsified asphalt: Step 1, cement-emulsified asphalt composite cementation Material specimen preparation; Step 2, direct tensile test preparation; Step 3, direct tensile test; Step 4, test result processing; Step 5, determination of the reasonable dosage ratio of cement and emulsified asphalt; Reasonable dosage: Step 6, making cement-asphalt composite cemented mixture specimen; Step 7, strength test; Step 8, determination of reasonable dosage of composite cemented material. The invention fully considers the anti-crack performance of the cement-asphalt composite cemented mixture, and can better exert the ability of the cement-asphalt composite cemented mixture to resist reflection cracks.

Description

technical field [0001] The invention relates to a material design method of a cement-asphalt composite cemented mixture, in particular to a material design method of a cement-asphalt composite cemented mixture based on anti-crack performance. Background technique [0002] Cement-asphalt composite cemented mixture is a composite cemented mixture formed by mixing cement, emulsified asphalt and aggregates of a certain grade, through the hydration of cement and the demulsification and cementation of emulsified asphalt. The cement-asphalt composite cement mixture uses cement and emulsified asphalt to form a composite cement and aggregate for mixing, so it can realize normal temperature construction without heating, and has the advantages of construction technology. At the same time, the cement-asphalt composite cemented mixture uses cement and asphalt as the composite cementing material, which makes the cement-asphalt composite cemented mixture not only have a certain rigidity an...

AI Technical Summary

Problems solved by technology

When determining the amount of cement and emulsified asphalt, the method of orthogonal test is adopted, and the test amount is relatively large

And in terms of specific design methods, more emphasis is placed on the strength characteristics of cement-asphalt composite cementitious mixtures, but the crack resistance of cement-asphalt composite cementitious mixtures is not fully considered, and in the material design of cement-asphalt composite cementitious Material crack resistance requirements

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