Additive composition for cement emulsion slurry

Abstract

The invention discloses an extra agent component of cement magma, which is allocated by 2.5-5.0% wetting agent or penetrant, 0.6-1.2% mortar additive or dehydragent, wherein the wetting agent is low-foam dispersant RFCF-10 or JSCF-10; the penetrant is rapid penetrant T or JFC penetrant or penetrant JFC or GPG; the mortar additive is B-2 typed mortar additive or sky mortar additive; the dehydragent is extra concrete-YF early-strong high-effective dehydragent or GX-1 retardation superplastic high-property dehydragent or RH-A high-density naphthalene high-effective dehydragent or RH-2 early-strong high-effective dehydragent.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to materials used for repairing asphalt pavement segregation diseases. Background technique [0002] At present, with the wide application of asphalt pavement structure in high-grade highways, the problems of its durability and early damage of pavement structure have become increasingly prominent. The investigation found that many expressways have been open to traffic for one to two years, and some even less than one year, or more There are a large number of damage phenomena such as pockmarks, looseness, falling grains, pumping, pits, and network cracks in the asphalt surface layer. These early diseases are more or less related to water, and most of the water damage is due to pavement segregation. , Moisture can easily penetrate into the internal voids of the asphalt pavement. Asphalt pavement segregation means that the mixture gradation, asphalt dosage, void ratio an...

AI Technical Summary

Problems solved by technology

[0005] At present, when the segregation disease occurs on the asphalt pavement, if the segregation disease is not very serious, the treatment method usually adopted in the construction process is to artificially finely screen the stone chips, mix the sieved fine stone chips with asphalt, and spread them on the asphalt pavement The segregation disease area should be rolled in time with a road roller. This treatment method can only alleviate the segregation disease on the surface of the asphalt pavement, and cannot treat the segregation disease that occurs in the deep layer of the asphalt road.

If the segregation disease is serious, the treatment method adopted is to delineate the segregation disease area and eradicate it, and re-pave the asphalt mixture. This method not only wastes manpower and material resources, but also prolongs the construction period.